DESC:TECHNICAL FIELD
[001] The present subject matter relates to a battery pack in a vehicle, more particularly, to mitigation of thermal runaway in the battery pack.
BACKGROUND
[002] The impending threats of global warming and climate change has motivated users to switch from conventional internal combustion engine-based vehicles to electric vehicles or hybrid electric vehicles in order to reduce the pollution. Furthermore, the manufacturers are producing electric vehicles which can minimize the emission of pollutants in the environment. However, the batteries used in electric vehicles have a limited capacity and provides limited safety after certain period of usage. Hence, an improved battery design for electric vehicles is required.
BRIEF DESCRIPTION OF THE DRAWINGS
[003] The present invention is described with reference to figures. This invention is implementable in two-wheeled vehicles/three-wheeled vehicles or four-wheeled vehicles. The same numbers are used throughout the drawings to reference like features and components. Further, the inventive features of the invention are outlined in the appended claims.
[004] Figure 1a illustrates a perspective view of a power energy module (battery pack) of a vehicle comprising an insulating material, in accordance with an embodiment of the present subject matter.
[005] Figure 1b illustrates a top view of the battery pack of the vehicle comprising the insulating material and interconnectors, in accordance with an embodiment of the present subject matter.
[006] Figure 2 illustrates a perspective view of the insulating material in a cell holder in the battery pack, in accordance with an embodiment of the present subject matter.
[007] Figure 3a illustrates a top view of the insulating material, in accordance with an embodiment of the present subject matter.
[008] Figure 3b illustrates a front view of the insulating material, in accordance with an embodiment of the present subject matter.
[009] Figure 3c illustrates an exploded view of the insulating material, in accordance with an embodiment of the present subject matter.
[010] Figure 3d illustrates a perspective view of the insulating material, in accordance with an embodiment of the present subject matter.
[011] Figure 4 illustrates a side view of the insulating material in the battery pack, in accordance with an embodiment of the present subject matter.

DETAILED DESCRIPTION
[012] Pollution from internal combustion engines has become a significant concern in recent times. Road transport vehicles generate large amount of pollutants which harms the environment. Efforts are being made to provide electric vehicles and hybrid electric vehicles which does not discharge harmful emissions. Electric vehicles provide a means for transportation that do not emit any substantial pollutant as they run on batteries.
[013] The batteries are composed of individual cells arranged in series and parallel to provide a battery pack. Conventionally, during running condition of electric vehicles, the battery supplies power to the motor to run the vehicle. However, a large amount of heat is generated in the battery during the interval of power supply from the battery to external loads.
[014] This large amount of heat being generated during power supply in the battery often leads to a significant rise in temperature of the battery. Further, when this high heat energy is not being able to be dissipated in the environment, the temperature of the battery increases rapidly and often the battery explodes which threatens not only the safety of a rider but also the safety of the people nearby. This rapid increase in battery temperature and high heat generation is called as thermal runaway.
[015] In order to prevent such thermal runaway, a phase change material (PCM) is inserted inside the battery pack to provide insulation. The PCM changes from solid state to fluid state when the battery achieves certain higher temperature. However, the PCM gets distributed unevenly due to the temperature difference and heat generation difference across each row of cells inside the battery pack.
[016] Furthermore, the cells connected in parallel acting as voltage terminals gets heated up faster as it is the connecting point in the battery of power supply to external loads. This leads to quick increase in temperature of the voltage terminals of the battery pack than other regions of the battery pack. Therefore, location specific heat control becomes necessary inside the battery pack to prevent thermal runaway from one location to another location inside the battery pack. However, once the temperature of one row of cells increases, it further leads to heat dissipation across neighboring cell rows as well. This difference in temperature leads to uneven heat distribution and thereby causes the PCM to melt rapidly in certain locations inside the battery pack and remains in solid state in some parts of the battery pack. This in turn leads to uneven cooling of the battery pack.
[017] Conventionally, an insulating layer is placed between each of the rows of cells in a battery pack to arrest the thermal runaway. However, these insulated layers are quite thick and acquires a lot of space in the battery when placed after each individual row of cells. This is turn increases the size and the weight of the battery. Therefore, assembly of an enormous battery is a huge problem in a two wheeled vehicle which already has limited space.
