DESC:“A CELL HOLDER FOR A BATTERY PACK”

FIELD OF THE INVENTION
The present disclosure relates to a battery pack, and more particularly to a cell holder for the battery pack. The present application is based on, and claims priority from an Indian Provisional Application Number 202341025040 filed on 01-04-2023, the disclosure of which is hereby incorporated by reference herein.

BACKGROUND OF THE INVENTION
A battery pack is a device that stores electrical energy to provide power to an electrical system. The battery pack includes a plurality of cells. The plurality of cells may be connected in a series, a parallel, or a combination of both (series, and parallel) to deliver the desired voltage, current, or power.
In a conventional method, the battery pack includes at least one cell holder, the plurality of cells, an interconnector, a heat sink, at least one thermally conductive layer, and the like. The thermally conductive layer is dispensed to a predetermined height of a bottom battery casing of the battery pack. A lower cell holder and the plurality of cells are placed into the bottom battery casing of the battery pack in such a way that the thermally conductive layer is in contact with the surface of the plurality of cells to dissipate the heat from the plurality of the cells.
Automobile manufacturers face difficulties while dispensing the thermally conductive layer into the lower cell holder of the battery pack because the thermally conductive layer will not make proper contact with the plurality of cells on the lower cell holder due to a flat surface of the bottom battery casing. The lower cell holder of the battery pack includes a plurality of channels to flow the thermally conductive layer. While flowing the thermally conductive layer on the plurality of channels of the cell holder, air from the atmosphere will be arrested and lead to the creation of air bubbles inside the battery pack. The air bubbles will decrease the heat transfer efficiency and lead to an increase in the temperature level at local regions in the battery pack. The temperature hike in the battery pack may cause fire accidents and a thermal runaway in the worst scenarios. The conventional method doesn’t have any course of action to release the air bubbles back into the environment from the battery pack. Furthermore, the conventional method is not capable of making proper contact between the plurality of cells and the thermally conductive layer as fluid cannot flow through the gap between a bottom cell holder and the flat surface of the bottom battery casing. So, the conventional method is not capable of pouring the thermally conductive layer without creating air bubbles.
Accordingly, there remains a need for an improved cell holder for the battery pack and therefore address the aforementioned issues.

SUMMARY OF THE INVENTION
Accordingly, the embodiments herein disclose a cell holder of a battery pack. The cell holder includes a first cell holder and a second cell holder. The cell holder is configured to provide a predetermined space between a bottom battery casing and a bottom surface of the plurality of cells. A plurality of guiding profiles configured to fix the cell holder into the bottom battery casing of the battery pack. A plurality of fastening profiles is configured to provide space for a plurality of cell holder sleeves to couple the cell holder to one or more components of the battery pack. The plurality of fastening profiles is configured to provide space for one or more fasteners to couple the cell holder to one or more components of the battery pack. The plurality of cell holder sleeves includes an arrangement to fix the one or more fasteners. A plurality of cavities configured to hold a plurality of cells in a predetermined position. The plurality of cavities is in a predetermined shape. The plurality of cavities includes a plurality of holding structures to hold the plurality of cells. The plurality of holding structures is in a predetermined shape. The plurality of holding structures positioned on a circumference of the plurality of cavities. The plurality of holding structures is positioned from a bottom side of the cell holder of the battery pack. A plurality of weight-reducing structures positioned on the cell holder of the battery pack to remove material to reduce the weight of the cell holder. The plurality of weight-reducing structures is configured to support the easy flow of a first layer on the cell holder. The plurality of weight-reducing structures positioned on a front portion of the cell holder, and a rear portion of the cell holder. A plurality of channels is configured to help easy flow and equal distribution of the first layer to the plurality of cavities. The plurality of channels is in a predetermined shape. The plurality of channels is configured to reduce material. The plurality of channels includes a predetermined depth which allows the first layer to be filled within the cell holder. The equally distributed first layer enables better contact between the first layer and an axial and a circumferential surface of the plurality of the cells.
In some embodiments, the cell holder includes an electrically insulative, a thermally conductive, and a structurally rigid material.
In some embodiments, the electrically insulative, thermally conductive and the structurally rigid material includes a plastic composite. The plastic composite includes a non-metallic plastic composite or polymer-based single-part or two-part material.
In some embodiments, the one or more fasteners are configured to be fixed on the arrangement that is placed inside the plurality of cell holder sleeves to couple the cell holder to one or more components of the battery pack. The one or more components of the battery pack include a second cell holder, the plurality of cells, and an interconnector.
In some embodiments, the cell holder of the battery pack further includes one or more supporting members. The one or more supporting members are configured to maintain a predetermined gap between the plurality of cells to allow easy flow of the first layer.
In some embodiments, the one or more supporting members includes one or more shapes. The one or more supporting members are configured to help easy flow of the first layer.
In some embodiments, the plurality of channels includes a plurality of openings. The plurality of openings arranged in a manner that allows the air bubbles into the surroundings. The plurality of openings configured for weight reduction and material bonding, provides provisions to release air bubbles, and a flow passage for the material. The plurality of openings configured to ensure fluid flows through each of the plurality of cells and wets at least one of the axial and the circumferential surfaces of the plurality of cells and the bottom battery casing.
In some embodiments, the plurality of fastening profiles supports and holds the first cell holder, the second cell holder along with the plurality of cells using the plurality of cell holder sleeves. The plurality of cell holder sleeves supports and holds the first cell holder, the second cell holder, and the interconnector along with the plurality of cells.
In some embodiments, the plurality of fastening profiles placed in a predetermined location of the cell holder. The predetermined location of the plurality of fastening profiles includes a front portion and a rear portion of the cell holder.
In some embodiments, the plurality of guiding profiles positioned on a predetermined location of the cell holder. The predetermined location of the cell holder is positioned at a lengthwise side and a widthwise side of the cell holder.
In some embodiments, the predetermined shape of the plurality of cavities includes a cylindrical shape.
In some embodiments, the predetermined shape of the plurality of cavities varied based on a shape of the plurality of cells. The shape of the plurality of the cells includes a cylindrical shape, a prismatic shape, and a pouch shape.
In some embodiments, the predetermined shape of the plurality of the channels includes a concave shape, a bridge shape, and an arc shape.
In some embodiments, the cell holder further includes the straight flow path to allow the first layer to flow in a straight line. The straight flow path is configured to help better flow-ability of the first layer.
These and other aspects of the embodiments herein will be better appreciated and understood when considered in conjunction with the following description and the accompanying drawings. It should be understood, however, that the following descriptions, while indicating preferred embodiments and numerous specific details thereof, are given by way of illustration and not of limitation. Many changes and modifications may be made within the scope of the embodiments herein without departing from the invention thereof, and the embodiments herein include all such modifications.

