Description:FIELD OF THE INVENTION
[001] Present invention generally relates to a battery assembly. More particularly, the present invention relates to disposition of a plurality of battery cells and a battery management system in the battery assembly.

BACKGROUND OF THE INVENTION
[002] Automotive industry conventionally relies heavily on lead-acid batteries for starting, lighting, and ignition (SLI) applications in internal combustion (IC) engine vehicles. However, these batteries exhibit significant drawbacks that includes low energy density, reduced cycle life, substantial weight and volume requirements. This hinders the overall efficiency and performance of the vehicles. Moreover, the main issue is that despite the substantial size and weight of these lead-acid battery, they provide significantly lower energy density and has a low cycle life. This not only impacts vehicle efficiency and performance but also restricts the overall design possibilities and limits the potential for innovation in the automotive sector.
[003] To overcome these limitations, the existing lead-acid batteries are replaced with the lithium-ion batteries. Lithium-ion batteries provide higher energy density and higher cycle life, enabling greater power output and enhanced performance. Additionally, lithium-ion batteries utilize lesser number of cells, leading to reduced overall weight and volume of the battery assembly, providing an efficient and compact energy solution for modern vehicles.
[004] However, there are several problems associated with adoption of lithium-ion batteries. One such problem is that lithium-ion batteries necessitate careful consideration in selecting an optimal type of battery cell for a robust battery assembly. Prismatic lithium-ion battery cells, while offering higher energy, are expensive and generally used for applications with higher capacity requirements. Pouch lithium-ion battery cells pose challenges due to their tendency to expand under high temperature and pressure conditions, potentially damaging the outer casing. Another problem associated with lithium-ion batteries is that they require efficient arrangement within the battery assembly. In addition, the orientation of battery cells also plays a crucial role. A vertical alignment of battery cells leads to complications in wire routing from the cell's terminals, particularly when cell holders are close to a housing of the battery assembly. This not only adds complexity to the wiring but also increases the overall size of the battery assembly.
[005] In view of the above, there is a need for a battery assembly, which addresses at least the aforementioned problems.

SUMMARY OF THE INVENTION
[006] In one aspect, the present invention is directed towards a battery assembly. The battery assembly comprises a housing, a plurality of battery cells and a Battery Management System. The plurality of battery cells being disposed horizontally in the housing, wherein each of the plurality of battery cells being held securely in a cell holder. The Battery Management System (BMS) being coupled to the plurality of battery cells and positioned at a top portion of the housing.
[007] In an embodiment of the present invention, the plurality of battery cells being disposed in a first row of battery cells and a second row of battery cells. The first row of battery cells includes at least two battery cells, and the second row of battery cells includes at least two battery cells.
[008] In a further embodiment of the present invention, the first row of battery cells being disposed above the second row of battery cells. The first row of battery cells includes a first battery cell and a second battery cell. A positive terminal of the first battery cell being coupled to a first interconnector and a negative terminal of the second battery cell being coupled to a second interconnector.
[009] In a further embodiment of the present invention, the first interconnector and the second interconnector comprise a conducting material that includes Copper and Nickel sandwich in a predetermined ratio.
[010] In a further embodiment of the present invention, the second row of battery cells includes a third battery cell and a fourth battery cell. A negative terminal of the third battery cell being coupled to a positive terminal of the fourth battery cell through a third interconnector. Herein, a negative terminal of the first battery cell being coupled to a positive terminal of the third battery cell through a fourth interconnector, and a positive terminal of the second battery cell being coupled to a negative terminal of the fourth battery cell through a fifth interconnector.
[011] In a further embodiment of the present invention, the third interconnector, the fourth interconnector and the fifth interconnector comprise Nickel.
[012] In a further embodiment of the present invention, the housing being a hollow cuboid box. The housing comprises a top cover configured to enclose the plurality of battery cells and the Battery Management System within the housing.
[013] In a further embodiment of the present invention, the plurality of battery cells are cylindrical battery cells.
[014] In a further embodiment of the present invention, the at least two battery cells in the first row of battery cells and the at least two battery cells in the second row of battery cells being arranged in a 4 series 1 Parallel (4S1P) configuration.
[015] In a further embodiment of the present invention, a plurality of couplers for connecting a first set of wires to the Battery Management System.
[016] In a further embodiment of the present invention, the first set of wires comprises a first wire from a first interconnector, a second wire from a second interconnector and a third wire from a third interconnector.
[017] In a further embodiment of the present invention, a second set of wires connected below the Battery Management System
[018] In a further embodiment of the present invention, the second set of wires comprises a fourth wire from a fourth interconnector and a fifth wire from a fifth interconnector.
[019] In a further embodiment of the present invention, a support member configured to mount the Battery Management System and the support member is positioned on the top portion of the housing.
[020] In a further embodiment of the present invention, one or more holder members mounted on a plate member. The plate member being mounted on the cell holders and positioned on the top portion of the housing. Herein, the one or more holder members are adapted to maintain a gap between the support member and the plate member in a top-bottom direction of the housing.