[018] Furthermore, in some conventional designs, an insulating holder is provided to accommodate individual cells inside the holder. This arrangement provides sufficient rigidity to each of the cells but it also acquires a large amount of space inside the battery pack. Furthermore, the holder is capable of accommodating cells of a particular dimension only. Thus, this customized holder is not suitable for all types of cells and further increases the cost of the battery pack. Furthermore, the holder lead to localization of heat inside each holder which in turn leads to uneven temperature difference between each cell inside the battery pack and therefore affects the efficient functioning of the battery and the life of the battery.
[019] Further, all the cells in the battery pack are connected with the help of interconnectors. These interconnectors connect the cells in order to provide a uniform supply of power across all the series and parallel connections of the battery pack and further provide an overall positive and negative terminal from the battery pack to be connected to the external loads. In the conventional designs of battery packs with holder being made of insulating material, the design and complexity of the interconnectors are huge. This complex arrangement of the interconnectors further leads to increase in cost of the battery pack.
[020] In another conventional design of a battery pack, the cells in the battery pack are arranged in certain receptacles which have customized shape and dimensions which cover the cells entirely. These receptacles are provided with insulating material and thereby prevents thermal runaway. However, under certain environmental conditions, the electrolytes in the cells react chemically which leads to expansion in the size of the cells. However, in an arrangement in which the cells are fixedly supported inside the receptacle, the cells have no space to expand and therefore there is a possibility of explosion of the battery pack due to these chemical reactions.
[021] Further, in conventional designs of the battery pack, the insulating layers are provided after each rows of cells. This not only increases the size of the battery pack but also the cost. Thus, a simplified and cost-effective and highly efficient design of an insulating layer in between the cells of the battery pack is required to mitigate the thermal runaway in the battery pack.
[022] Further, maximum amount of power is being drained from an overall positive terminal and an overall negative terminal of the battery by an external load as the overall positive terminal and the overall negative terminal is directly connected to the external load. Due to the maximum power consumption and highest current supply to the external load, a voltage imbalance is created among all cell rows. This voltage imbalance leads to creation of high resistance among the plurality of cell rows. Furthermore, very high resistance eventually leads to increase in temperature of the battery and also leads to high heat generation. Also, a higher temperature provides a conducive environment for unwanted chemical reactions among plurality of cells which generates more heat and thereby increases chances of explosion of the battery. Hence, an improved design to arrest the supply of heat among cell rows is required.
[023] Hence, it is an object of the present invention to overcome all the above stated and other related problems in mitigating the thermal runaway and preventing uneven heating inside the battery pack as well as other problems of known art.
[024] It is further an object of the present invention to reduce the size and cost of the battery pack and thereby provide a compact battery pack design.
[025] It is further an object of the present invention to provide sufficient space and support to the cells in the battery pack to expand during any chemical reaction and thereby preventing explosion of the battery pack.
[026] It is further an object of the present invention to provide an insulating layer structure which occupies less space and also provides easy connection of interconnectors with all the cells in the battery pack.
[027] It is further an object of the present invention to provide an insulating layer structure which also acts as a cell holding structure and eliminate the requirement of a complex cell holding structure.
[028] The present subject matter provides one or more heat absorbing means for a power energy module (battery pack) which is capable of mitigating thermal runaway efficiently. The one or more heat absorbing means is located between a positive terminal row and a negative terminal row which are connected by plurality of interconnectors as it causes delay in spreading of heat across the other cells of the battery pack. Therefore, the mitigation of thermal runaway is achieved and also a cost efficient and a space efficient battery pack is designed as lesser number of the one or more heat absorbing means are required to arrest heat dissipation.
[029] As per an aspect of the present invention, a power energy module comprising a plurality of cells, one or more heat absorbing means, one or more cell holders and a plurality of interconnectors. The plurality of cells is disposed on the one or more cell holders to form a plurality of cell rows. The plurality of cell rows comprises one or more sets of a positive terminal row and a negative terminal row. The plurality of interconnectors connects the positive terminal row and the negative terminal row of a set of the one or more sets of the plurality of cell rows. The one or more heat absorbing means is disposed between the positive terminal row and the negative terminal row which are connected with the plurality of interconnectors.