BRIEF DESCRIPTION OF THE DRAWING
This invention is illustrated in the accompanying drawings, throughout which like reference letters indicate corresponding parts in the various figures. The embodiments herein will be better understood from the following detailed description with reference to the drawings, in which:
FIG. 1 illustrates an exploded view of a secondary battery pack according to an embodiment herein;
FIG. 2 illustrates an exploded view of a primary battery pack according to an embodiment herein;
FIG. 3A illustrates a front view of a first cell holder, and 3B illustrates a rear view of the first cell holder according to an embodiment herein;
FIG. 3C illustrates a sectional view of one or more supporting members according to an embodiment herein;
FIG. 4A illustrates a front view of the first cell holder with a straight flow path, and 4B illustrates a rear view of the first cell holder with the straight flow path according to an embodiment herein; and
FIG. 4C illustrates a sectional view of the straight flow path of the first cell holder according to an embodiment herein.

DESCRIPTION OF THE INVENTION
In the following description, for the purposes of explanation, various specific details are set forth in order to provide a thorough understanding of embodiments of the present disclosure. It will be apparent, however, that embodiments of the present disclosure may be practiced without these specific details. Several features described hereafter can each be used independently of one another or with any combination of other features. An individual feature may not address all of the problems discussed above or might address only some of the problems discussed above. Some of the problems discussed above might not be fully addressed by any of the features described herein.
The ensuing description provides exemplary embodiments only, and is not intended to limit the scope, applicability, or configuration of the disclosure. Rather, the ensuing description of the exemplary embodiments will provide those skilled in the art with an enabling description for implementing an exemplary embodiment. It should be understood that various changes may be made in the function and arrangement of elements without departing from the spirit and scope of the disclosure as set forth.
The word “exemplary” and/or “demonstrative” is used herein to mean serving as an example, instance, or illustration. For the avoidance of doubt, the subject matter disclosed herein is not limited by such examples. In addition, any aspect or design described herein as “exemplary” and/or “demonstrative” is not necessarily to be construed as preferred or advantageous over other aspects or designs, nor is it meant to preclude equivalent exemplary structures and techniques known to those of ordinary skill in the art. Furthermore, to the extent that the terms “includes,” “has,” “contains,” and other similar words are used in either the detailed description or the claims, such terms are intended to be inclusive—in a manner similar to the term “comprising” as an open transition word—without precluding any additional or other elements.
Reference throughout this specification to “one embodiment” or “an embodiment” or “an instance” or “one instance” means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present disclosure. Thus, the appearances of the phrases “in one embodiment” or “in an embodiment” in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” and/or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items.
The accompanying drawings are used to help easily understand various technical features and it should be understood that the embodiments presented herein are not limited by the accompanying drawings. As such, the present disclosure should be construed to extend to any alterations, equivalents and substitutes in addition to those which are particularly set out in the accompanying drawings. Although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are generally only used to distinguish one element from another.
Accordingly, the embodiments herein disclose a cell holder of a battery pack. The cell holder includes a first cell holder and a second cell holder. The cell holder is configured to provide a predetermined space between a bottom battery casing and a bottom surface of the plurality of cells. A plurality of guiding profiles configured to fix the cell holder into the bottom battery casing of the battery pack. A plurality of fastening profiles is configured to provide space for a plurality of cell holder sleeves to couple the cell holder to one or more components of the battery pack. The plurality of fastening profiles is configured to provide space for one or more fasteners to couple the cell holder to one or more components of the battery pack. The plurality of cell holder sleeves includes an arrangement to fix the one or more fasteners. A plurality of cavities configured to hold a plurality of cells in a predetermined position. The plurality of cavities is in a predetermined shape. The plurality of cavities includes a plurality of holding structures to hold the plurality of cells. The plurality of holding structures is in a predetermined shape. In one embodiment, the predetermined shape of the plurality of holding structures may include, but not limited to an arc shape.
In one embodiment, the plurality of holding structures positioned on a circumference of the plurality of cavities. The plurality of holding structures is positioned from a bottom side of the cell holder of the battery pack. A plurality of weight-reducing structures positioned on the cell holder of the battery pack to remove material to reduce the weight of the cell holder. The plurality of weight-reducing structures is configured to support the easy flow of a first layer on the cell holder. The plurality of weight-reducing structures positioned on a front portion of the cell holder, and a rear portion of the cell holder. A plurality of channels is configured to help easy flow and equal distribution of the first layer to the plurality of cavities. The plurality of channels is in a predetermined shape. The plurality of channels is configured to reduce material. The plurality of channels includes a predetermined depth which allows the first layer to be filled within the cell holder. The equally distributed first layer enables better contact between the first layer and an axial and a circumferential surface of the plurality of the cells.
Referring now to the drawings, and more particularly to FIGS. 1 to 4, where similar reference characters denote corresponding features consistently throughout the figures, these are shown as preferred embodiments.
A battery pack 100, 200 includes a cell holder 107, 207.In an embodiment, the cell holder 107, 207 includes a first cell holder 108, 208, and a second cell holder 114, 214. In an embodiment, the battery pack 100, 200 may be a primary battery pack 200 and a secondary battery pack 100. In one embodiment, the secondary battery pack 100 includes the first cell holder 108 and the second cell holder 114. In another embodiment, the primary battery pack 200 includes the first cell holder 208 and the second cell holder 214.In an embodiment, the first cell holder 108, 208 may be a bottom cell holder. In another embodiment, the first cell holder 108, 208 may be a top cell holder. In an embodiment, the second cell holder 114, 214 may be a bottom cell holder. In another embodiment, the second cell holder 114, 214 may be a top cell holder. In yet another embodiment, the first cell holder 108, 208, and the second cell holder 114, 214 may be either the bottom cell holder or the top cell holder.
FIG. 1 illustrates an exploded view of a secondary battery pack 100 according to an embodiment herein. An architecture/stack up of the secondary battery pack 100 may be applicable for a primary battery back 200 (as shown in Figure 2). The secondary battery pack 100 includes a bottom battery casing 102, a housing 104, a plurality of cell holder sleeves 106, a cell holder 107, a plurality of cells 110, a Battery Management System (BMS) 112, an interconnector 116, a top battery casing 118, a heatsink 120, and a plurality of connectors (not shown in the figure). The cell holder 107 includes, but not limited to, a first cell holder 108, and a second cell holder 114. In one embodiment, the secondary battery pack 100 may/may not include the second cell holder 114.
The secondary battery pack 100 further includes one or more vents for air circulation. The one or more vents may be positioned on the housing 104.The bottom battery casing 102 includes a plurality of mounting means. In one embodiment, the plurality of mounting means includes, but not limited to, one or more fasteners to couple the bottom battery casing 102 to the housing 104. In another embodiment, the one or more fasteners include, but not limited to, screws, nails, nuts, bolts, washers, anchors, and rivets. The plurality of mounting means configured to couple the bottom battery casing 102 with the housing 104. The housing 104 is made up of a thermally conductive material to increase the rate of heat transfer from the secondary battery pack 100 to the surroundings.