[030] As per another embodiment, the one or more heat absorbing means comprising a first surface, a second surface and a metallic plate are integrally attached with each other. The metallic plate is disposed between the first surface and the second surface such that shape of each of the first surface, second surface and the metallic plate conforms to each other. Further, the first surface and the second surface of the one or more heat absorbing means are made of ceramic material or intumescent material.
[031] As per another embodiment, the heat absorbing means comprises of one or more grooves on a top portion and a bottom portion of the one or more heat absorbing means. The one or more grooves accommodates at least a portion of the plurality of interconnectors. The one or more grooves have a maximum depth of 3-4 mm.
[032] As per another embodiment, the heat absorbing means comprises of one or more recesses. The one or more recesses are provided on the first surface, the metallic plate and the second surface of the one or more heat absorbing means. The one or more recesses have a profile complimenting shape of the plurality of cells and further accommodates the plurality of cells. The one or more recesses also have a maximum depth of 3-4 mm. Further, the one or more heat absorbing means is an insulating layer.
[033] As per another embodiment, the one or more cell holders of the power energy module is located at the bottom of the power energy module. The one or more cell holders receive the plurality of cells in one or more cell receiving structures. The one or more heat absorbing means is rigidly fixed in a heat absorbing receiving structure in the one or more cell holders. Further, the plurality of cells are cylindrical cells or prismatic cells.
[034] As per another aspect of the invention, a heat absorbing means is capable of mitigating thermal runaway in an energy module and the heat absorbing means comprises a first surface, a second surface, and a metallic plate. The metallic plate is disposed between the first surface and the second surface and are integrally attached to each other to form a shape that conforms to each other.
[035] As per another embodiment, the first surface and the second surface of the heat absorbing means are made up of ceramic or intumescent material. The heat absorbing means further comprises one or more grooves on a top portion and a bottom portion of the heat absorbing means which accommodate at least a portion of a plurality of interconnectors and have a maximum depth of 3-4mm.
[036] As per another embodiment, the heat absorbing means comprises one or more recesses on the first surface, the metallic plate and the second surface. The one or more recesses have a maximum depth of 3-4mm and have a profile that complements shape of a plurality of cells and accommodates the plurality of cells.
[037] In accordance with the present configuration, one of the advantages is the arrangement of the one or more heat absorbing means between the positive and the negative cell terminals being connected by interconnectors which efficiently prevents the spread of heat generated across all the cell rows uniformly.
[038] In accordance with the present configuration, one of the advantages is the positioning of one or more heat absorbing means between the cells being connected by the plurality of interconnectors further reduces the number of the heat absorbing means being used in a power energy module because the heat absorbing means are being located only in between the positive and negative terminal cells which are connected by an interconnector rather than placing the heat absorbing means in between all cell rows. Therefore, this construction not only decreases the cost but also provides a compact design of the power energy module (battery pack) by reducing the weight of the power energy module.
[039] In accordance with the present configuration, one of the advantages is the construction of the heat absorbing means which has one or more recesses providing sufficient space for expansion of the cells as it complements the shape of the plurality of cells and does not cover the cells during any chemical reactions from the sides, thereby preventing any unwanted accumulation of gases and preventing explosion of the power energy module.
[040] In accordance with the present configuration, one of the advantages of the structure of the heat absorbing means having a metallic plate between the first surface and the second surface which provides rigidity to the structure of the heat absorbing means and prevents crimping of the intumescent or ceramic material on the first and the second surface at high temperatures.
[041] In accordance with the present configuration, one of the advantages of the structure of the heat absorbing means having a metallic plate between the first surface and the second surface further enables to create a fixed profile which rigidly hold plurality of cells in place and acts as a cell mold. Furthermore, the first surface and the second surface efficiently absorb heat from both the positive and negative terminal cells which connected by plurality of interconnectors and thereby eliminates the need to use heat absorbing means between each layer of one or more cell rows to absorb the heat dissipated from the cells and thereby prevent thermal runaway.