In one embodiment, the thermally conductive material may include, but not limited to, aluminum. In yet another embodiment, the housing 104 is made by casting processing or sheet metal process and the like. In another embodiment, the thermally conductive material may be a metal or non-metal-like composite. The housing 104 acts as an outer wall of the secondary battery pack 100.In one embodiment, the housing 104 includes a plurality of fins to transfer the heat generated by the secondary battery pack 100. The plurality of cell holder sleeves 106 is configured to support and hold the first cell holder 108, and the second cell holder 114 along with the plurality of cells 110. In one embodiment, the plurality of cell holder sleeves 106 is configured to support and hold the first cell holder 108, the second cell holder 114, and the interconnector 116 along with the plurality of cells 110.
In yet another embodiment, the plurality of cell holder sleeves 106 is configured to support and hold the first cell holder 108, the second cell holder 114, and the interconnector 116 along with the plurality of cells 110 using the one or more fasteners. In another embodiment, the one or more fasteners include, but not limited to, screws, nails, nuts, bolts, washers, anchors, and rivets. In one embodiment, the plurality of cell holder sleeves 106 may include, but not limited to, metal or non-metal. The plurality of cell holder sleeves 106 may include an insulation layer around to avoid short-circuiting. The interconnector 116 is positioned on a top portion of the second cell holder 114. The first cell holder 108 is positioned on a top portion of the bottom battery casing 102.The first cell holder 108 includes a plurality of cavities and is configured to hold the plurality of cells 110 in a predetermined position. The plurality of cavities is in a predetermined shape.
The first cell holder 108 may be an electrically insulative, a thermally conductive, and a structurally rigid material. In one embodiment, the electrically insulative, the thermally conductive, and the structurally rigid material may be a plastic composite. In another embodiment, the plastic composite may be a non-metallic plastic composite or polymer-based single-part or two-part material. In yet another embodiment, the electrically insulative, the thermally conductive, and the structurally rigid material may have the characteristics to withstand high temperatures, without losing natural properties. The plurality of cells 110 is positioned on a top portion of the first cell holder 108. In one embodiment the plurality of cells 110 is positioned on the plurality of cavities of the first cell holder 108. In another embodiment, the plurality of cells 110 may include, but not limited to, nickel cadmium, alkaline, nickel metal hydride (NIMH), lithium-ion, nickel hydrogen, nickel-zinc, lithium iron phosphate (Life PO) or LFP (lithium ferrophosphate), sodium ion, electro-chemical cells, and the like. The first cell holder 108 is configured to provide a predetermined space between the bottom battery casing 102 and the bottom surface of the plurality of cells 110.
The BMS 112 is configured to protect the secondary battery pack 100 from being overcharged/over-discharged. The BMS 112 is configured to monitor the temperature level of the plurality of cells 110.The BMS 112 is configured to monitor the voltage levels of each of the plurality of cells 110. Furthermore, the secondary battery pack 100 includes a BMS mounting member (as shown in Figure 3) to hold the BMS 112. In one embodiment, the BMS mounting member acts as a heat sink for the BMS 112 to absorb heat from the BMS 112 and transfer to the housing 104. The BMS 112 is mounted on a top portion of the BMS mounting member. The BMS mounting member is fastened with a casing of the secondary battery pack 100.
In one embodiment, the BMS mounting member may include, but not limited to, metal, nonmetal, structurally rigid, and thermally conductive material. The BMS mounting member includes a first set of openings and a second set of openings. The first set of openings is configured to pour a first layer. The second set of openings is configured to pour a second layer. In one embodiment, the first set of openings and the second set of openings are positioned at a predetermined height of the secondary battery pack 100. The BMS mounting member further includes a plurality of mounting points to couple the BMS mounting member to the BMS 112.The BMS mounting member is coupled to the housing 104 using the one or more fasteners. In one embodiment, the one or more fasteners include, but not limited to, screws, nails, nuts, bolts, washers, anchors, and rivets.
The second cell holder 114 is positioned on a top portion of the plurality of cells 110.The second cell holder 114 includes a plurality of cavities and is configured to hold the plurality of cells 110 in a predetermined position. The second cell holder 114 may be an electrically insulative, a thermally conductive, and a structurally rigid material. In one embodiment, the electrically insulative, the thermally conductive, and the structurally rigid material may be a plastic composite. In another embodiment, the plastic composite may be a non-metallic plastic composite or polymer-based single-part or two-part material. In yet another embodiment, the electrically insulative, the thermally conductive, and the structurally rigid material may have the characteristics to withstand high temperatures, without losing natural properties.
The interconnector 116 is positioned on a top portion of the second cell holder 114. The interconnector 116 is configured to connect different polarities of the plurality of cells 110 using the plurality of connectors. In one embodiment, the electrical connection may include, but not limited to, a series connection, a parallel connection, and a combination of both (series and parallel) connection. In an embodiment, the interconnector 116 may include, but not limited to, a Printed Circuit Board (PCB).
The plurality of connectors is placed between the terminals of the plurality of cells 110 and the interconnector 116. A thermal interface material (not shown in the figure) may be dispensed above the interconnector 116. In one embodiment, the thermal interface material may include, but not limited to, a thermal pad, a thermal paste, a silicon pad, a gap pad, thermal grease, thermal gap filler, a phase change material, and the like. In another embodiment, the thermal interface material may include good thermal conductivity. The thermal interface material is configured to receive heat generated from the secondary battery pack 100 through the conduction process.
In one embodiment, the thermal interface material is configured to receive heat generated from terminals of the plurality of cells 110 through a conduction process, a convection process, and a radiation process. The thermal interface material is configured to transfer the heat to the top battery casing 118. The thermal interface material is compressed by the heat sink 120 to transfer the heat, which is generated from the plurality of cells 110, and the interconnector 116. The heat sink 120 is placed on a top portion of the thermal interface material. The heat sink 120 is configured to increase the heat flow away from the secondary battery pack 100. In one embodiment, the heat sink 120 acts as a guide for the insertion of the battery stack up into the housing 104.
In addition to that, housing 104 includes one or more mating fins, and the thermal interface material is dispensed to achieve effective thermal conduction from the secondary battery pack 100 to the housing 104. In one embodiment, the heat sink 120 may include, but not limited to, metal, nonmetal, structurally rigid, and thermally conductive material. The housing 104 includes one or more mating fins and a third thermal interface material is dispensed to achieve effective thermal conduction from the secondary battery pack 100 to the housing 104. The top battery casing 118 is configured to close the secondary battery pack 100 from the top. The top battery casing 118 includes a handle.
The top battery casing 118 further includes a plurality of mounting means to couple with the housing 104. In one embodiment, the plurality of mounting means may include, but not limited to, the one or more fasteners. The BMS mounting member is connected to the housing 104. In one embodiment, the BMS mounting member can be connected to the cell holder 107 depending on stack up and placement of the secondary battery pack 100.In another embodiment, the BMS mounting member can be connected to the top battery casing 118 depending on stack up and placement of the secondary battery pack 100. In yet another embodiment, the BMS mounting member can be connected to the bottom battery casing 102depending on stack up and placement of the secondary battery pack 100.
FIG. 2 illustrates an exploded view of a primary battery pack 200 according to an embodiment herein. The primary battery pack 200 includes a bottom battery casing 202, a housing 204, a plurality of cell holder sleeves 206, a cell holder 207, a plurality of cells 210, a Battery Management System (BMS) 212, a second cell holder 214, an interconnector 216, a top battery casing 218, a heat sink 220, and a plurality of connectors (not shown in the figure). The cell holder 207 includes, but not limited to, a first cell holder 208, and a second cell holder 214.The primary battery pack 200 further includes one or more vents for air circulation. The one or more vents may be positioned on the housing204.In one embodiment; the primary battery pack 200 may/may not include the second cell holder 214.
The bottom battery casing 202 includes a plurality of mounting means. In one embodiment, the plurality of mounting means may include the one or more fasteners to couple the bottom battery casing 202 to the housing 204. The plurality of mounting means configured to couple the bottom battery casing 202 with the housing 204. In one embodiment, the plurality of mounting means may include a one or more fasteners to couple the bottom battery casing 202 to the housing 204.In one embodiment, the one or more fasteners include, but not limited to, screws, nails, nuts, bolts, washers, anchors, and rivets. In one embodiment, the housing 204 is made up of a thermally conductive material to increase the rate of heat transfer from the primary battery pack 200 to the surroundings. In another embodiment, the housing 204 is made by casting processing or sheet metal process and the like. In one embodiment, the thermally conductive material may include, but not limited to, aluminum. In another embodiment, the thermally conductive material may be a metal or non-metal-like composite. The housing 204 acts as a wall of the primary battery pack 200.
In one embodiment, the housing 204 includes the plurality of fins to transfer the heat generated by the primary battery pack 200. The plurality of cell holder sleeves 206 is configured to support and hold the first cell holder 208, and the second cell holder 214 along with the plurality of cells 210. In one embodiment, the plurality of cell holder sleeves 206 is configured to support and hold the first cell holder 208, the second cell holder 214, and the interconnector 216 along with the plurality of cells 210. In yet another embodiment, the plurality of cell holder sleeves 206 is configured to support and hold the first cell holder 208, the second cell holder 214, and the interconnector 216 along with the plurality of cells 210 using the one or more fasteners. In one embodiment, the one or more fasteners include, but not limited to, screws, nails, nuts, bolts, washers, anchors, and rivets.
The interconnector 216 is positioned on a top portion of the second cell holder 214. In one embodiment, the plurality of cell holder sleeves 206 may include, but not limited to, metal or non-metal. The plurality of cell holder sleeves 206 may include an insulation layer around to avoid short-circuiting. The first cell holder 208 is positioned on a top portion of the bottom battery casing 202. The first cell holder 208 includes the plurality of cavities and is configured to hold the plurality of cells 210 in a predetermined position.
In one embodiment, the first cell holder 208 may be an electrically insulative, a thermally conductive, and a structurally rigid material. In another embodiment, the electrically insulative, the thermally conductive, and the structurally rigid material may be a plastic composite. In yet another embodiment, the plastic composite may be a non-metallic plastic composite or polymer-based single-part or two-part material. In yet another embodiment, the electrically insulative, the thermally conductive, and the structurally rigid material may have the characteristics to withstand high temperatures, without losing natural properties.
The plurality of cells 210 is positioned on a top portion of the first cell holder 208. In one embodiment the plurality of cells 210 is positioned on the plurality of cavities of the first cell holder 208.In another embodiment, the plurality of cells 210 may include, but not limited to, nickel cadmium, alkaline, nickel metal hydride (NIMH), lithium-ion, nickel hydrogen, nickel-zinc, lithium iron phosphate battery (Life PO) or LFP (lithium ferrophosphate), sodium ion, electro-chemical cells, and the like. The first cell holder 208 is configured to provide a predetermined space between the bottom battery casing 202 and the bottom surface of the plurality of cells 210.
The BMS 212 is configured to protect the primary battery pack 200 from being overcharged. The BMS 212 is configured to monitor the temperature level of the plurality of cells 210. The BMS 212 is configured to monitor the voltage levels of each of the plurality of cells 210. In further, the primary battery pack 200 includes a BMS mounting member (as shown in Figure 3) to hold the BMS 212. In one embodiment, the BMS mounting member acts as a heat sink for the BMS 212 to absorb heat from the BMS 212 and transfer to the housing 204.The BMS 212 is mounted on a top portion of the BMS mounting member. The BMS mounting member is fastened with a casing of the primary battery pack 200.
In one embodiment, the BMS mounting member may include, but not limited to, metal, nonmetal, structurally rigid, and thermally conductive material. The BMS mounting member includes a first set of openings and a second set of openings. The first set of openings is configured to pour the first layer. The second set of openings is configured to pour the second layer. In one embodiment, the first set of openings and the second set of openings are positioned at a predetermined height of the primary battery pack 200. The BMS mounting member further includes a plurality of mounting points to couple the BMS mounting member to the BMS 212.The BMS mounting member is coupled to the housing 204 using the one or more fasteners. In one embodiment, the one or more fasteners include, but not limited to, screws, nails, nuts, bolts, washers, anchors, and rivets.
The second cell holder 214 is positioned on a top portion of the plurality of cells 210.The second cell holder 214 includes a plurality of cavities and is configured to hold the plurality of cells 210 in a predetermined position. The second cell holder 214 may be an electrically insulative, a thermally conductive, and a structurally rigid material. In another embodiment, the electrically insulative, the thermally conductive, and the structurally rigid material may be a plastic composite. In yet another embodiment, the plastic composite may be a non-metallic plastic composite or polymer-based single-part or two-part material. In yet another embodiment, the electrically insulative, the thermally conductive, and the structurally rigid material may have the characteristics to withstand high temperatures, without losing natural properties.
The interconnector 216 is positioned on a top portion of the second cell holder 214. The interconnector 216 is configured to connect different polarities of the plurality of cells 210 using the plurality of connectors. In one embodiment, the electrical connection may include, but not limited to, a series connection, a parallel connection, and a combination of a series and a parallel connection. In an embodiment, the interconnector 216 may include, but not limited to, a Printed Circuit Board (PCB).