[042] The present subject matter is further described with reference to accompanying figures. It should be noted that the description and figures merely illustrate the principles of the present subject matter. Various arrangements may be devised that, although not explicitly described or shown herein, encompass the principles of the present subject matter. Moreover, all statements herein reciting principles, aspects, and examples of the present subject matter, as well as specific examples thereof, are intended to encompass equivalents thereof.
[043] The foregoing disclosure is not intended to limit the present disclosure to the precise forms or particular fields of use disclosed. As such, it is contemplated that various alternate embodiments and/or modifications to the present disclosure, whether explicitly described or implied herein, are possible in light of the disclosure. Having thus described embodiments of the present disclosure, a person of ordinary skill in the art will recognize that changes may be made in form and detail without departing from the scope of the present disclosure. Thus, the present disclosure is limited only by the claims.
[044] Additionally, all numerical terms, such as, but not limited to, “first”, “second”, “third”, “primary”, “secondary”, “main” or any other ordinary and/or numerical terms, should also be taken only as identifiers, to assist the reader's understanding of the various elements, embodiments, variations and/or modifications of the present disclosure, and may not create any limitations, particularly as to the order, or preference, of any element, embodiment, variation and/or modification relative to, or over, another element, embodiment, variation and/or modification.
[045] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
[046] Figure 1a illustrates a perspective view of a power energy module (battery pack) of a vehicle comprising an insulating material, in accordance with an embodiment of the present subject matter. Figure 1b illustrates a top view of the power energy module of the vehicle comprising the insulating material and a plurality of interconnectors, in accordance with an embodiment of the present subject matter. Figures 1a and 1b will be discussed together.
[047] A power energy module (100) is formed from a plurality of cells (102) being arranged in an interconnection of series and parallel circuits. The power energy module (100) is a battery pack in one embodiment. The plurality of cells (102) are connected in a pattern of rows and columns. The plurality of cells (102) being disposed in one or more cell holders (110) to form a plurality of cell rows (106). The first row of the plurality cell rows (106) is the overall positive terminal of the power energy module (100) as an external load is connected to the power energy module (100) through the first row of the plurality of cell rows (106). The first row of the plurality of cell rows (106) is also the terminal of high current density. The plurality of cell rows (106) includes one or more sets (118) of a positive terminal row (114) and a negative terminal row (116). The interconnection of the positive terminal row (114) and the negative terminal row (116) forms a series and a parallel connection of electrical circuits. A plurality of interconnectors (112) is configured to connect said positive terminal row (114) and said negative terminal row (116) of a set of said one or more sets of said plurality of cell rows (106) on both top and bottom portion of the power energy module (100).
[048] The power energy module (100) is further provided with a phase change material (PCM) (108). The PCM (108) converts its state from solid to fluid at high temperature. The high temperature occurs due to high heat generation during running condition of the power energy module (100). During the change of state of the PCM (108), the PCM (108) melts unevenly and spreads unevenly across the entire power energy module (100). This in turn leads to uneven cooling of the power energy module (100).
[049] The one or more cell holders (110) being situated at the top and bottom portion of the power energy module (100). The one or more cell holders (110) being configured to receive plurality of cells (102) in or more cell receiving structures (200) (as shown in figure-2). In one embodiment, the plurality of cells (102) being cylindrical in shape. In another embodiment, said plurality of cells (102) being prismatic cells.
[050] During discharge of the power energy module (100), heat dissipation occurs from all the cells inside the power energy module (100) to meet the demand of an external load. However, maximum rise in temperature occurs between the positive terminal row (114) and the negative terminal row (116) of the plurality of cell rows (106) which have been connected by a plurality of interconnectors (112).
[051] In one embodiment, the plurality of cells (102) being cylindrical in shape and having a capacity of around 3.2 Ah, a large number of such plurality of cells (102) are required to assemble a power energy module (100) of higher capacity. In such circumstances, a plurality of one or more heat absorbing means (104) are inserted between each positive and negative terminals of plurality of cells (102) being connected in a cell row further being connected by the interconnector (112).