The plurality of connectors is placed between the terminals of the plurality of cells 210 and the interconnector 216.Athermal interface material (not shown in the figure) may be dispensed above the interconnectors 216.In one embodiment, the thermal interface material may include, but not limited to, a thermal pad, a thermal paste, a silicon pad, a gap pad, a thermal grease, a thermal gap filler, and the like. In another embodiment, the thermal interface material may include good thermal conductivity. The thermal interface material is configured to receive the heat generated from the primary battery pack 200 through the conduction process.
In one embodiment, the thermal interface material is configured to receive the heat generated from terminals of the plurality of cells 210 through the conduction process. The thermal interface material is configured to transfer the heat to the top battery casing 218. The thermal interface material is compressed by the heat sink 220 to transfer the heat which is generated from the plurality of cells 210, and the interconnector 216. The heat sink 220 is placed on a top portion of the thermal interface material. The heat sink 220 is configured to increase the heat flow away from the primary battery pack 200. In one embodiment, the heat sink 220 acts as a guide for an insertion of the battery stack up into the housing 204.
In addition to that, the housing 204 includes one or more mating fins, and the thermal interface material is dispensed to achieve effective thermal conduction from the secondary primary pack 200 to the housing 204.In one embodiment, the heat sink 220 may include, but not limited to, metal, nonmetal, structurally rigid, and thermally conductive material. The housing 204 includes one or more mating fins and a third thermal interface material is dispensed to achieve effective thermal conduction from the primary battery pack 200 to the housing 204. The top battery casing 218 is configured to close the primary battery pack 200 from the top.
The top battery casing 218 includes a plurality of mounting means to couple with the housing 204. In one embodiment, the mounting means may include, but not limited to, one or more fasteners. The BMS mounting member is connected to the housing 204. In one embodiment, the BMS mounting member can be connected to the cell holder 207 depending on stack up and placement of the primary battery pack 200. In another embodiment, the BMS mounting member can be connected to the top battery casing 218 depending on stack up and placement of the primary battery pack 200. In yet another embodiment, the BMS mounting member can be connected to the bottom battery casing 202 depending on stack up and placement of the primary battery pack 200.
FIG. 3A illustrates a rear view of the first cell holder 108, and 3B illustrates a front view of the first cell holder 108 according to an embodiment herein. The first cell holder 108 is positioned on the bottom battery casing 102 of the secondary battery pack 100. The plurality of cells 110 is positioned on the first cell holder 108. The first layer is dispensed to a predetermined height of the bottom battery casing 102 of the secondary battery pack 100.The first cell holder 108 and the plurality of cells 110 are placed into the bottom battery casing 102 of the secondary battery pack 100 in such a way that the first layer is in contact with the surface of the plurality of cells 110 to dissipate the heat from the plurality of the cells 110.
The first cell holder 108 may be an electrically insulative, a thermally conductive, and a structurally rigid material. In one embodiment, the electrically insulative, the thermally conductive, and the structurally rigid material may be a plastic composite. In another embodiment, the plastic composite may be a non-metallic plastic composite or polymer-based single-part or two-part material. In yet another embodiment, the electrically insulative, the thermally conductive, and the structurally rigid material may have the characteristics to withstand high temperatures, without losing natural properties.
In one embodiment, the plurality of cells 110 may include, but not limited to, nickel cadmium, alkaline, nickel metal hydride (NIMH), lithium-ion, nickel hydrogen, nickel-zinc, sodium ion, lithium iron phosphate (Life PO) or LFP (lithium ferrophosphate), electro-chemical cells, and the like. The first cell holder 108 is configured to provide a predetermined space between the bottom battery casing 102 and the bottom surface of the plurality of cells 110.
In addition to that, the first cell holder 108 includes a plurality of guiding profiles 302, a plurality of fastening profiles 304, a plurality of cavities 306, a plurality of weight-reducing structures 308, a plurality of channels 310, and a plurality of openings 312. The plurality of guiding profiles 302 is configured to fix the first cell holder 108 into the bottom battery casing 102 of the secondary battery pack 100. The plurality of guiding profiles 302 is positioned on a predetermined location of the first cell holder 108. In one embodiment, the predetermined location of the first cell holder 108 may be positioned at a lengthwise side, and a widthwise side of the first cell holder 108.
The plurality of fastening profiles 304 is configured to provide a space for the plurality of cell holder sleeves 106 to couple the first cell holder 108 to one or more components of the secondary battery pack 100. The plurality of fastening profiles 304 is configured to provide the space for one or more fasteners to couple the first cell holder 108 to one or more components of the secondary battery pack 100. In one embodiment, the plurality of cell holder sleeves 106 may include an arrangement to fix one or more fasteners. The one or more fasteners configured to be fixed on the arrangement that is placed inside the plurality of cell holder sleeves 106 to couple the first cell holder 108 to the one or more components of the secondary battery pack 100. In one embodiment, the one or more components of the secondary battery pack 100 may include, but not limited to, the second cell holder 114, the plurality of cells 110, and the interconnector 116.
The plurality of fastening profiles 304 supports and holds the first cell holder 108, the second cell holder 114 along with the plurality of cells 110 using the plurality of cell holder sleeves 106. In one embodiment, the plurality of cell holder sleeves 106 supports and holds the first cell holder 108, the second cell holder 114, and the interconnector 116 along with the plurality of cells 110. In one embodiment, the plurality of fastening profiles 304 placed in a predetermined location of the first cell holder 108. In another embodiment, the predetermined location of the plurality of fastening profiles 304 may include, but not limited to, a front portion and a rear portion of the first cell holder 108.
The plurality of cavities 306 is configured to hold the plurality of cells 110 in a predetermined position. The plurality of cavities 306 is in a predetermined shape. In one embodiment, the predetermined shape of the plurality of cavities 306 may include, but not limited to, a cylindrical shape. In another embodiment, the predetermined shape of the plurality of cavities 306 may vary based on the shape of the plurality of cells 110. In another embodiment, the shape of the plurality of cells 110 may include, but not limited to, a cylindrical shape, a prismatic shape, and a pouch shape. Furthermore, each plurality of cavities 306 includes a plurality of holding structures 314 to hold the plurality of cells 110. In one embodiment, the plurality of holding structures 314 in a predetermined shape. In another embodiment, the predetermined shape of the plurality of holding structures 314 may include, but not limited to, an arc shape. In one embodiment, the plurality of holding structures 314 is positioned on a circumference of the plurality of cavities 306. In another embodiment, the plurality of holding structures 314 is positioned from a bottom side of the first cell holder 108 of the secondary battery pack 100. In yet another embodiment, the plurality of holding structures 314 projects inclined upward to hold the plurality of cells tightly and securely 110 in the first cell holder 108.