[052] In another embodiment, when the plurality of cells (102) being prismatic cells of higher capacity, only two rows of said prismatic cells are required to achieve the power requirement of the power energy module (100). In such circumstances, only one row of positive terminals (114) of said prismatic cells is connected through the plurality of interconnectors (112) with only one negative terminal row (116) of said prismatic cells. Hence, in such conditions, only one such one or more heat absorbing means (104) is inserted between the plurality of cell rows (106) to provide efficient insulation.
[053] In order to provide efficient cooling and also to prevent thermal mitigation, the one or more heat absorbing means (104) is disposed between said positive terminal row (114) and said negative terminal row (116) being connected with said plurality of interconnectors (106). During any change in environmental conditions, the electrolytes inside the plurality of cells (102) often undergo chemical reactions. These chemical reactions lead to expansion in size of the plurality of cells (102). Thus, a plurality of gaps (120) is provided in between each of plurality of cells (102) and between the one or more heat absorbing means (104). These plurality of gaps (120) provides sufficient space for expansion of the plurality of cells (102) without any damage to the connections and also does not alter the size and dimensions of the power energy module (100). The plurality of interconnectors (112) is further disposed on the one or more heat absorbing means (104) and thereby averts the requirement of any complex circuit connections.
[054] Figure 2 illustrates a perspective view of an insulating material in the cell holder, in accordance with an embodiment of the present subject matter. The one or more heat absorbing means (104) is disposed between the positive terminal row (114) and the negative terminal row (116) being connected with said plurality of interconnectors (112) in a cut-out portion of a heat absorbing receiving structure (202). The one or more heat absorbing means (104) has curved profile on both the sides to accommodate plurality of cells (102). Furthermore, the one or more heat absorbing means (104) is accommodated between the plurality of cells (102) in such a manner in order to allow to gaps and space between each individual cell among the plurality of cells (102) in the same row.
[055] Furthermore, the plurality of cells (102) are configured to be accommodated in one or more cell receiving structures (200). The structure of the cell holder (110) provides the plurality of cells (102) to be rigidly affixed in place and also does not occupy unnecessary space along the sides which can lead to increase in weight of the power energy module (100).
[056] Figure 3a illustrates a top view of the insulating material, in accordance with an embodiment of the present subject matter. Figure 3b illustrates a front view of the insulating material, in accordance with an embodiment of the present subject matter. Figure 3c illustrates an exploded view of the insulating material, in accordance with an embodiment of the present subject matter. Figure 3d illustrates
a perspective view of the insulating material, in accordance with an embodiment of the present subject matter. For brevity, Figure 3a, Figure 3b, Figure 3c and Figure 3d will be discussed together.
[057] The one or more heat absorbing means (104) comprises of a top portion (302) and a bottom portion (306). The top portion (302) of the one or more heat absorbing means (104) extends vertically towards the bottom portion (306). (Refer figure 3b). The one or more heat absorbing means (104) comprises a first surface (308), a second surface (312) and a metallic plate (310) integrally attached to each other. The metallic plate (310) is disposed between the first surface (308) and the second surface (312). The first surface (308), the metallic plate (310) and the second surface (312) are arranged such that shape of each of the first surface (308), the second surface (312) and the metallic plate (310) conforms to each other. In one embodiment, the first surface (308) and the second surface (312) are made of ceramic material. In another embodiment, the first surface (308) and the second surface (312) are made of intumescent material. The thickness of the metallic plate (310) with respect to the first surface (308) and the second surface (312) is in the ratio of 1:1.5:1.
[058] The one or more heat absorbing means (104) having the metallic plate (310) between the first surface (308) and the second surface (312) creates a fixed profile which rigidly hold the plurality of cells (102) in place and acts as a cell mold. Furthermore, the first surface (308) and the second surface (312) efficiently absorb heat from the set of said one or more sets of said plurality of cell rows (106) and thereby eliminates the requirement to provide the one or more heat absorbing means (104) between each of the plurality of cell rows (106).