The plurality of weight-reducing structures 308 positioned in the first cell holder 108 of the secondary battery pack 100 to remove material to reduce the weight of the first cell holder 108. In one embodiment, the plurality of weight-reducing structures 308 configured to support easy flow of the first layer on the first cell holder 108. The plurality of weight-reducing structures 308 positioned on a front portion of the first cell holder 108, and a rear portion of the first cell holder 108.
The first cell holder 108 further includes the plurality of channels 310. The plurality of channels 310 configured to help easy flow and equal distribution of the first layer to the plurality of cavities 306. The equally distributed first layer enables better contact between the first layer and an axial and a circumferential surface of the plurality of the cells 110.In one embodiment, the plurality of channels 310 is in a predetermined shape. In another embodiment, the predetermined shape of the plurality of the channels 310 may include, but not limited to, a concave shape, a bridge shape, and an arc shape. The plurality of channels310 is configured to material reduction. In one embodiment, the plurality of channels 310 includes a predetermined depth which allows the first layer to be filled within the first cell holder 108.
Furthermore, the plurality of channels 310further includes a plurality of openings 312. The plurality openings 312 act as one or more vents to allow air bubbles into the surroundings. The plurality of openings 312 are arranged in such a way to allow the air bubbles into the surroundings. In one embodiment, the plurality of channels 310may be one or more projections. The one or more projections act as channels for material flow depending on profile shape.
In addition to that, the first cell holder 108 includes one or more supporting members 316. The one or more supporting members 316 is configured to maintain a predetermined gap between the bottom battery casing 102 and the first cell holder 108 to allow easy flow of the first layer. The one or more supporting members 316 are projected towards the bottom battery casing 102. In one embodiment, the one or more supporting members 316 include one or more shapes. In one embodiment, the one or more shapes of the one or more supporting members 316 include, but not limited to a circular shape, a rectangular shape, and a bead shape. In one embodiment, the one or more shapes of the one or more supporting members 316 support the easy flow of the first layer by reducing the resistance due to the one or more shapes.
In addition to that, the plurality of openings 312 configured for weight reduction and strong material bonding by pouring the first layer and providing provisions to release air bubbles and a flow passage for the material. The plurality of openings 312 configured to ensure fluid flows through each of the plurality of cells 110 and wets at least one of the axial and the circumferential surface of the plurality of cells 110 and the bottom battery casing 102. When material cures, channels also act as good bonding and non-separable feature.
FIG.3C illustrates a sectional view of the one or more supporting members 316 of the first cell holder 108 according to an embodiment herein. The first cell holder 108 includes the one or more supporting members 316. The one or more supporting members 316 are configured to maintain the predetermined gap between the bottom battery casing 102 and the first cell holder 108 to allow easy flow of the first layer. The one or more supporting members 316 are projected towards the bottom battery casing 102.
FIG. 4A illustrates a rear view of the first cell holder 108 with a straight flow path 418, and 4B illustrates a front view of the first cell holder 108 with the straight flow path 418 according to an embodiment herein. The first cell holder 108 is positioned on the bottom battery casing 102 of the secondary battery pack 100. The plurality of cells 110 is positioned on the first cell holder 108. The first layer is dispensed to a predetermined height of the bottom battery casing 102 of the secondary battery pack 100. The first cell holder 108 and the plurality of cells 110 are placed into the bottom battery casing 102 of the secondary battery pack 100 in such a way that the first layer is in contact with the surface of the plurality of cells 110 to dissipate the heat from the plurality of the cells 110.
The first cell holder 108 may be an electrically insulative, a thermally conductive, and a structurally rigid material. In one embodiment, the electrically insulative, the thermally conductive, and the structurally rigid material may be a plastic composite. In another embodiment, the plastic composite may be a non-metallic plastic composite or polymer-based single-part or two-part material. In yet another embodiment, the electrically insulative, the thermally conductive, and the structurally rigid material may have the characteristics to withstand high temperatures, without losing natural properties.
In one embodiment, the plurality of cells 110 may include, but not limited to, nickel cadmium, alkaline, nickel metal hydride (NIMH), lithium-ion, nickel hydrogen, nickel-zinc, lithium iron phosphate (Life-PO) or LFP (lithium ferrophosphate), sodium ion, electro-chemical cells, and the like. The first cell holder 108 is configured to provide the predetermined space between the bottom battery casing 102 and the bottom surface of the plurality of cells 110.
In addition to that, the first cell holder 108 includes a plurality of guiding profiles 402, a plurality of fastening profiles 404, a plurality of cavities 406, a plurality of weight reducing structures 408, a plurality of channels 410, and a plurality of openings 412. The plurality of guiding profiles 402 is configured to fix the first cell holder 108 into the bottom battery casing 102 of the secondary battery pack 100. The plurality of guiding profiles 402 is positioned on a predetermined location of the first cell holder 108. In one embodiment, the predetermined location of the first cell holder 108 may be positioned at a lengthwise side, and a widthwise side of the first cell holder 108.
The plurality of fastening profiles 404 is configured to provide a space to the plurality of cell holder sleeves 106 to couple the first cell holder 108 to one or more components of the secondary battery pack 100. The plurality of fastening profiles 404 is configured to provide the space for one or more fasteners to couple the first cell holder 108 to one or more components of the secondary pack 100. In one embodiment, the plurality of cell holder sleeves 106 may include an arrangement to fix one or more fasteners. The one or more fasteners will be fixed on the arrangement that is placed inside the plurality of cell holder sleeves 106 to couple the first cell holder 108 to one or more components of the secondary battery pack 100. In one embodiment, the one or more components of the secondary battery pack 100 may include, but not limited to, the second cell holder 114, the plurality of cells 110, and the interconnector 116. The plurality of fastening profiles 404 supports and holds the first cell holder 108, the second cell holder 114 along with the plurality of cells 110. In one embodiment, the plurality of cell holder sleeves 106 supports and holds the first cell holder 108, the second cell holder 114, and the interconnector 116 along with the plurality of cells 110. In one embodiment, the plurality of fastening profiles 404 placed in a predetermined location of the first cell holder 108. In another embodiment, the predetermined location of the plurality of fastening profiles 304 may include, but not limited to, a front portion and a rear portion of the first cell holder 108.
The plurality of cavities 406 is configured to hold the plurality of cells 110 in a predetermined position. The plurality of cavities 406 is in a predetermined shape. In one embodiment, the predetermined shape of the plurality of cavities 406 may include, but not limited to, a cylindrical shape. In another embodiment, the predetermined shape of the plurality of cavities 406 may vary based on the shape of the plurality of cells 110. In another embodiment, the shape of the plurality of cells 110 may include, but not limited to, a cylindrical shape, a prismatic shape, and a pouch shape. Furthermore, each plurality of cavities 402 includes a plurality of holding structures 414 to hold the plurality of cells 110. In one embodiment, the plurality of holding structures 414 is in a predetermined shape. In another embodiment, the predetermined shape of the plurality of holding structures 414 may include, but not limited to, an arc shape. In one embodiment, the plurality of holding structures 414 is positioned on a circumference of the plurality of cavities 406. In another embodiment, the plurality of holding structures 414 are positioned from the bottom side of the first cell holder 108 of the secondary battery pack 100.In yet another embodiment, the plurality of holding structures 314 projects inclined upward to hold the plurality of cells 110 tightly and securely in the first cell holder 108.