[059] The said one or more heat absorbing means (104) includes one or more grooves (300) on a top portion (302) and a bottom portion (306) of the one or more heat absorbing means (104). The one or more grooves (300) being configured to accommodate at least a portion of said plurality of interconnectors (112). The one or more grooves (300) comfortably sits the plurality of interconnectors (112) and thereby negates the need for a complicated circuit design which requires careful routing of wires around the one or more heat absorbing means (104) in order to prevent short circuiting. The one or more grooves (300) have a maximum depth of 3-4 mm.
[060] The one or more heat absorbing means (104) comprising of one or more recesses (304). The one or more recesses (304) is provided on the first surface (308), the metallic plate (310) and the second surface (312) of the one or more heat absorbing means (104). The one or more recesses (304) on both the first surface (308) and the second surface (312) creates a cell mold on both the positive terminal row (114) and said negative terminal row (116) of a set of said one or more sets of said plurality of cell rows (106) being connected by said plurality of interconnectors (112) to be insulated and prevent heat dissipation across layers. The one or more grooves (300) of the one or more heat absorbing means (104) further provides a location for the plurality of interconnectors (112) to connect with the plurality of cells (102) without any risk of short circuiting or overlapping of electrical connections.
[061] The one or more recesses (304) is provided with a shape which is configured to accommodate cells of any shape or compliments shape of any cell. In one embodiment the one or more recesses (304) is cylindrical in shape as the plurality of cells (102) are cylindrical. The one or more recesses (304) being configured to be parallel to each of said plurality of cells (102). The one or more recesses (304) is configured to have a maximum depth of 3-4 mm. The one or more recesses (304) further provides sufficient space for the expansion of the plurality of cells (102) during any chemical reaction of the electrolyte. The one or more recesses (304) extends along vertical direction from the top portion (302) to the bottom portion (306).
[062] Figure 4 illustrates a side view of the insulating material in the battery pack, in accordance with an embodiment of the present subject matter. The one or more heat absorbing means (104) is not visible to the user when viewed from the sides. In an embodiment, the rectangular profile of the one or more heat absorbing means (104) is around 2-3 mm. In another embodiment, the one or more heat absorbing means (104) is made in a profile to compliment and accommodate different sizes and shapes of the plurality of cells (102). Thus, the one or more heat absorbing means (104) efficiently saves space and does not make the battery pack bulky. Further, the power energy module (100) with such a construction can be easily accommodated in a vehicle without taking up much space or increasing the weight of a vehicle.
[063] While the present invention has been shown and described with reference to the foregoing preferred embodiments, it will be apparent to those skilled in the art that changes in form, connection, and detail may be made therein without departing from the spirit and scope of the invention.
Reference Numerals:


100 Power energy Module
102 Plurality of Cells
104 One or more heat absorbing means
106 Plurality of cell rows
108 Phase Change material
110 one or more cell holders
112 plurality of interconnectors
114 positive terminal row
116 negative terminal row
118 one or more sets of a positive terminal row and a negative terminal row
120 plurality of gaps
200 one or more cell receiving structures
202 heat absorbing receiving structure
300 One or more grooves
302 Top Portion
304 One or more recesses
306 Bottom Portion
308 First surface
310 metallic plate
312 Second surface
,CLAIMS:We Claim:
1. A power energy module (100) comprising:
a plurality of cells (102);
one or more cell holders (110);
wherein said plurality of cells (102) being disposed on said one or more cell holders (110) to form a plurality of cell rows (106); and
wherein the plurality of cell rows (106) comprising one or more sets (118) of a positive terminal row (114) and a negative terminal row (116);
a plurality of interconnectors (112);
wherein said plurality of interconnectors (112) being configured to connect said positive terminal row (114) and said negative terminal row (116) of a set of said one or more sets of said plurality of cell rows (106); and
one or more heat absorbing means (104);
wherein said one or more heat absorbing means (104) being disposed between said positive terminal row (114) and said negative terminal row (116) being connected with said plurality of interconnectors (112).
2. The power energy module (100) as claimed in claim 1, wherein said one or more heat absorbing means (104) comprising a first surface (308), a second surface (312) and a metallic plate (310) integrally attached to each other, wherein said metallic plate (310) being disposed between said first surface (308) and said second surface (312) such that shape of each of said first surface (308), said second surface (312) and said metallic plate (310) conforms to each other.
3. The power energy module (100) as claimed in claim 1, wherein said first surface (308) and said second surface (312) of said one or more heat absorbing means (104) being made of ceramic material.
4. The power energy module (100) as claimed in claim 1, wherein said first surface (308) and said second surface (312) of said one or more heat absorbing means (104) being made of intumescent material.
5. The power energy module (100) as claimed in claim 1, wherein said one or more heat absorbing means (104) comprising one or more grooves (300) on a top portion (302) and a bottom portion (306) of said one or more heat absorbing means (104), said one or more grooves (300) being configured to accommodate at least a portion of said plurality of interconnectors (112).
6. The power energy module (100) as claimed in claim 5, wherein said one or more grooves (300) having a maximum depth of 3-4 mm.
7. The power energy module (100) as claimed in claim 1, wherein said one or more heat absorbing means (104) comprising one or more recesses (304) on said first surface (308), said metallic plate (310) and said second surface (312) of said one or more one or more heat absorbing means (104)
said one or more recesses (304) having a profile complementing shape of said plurality of cells (102) and being configured to accommodate said plurality of cells (102).
8. The power energy module (100) as claimed in claim 7, wherein said one or more recesses (304) having a maximum depth of 3-4 mm.
9. The power energy module (100) as claimed in claim 1, wherein said or more heat absorbing means (104) being an insulating layer.
10. The power energy module (100) as claimed in claim 1, wherein said one or more cell holders (110) being disposed at the top and the bottom of said power energy module (100); and
wherein said one or more cell holders (110) being configured to receive said plurality of cells (102) in one or more cell receiving structures (200).
11. The power energy module (100) as claimed in claim 1, wherein said one or more heat absorbing means (104) being rigidly fixed in a heat absorbing receiving structure (202) in said one or more cell holders (110).
12. The power energy module (100) as claimed in claim 1, wherein said plurality of cells (102) being cylindrical cells.
13. The power energy module (100) as claimed in claim 1, wherein said plurality of cells (102) being prismatic cells.
14. A one or more heat absorbing means (104) being capable of mitigating thermal runaway in an energy module (100), said one or more heat absorbing means (104) comprising:
a first surface (308);
a second surface (312); and
a metallic plate (310);
wherein
said a first surface (308), said second surface (312) and said metallic plate (310) being integrally attached to each other;
said metallic (310) plate being disposed between said first surface (308) and said second surface (312) such that shape of each of said first surface (308), said second surface (312) and said metallic plate (310) conforms to each other.
15. The one or more heat absorbing means (104) as claimed in claim 15, wherein said first surface (308) and said second surface (312) of said one or more heat absorbing means (104) being made of ceramic material.
16. The one or more heat absorbing means (104) as claimed in claim 15, wherein said first surface (308) and said second surface (312) of said one or more heat absorbing means (104) being made of intumescent material.
17. The one or more heat absorbing means (104) as claimed in claim 15, wherein said one or more heat absorbing means (104) comprising one or more grooves (300) on a top portion (302) and a bottom portion (306) of said heat absorbing means (104), said one or more grooves (300) being configured to accommodate at least a portion of a plurality of interconnectors (112).
18. The one or more heat absorbing means (104) as claimed in claim 17, wherein said one or more grooves (300) having a maximum depth of 3-4 mm.
19. The one or more heat absorbing means (104) as claimed in claim 15, wherein said one or more heat absorbing means (104) comprising one or more recesses (304) on said first surface (308), said metallic plate (310) and said second surface (312) of said one or more heat absorbing means (104)
said one or more recesses (304) having a profile complementing shape of a plurality of cells (102) and being configured to accommodate said plurality of cells (102).
20. The one or more heat absorbing means (104) as claimed in claim 19, wherein said one or more recesses (304) having a maximum depth of 3-4 mm.
21. The one or more heat absorbing means (104) as claimed in claim 15, wherein said one or more heat absorbing means (104) being an insulating layer.