The plurality of weight-reducing structures 408 positioned in the first cell holder 108 of the secondary battery pack 100 to remove material to reduce the weight of the first cell holder 108. In one embodiment, the plurality of weight-reducing structures 408 configured to support the flow of the first layer through the plurality of channels 410 and make proper contact with the surface of the plurality of cells 110. The plurality of weight-reducing structures 408 positioned on the front portion of the first cell holder 108, and the rear portion of the first cell holder 108.
The first cell holder 108 further includes a plurality of channels 410. The plurality of channels 410 is configured to help the easy flow and equal distribution of the first layer to the plurality of cavities 406.The equally distributed first layer enables better contact between the first layer and the axial surface of the plurality of the cells 110. In one embodiment, the plurality of channels 410 is in a predetermined shape. In another embodiment, the predetermined shape of the plurality of the channels 410 may include, but not limited to, a concave shape, a bridge shape, and an arc shape. The plurality of channels 410 is configured to material reduction. In one embodiment, the plurality of channels 410 includes a predetermined depth which allows the first layer to be filled within the first cell holder 108.
Furthermore, the plurality of channels 410 further includes a plurality of openings 412. The plurality openings 412 act as one or more vents to allow air bubbles into the surroundings. The plurality of openings 412 are arranged in such a way as to allow the air bubbles into the surroundings. In one embodiment, the plurality of channels 410 may be one or more projections. The one or more projections act as channels for material flow depending on profile shape.
In addition to that, the first cell holder 108 includes one or more supporting members 416. The one or more supporting members 416 is configured to maintain a predetermined gap between the bottom battery casing 102 and the first cell holder 108 to allow easy flow of the first layer. The one or more supporting members 416 are projected towards the bottom battery casing 102. In one embodiment, the one or more supporting members 416 include one or more shapes. In one embodiment, the one or more shapes of the one or more supporting members 416 include, but not limited to a circular shape, a rectangular shape, and a bead shape. In one embodiment, the one or more shapes of the one or more supporting members 416 support the easy flow of the first layer by reducing the resistance due to the one or more shapes.
In addition to that, the plurality of openings412configured for weight reduction and strong material bonding by pouring the first layer and providing provisions to release air bubbles and a flow passage for the material. The plurality of openings412configured to ensure fluid flows through each of the plurality of cells 110 and wets at least one of the axial and circumferential surfaces of the plurality of cells 110 and the bottom battery casing 102. When material cures, channels also act as good bonding and non-separable feature.
The first cell holder 108 further includes the straight flow path 418 to allow the first layer to flow in a straight line. The straight flow path 418 is configured to help better flow ability of the first layer.
In addition to that, the first cell holder 108 includes one or more supporting members 416. The one or more supporting members 416 are configured to maintain a predetermined gap between the bottom battery casing 102 and the first cell holder 108 to allow easy flow of the first layer. The one or more supporting members 416 are projected towards the bottom battery casing 102.
FIG.4C illustrates a sectional view of the straight flow path 418 of the first cell holder 108 according to an embodiment herein. The first cell holder 108 further includes the straight flow path 418 to allow the first layer to flow in a straight line. The straight flow path 418 is configured to help better flow ability of the first layer. The proposed design and functions of the first cell holder 108 may be applicable to the secondary battery pack 100, and the primary battery pack 200.
In addition to that, the first cell holder 108 includes the supporting member 416.The one or more supporting members 416 configured to maintain the predetermined gap between the bottom battery casing 102 and the first cell holder 108 to allow easy flow of the first layer. The one or more supporting member 416 projected towards the bottom battery casing 102.
In an embodiment, the second cell holder 114 may include a plurality of guiding profiles 302, a plurality of fastening profiles 304, a plurality of cavities 306, a plurality of weight-reducing structures 308, a plurality of channels 310, and a plurality of openings 312.
The plurality of channels 310 further includes a plurality of openings 312. The plurality openings 312 act as one or more vents to allow air bubbles into the surroundings. The plurality openings 312 are arranged in such a way to allow the air bubbles into the surroundings. In addition to that, the second cell holder 114 includes one or more supporting members316. The one or more supporting members 316 are configured to maintain a predetermined gap between the bottom battery casing 102 and the second cell holder 114 to allow easy flow of the first layer. The first layer is dispensed to a predetermined height of the bottom battery casing 102 of the secondary battery pack 100. The second cell holder 114 and the plurality of cells 110 are placed into the bottom battery casing 102 of the secondary battery pack 100 in such a way that the first layer is in contact with the surface of the plurality of cells 110 to dissipate the heat from the plurality of the cells 110.

The plurality of channels 310 further includes a plurality of openings 312. The plurality of openings 312 act as one or more vents to allow air bubbles into the surroundings.
The plurality of openings 312 are arranged in such a way to allow the air bubbles into the surroundings. In addition to that, the second cell holder 114 includes one or more supporting members316. The one or more supporting members 316 are configured to maintain a predetermined gap between the bottom battery casing 102 and the second cell holder 114 to allow easy flow of the first layer and release the air bubbles into the surroundings from the secondary battery pack 100.
The second cell holder 114 further includes the straight flow path 418 to allow the first layer to flow in a straight line. The straight flow path 418 is configured to help better flow ability of the first layer. The proposed design and functions of the second cell holder 114 may be applicable to the secondary battery pack 100, and the primary battery pack 200.
The proposed invention helps to dispense the first layer to a predetermined height of the bottom battery casing 102 of the secondary battery pack 100. The first cell holder 108 and the plurality of cells 110 are placed into the bottom battery casing 102 of the secondary battery pack 100 in such a way that the first layer is in contact with the surface of the plurality of cells 110 to dissipate the heat from the plurality of the cells 110.The one or more supporting members 316 are configured to maintain a predetermined gap between the bottom battery casing 102 and the first cell holder 108 to allow easy flow of the first layer and release the air bubbles into the surroundings from the secondary battery pack 100.
The foregoing description of the specific embodiments will so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the scope of the embodiments as described herein.

LIST OF REFERENCE NUMERALS

100, 200: Battery pack
100: Secondary battery pack
200: Primary battery pack
102, 202: Bottom battery casing
104, 204: Housing
106, 206: Plurality of cell holder sleeves
107, 207: Cell holder
108, 208: First cell holder
110, 210: Plurality of cells
112, 212: BMS
114, 214: Second cell holder
116, 216: Interconnector
118, 218: Top battery casing
120, 220: Heat sink
302, 402: Plurality of guiding profiles
304, 404: Plurality of fastening profiles
306, 406: Plurality of cavities
308, 408: Plurality of weight-reducing structures
310, 410: Plurality of channels
312, 412: Plurality of openings
314, 414: Plurality of holding structures
316, 416: One or more supporting members
418: Straight flow path
,CLAIMS:1. A cell holder (107, 207) of a battery pack (100, 200), wherein the cell holder (107, 207) comprises a first cell holder (108, 208) and a second cell holder (114, 214), wherein the cell holder (107, 207) is configured to provide a predetermined space between the bottom battery casing (102) and the bottom surface of the plurality of cells (110), comprising: a plurality of guiding profiles (302) configured to fix the cell holder (107,207) into the bottom battery casing (102) of the battery pack (100, 200); a plurality of fastening profiles (304) configured to provide space for a plurality of cell holder sleeves (106) to couple the cell holder (107, 207) to one or more components of the battery pack (100, 200), wherein the plurality of fastening profiles (304) configured to provide space for one or more fasteners to couple the cell holder (107, 207) to one or more components of the battery pack (100, 200), wherein the plurality of cell holder sleeves (106) comprise an arrangement to fix one or more fasteners; a plurality of cavities (306) configured to hold a plurality of cells (110) in a predetermined position, wherein the plurality of cavities (306) is in a predetermined shape, wherein the plurality of cavities (306) comprises a plurality of holding structures (314) to hold the plurality of cells (110), wherein the plurality of holding structures (314) is in a predetermined shape; wherein the plurality of holding structures (314) positioned on a circumference of the plurality of cavities (306), wherein the plurality of holding structures (314) positioned from a bottom side of the cell holder (107, 207) of the battery pack (100, 200); a plurality of weight-reducing structures (308) positioned on the cell holder (107, 207) of the battery pack (100, 200) to remove material to reduce the weight of the cell holder (107, 207), wherein the plurality of weight-reducing structures (308) configured to support easy flow of a conductive layer on the cell holder (107, 207), wherein the plurality of weight-reducing structures (308) positioned on a front portion of the cell holder (107, 207), and a rear portion of the cell holder (107, 207); and a plurality of channels (310) is configured to help easy flow and equal distribution of a first layer to the plurality of cavities (306), wherein the plurality of channels (310) is in a predetermined shape, wherein the plurality of channels (310) is configured to reduce material, wherein the plurality of channels (310) comprises a predetermined depth which allows the first layer to be filled within the cell holder (107, 207), wherein the equally distributed first layer enables better contact between the first layer and an axial and a circumferential surface of the plurality of the cells (110).
2. The cell holder (107, 207) of a battery pack (100, 200) as claimed in claim 1, wherein the cell holder (107, 207) comprises an electrically insulative, a thermally conductive, and a structurally rigid material.
3. The cell holder (107, 207) of a battery pack (100, 200) as claimed in claim 2, wherein the electrically insulative, the thermally conductive and the structurally rigid material comprises a plastic composite, wherein the plastic composite comprises a non-metallic plastic composite or polymer-based single-part or two-part material.
4. The cell holder (107,207) of a battery pack (100, 200) as claimed in claim 1, wherein the one or more fasteners configured to be fixed on the arrangement that is placed inside the plurality of cell holder sleeves (106) to couple the cell holder (107, 207) to one or more components of the battery pack (100, 200), wherein the one or more components of the battery pack (100, 200) comprises a second cell holder (114), the plurality of cells (110), and an interconnector (116).
5. The cell holder (107, 207) of a battery pack (100, 200) as claimed in claim 1, wherein the cell holder (107, 207) of a battery pack (100, 200) further comprises one or more supporting members (316), wherein the one or more supporting members (316) are configured to maintain a predetermined gap between the plurality of cells (110) to allow easy flow of the first layer.
6. The cell holder (107, 207) of the battery pack (100, 200) as claimed in claim 5, wherein the one or more supporting members (316) comprises one or more shapes, wherein the one or more supporting members (316) are configured to help easy flow of the first layer.
7. The cell holder (107, 207) of a battery pack (100, 200) as claimed in claim 1, wherein the plurality of channels (310) comprises a plurality of openings (312), wherein the plurality of openings (312) arranged in a manner that allows the air bubbles into surroundings, wherein the plurality of openings (312) configured for weight reduction and material bonding, and provide provisions to release air bubbles, and a flow passage for material, wherein the plurality of openings (312) configured to ensure fluid flows through each of the plurality of cells (110) and wets at least one of the axial and the circumferential surface of the plurality of cells (110) and the bottom battery casing (102).
8. The cell holder (107, 207) of a battery pack (100, 200) as claimed in claim 1, wherein the plurality of fastening profiles (304) supports and holds the first cell holder (108, 208), the second cell holder (114, 214) along with the plurality of cells (110) using the plurality of cell holder sleeves (106), wherein the plurality of cell holder sleeves (106) supports and holds between the first cell holder (108, 208), the second cell holder (114, 214), and the interconnector (116) along with the plurality of cells (110).
9. The cell holder (107, 207) of the battery pack (100, 200) as claimed in claim 1, wherein the plurality of fastening profiles (304) placed in a predetermined location of the cell holder (107, 207), wherein the predetermined location of the plurality of fastening profiles (304) comprises a front portion and a rear portion of the cell holder (107, 207).
10. The cell holder (107, 207) of the battery pack (100, 200) as claimed in claim 1, wherein the plurality of guiding profiles (302) positioned on a predetermined location of the cell holder (107, 207), wherein the predetermined location of the cell holder (107, 207) is positioned at a lengthwise side, and a widthwise side of the cell holder (107, 207).
11. The cell holder (107, 207) of the battery pack (100, 200) as claimed in claim 1, where in the predetermined shape of the plurality of cavities (306) comprises a cylindrical shape.
12. The cell holder (107, 207) of the battery pack (100, 200) as claimed in claim 1, where in the predetermined shape of the plurality of cavities (306) varied based on a shape of the plurality of cells (110), wherein the shape of the plurality of the cells (110) comprises a cylindrical shape, a prismatic shape, and a pouch shape.
13. The cell holder (107, 207) of the battery pack (100, 200) as claimed in claim 1, wherein the predetermined shape of the plurality of the channels (310) comprises a concave shape, a bridge shape, and an arc shape.
14. The cell holder (107, 207) of the battery pack (100, 200) as claimed in claim 1, wherein the cell holder (107, 207) further includes the straight flow path (418) to allow the first layer to flow in a straight line, wherein the straight flow path (418) is configured to help better flow ability of the first layer.