BRIEF DESCRIPTION OF THE DRAWINGS
[021] Reference will be made to embodiments of the invention, examples of which may be illustrated in accompanying figures. These figures are intended to be illustrative, not limiting. Although the invention is generally described in context of these embodiments, it should be understood that it is not intended to limit the scope of the invention to these particular embodiments.
Figure 1 illustrates an exploded view of a battery assembly, in accordance with an embodiment of the present invention.
Figure 2 illustrates a perspective view of the battery assembly, depicting disposition of the battery cells in the battery assembly, in accordance with an embodiment of the present invention.
Figure 3 illustrates a perspective view of the battery assembly, depicting interconnector connection between the battery cells in the battery assembly, in accordance with an embodiment of the present invention.
Figure 4 illustrates a top view of a Battery Management System in the battery assembly, depicting wire routing to the Battery Management System, in accordance with an embodiment of the present invention.
Figure 5 illustrates a perspective view of a housing of the battery assembly, in accordance with an embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION
[022] The present invention generally relates to a battery assembly. More particularly, the present invention relates to disposition of a plurality of battery cells in the battery assembly.
[023] In the present disclosure, arrow indications provided in Figures pertain to directional indications of the battery assembly. As such, the terms “top”, “bottom”, “right side”, “left side”, “upside” and “downside” respectively correspond to right, left, up and down sides of the battery assembly, until and unless specified otherwise.
[024] The present invention provides a solution to the inherent limitations of lead-acid batteries in internal combustion engine vehicles by introducing a 12V battery design with a 4S1P configuration. The innovation lies in the adoption of lithium-ion batteries utilizing lithium ferro phosphate chemistry. The present invention replaces traditional lead-acid batteries with lithium-ion batteries, specifically employing lithium ferro phosphate chemistry. Lithium-ion batteries offer a substantially higher energy density of 130 Wh/kg, representing a leap from the 25 Wh/kg of lead-acid batteries.
[025] The battery assembly of the present invention is configured in a 4S1P arrangement, consisting of four cells connected in series and one parallel configuration. This configuration optimizes the voltage output to achieve the required 12V, enhancing the efficiency of the battery assembly. The battery assembly results in a reduction in weight, achieving around 50-60% less weight compared to traditional lead-acid batteries. The volume of the battery assembly is also reduced by approximately 30-40%, contributing to improved vehicle dynamics and space utilization.
[026] Lithium-ion batteries in the configuration as mentioned in the present invention exhibit an extended cycle life ranging from 1000 to 1300 cycles, addressing the frequent replacement issue associated with lead-acid batteries. The construction of the battery assembly in the present invention mitigates performance degradation observed in lead-acid batteries after approximately 200 cycles. Further, improved cranking efficiency and reduced instances of failed cranks contribute to a more reliable and consistent power supply.
[027] The battery cells are horizontally arranged within the housing of the battery assembly, optimizing space utilization and enabling more efficient wire routing. The horizontal alignment reduces cell spacing, minimizing the footprint of the battery assembly. The advanced interconnector assembly comprising two types of interconnectors, including a copper-nickel sandwich for positive and negative terminals, reducing resistance for high current flow. A nickel interconnector facilitates the connection between cells, with signal wires soldered to tap voltages.
[028] Further, a Battery Management System (BMS) is integrated in the battery assembly for providing intelligent monitoring and management of the lithium-ion battery cells. Wire guiders and clamps in a BMS holder are provided to ensure secure wire routing, preventing stress or bending in the signal wires. While acknowledging the increased cost associated with lithium-ion batteries and the inclusion of a BMS, the present invention emphasizes the trade-off for substantial benefits in weight reduction, volume reduction, performance enhancement, and extended cycle life.
[029] Thus, the present invention provides power source for internal combustion engine vehicles, addressing the limitations of lead-acid batteries by providing efficient, reliable and enhanced performance in automotive energy storage.
[030] An object of the present invention is to increase the energy density of the battery assembly from the conventional 25 Wh/kg to 130 Wh/kg by adopting lithium-ion technology with lithium ferro phosphate chemistry. Higher energy density ensures that the battery assembly delivers more power while occupying less space and weight, contributing to improved overall efficiency. Another object of the present invention is to extend the cycle life of the battery assembly to a range of 1000 to 1300 cycles. A longer cycle life reduces the frequency of battery replacements, providing a more durable and cost-effective solution for automotive applications.
[031] Another object of the present invention is to achieve reduction in weight (around 50-60%) and volume (around 30-40%) compared to traditional lead-acid batteries. Reduced weight and volume contribute to enhanced fuel efficiency, vehicle dynamics, and overall space utilization within the vehicle. Another object of the present invention is to mitigate the performance degradation observed in lead-acid batteries, particularly after 200 cycles. Improving performance stability ensures consistent and reliable power delivery, reducing the likelihood of failed cranks and other performance issues.
[032] Another object of the present invention is to implement a 4S1P configuration, aligning four cells in series and one in parallel, to optimize voltage output. The optimal configuration ensures compatibility with the 12V requirements of internal combustion engines, enhancing the efficiency of the battery assembly. Another object of the present invention is to arrange cells horizontally within the housing of the battery assembly for efficient space utilization and wire routing. The horizontal alignment reduces cell spacing, minimizing the overall footprint of the battery assembly and facilitating an organized wire routing system.
[033] Another object of the present invention is to employ a dual interconnector system, including a copper-nickel sandwich for high-current terminals and nickel interconnectors for cell connection. The interconnector assembly minimizes resistance, ensuring efficient power flow and reliable connectivity between the battery cells.
[034] Another object of the present invention is to integrate a dedicated BMS for intelligent monitoring and management of lithium-ion cells. The BMS ensures optimal performance, prevents overcharging or over-discharging, and enhances the overall safety and longevity of the battery assembly. Thus, the objectives of the present invention revolve around achieving a transformative shift in energy storage for internal combustion engine vehicles, with a focus on higher efficiency, durability, and performance.
[035] Figure 1 illustrates an exploded view of a battery assembly 100, in accordance with an embodiment of the invention. The battery assembly 100 comprises a housing 140, a plurality of battery cells 104, 106, 108, 110 and a Battery Management System 102. The housing 140 acts as a protective casing for the battery assembly 100. The housing 140 has a central axis A-A' that extends in a top-down direction of the housing 140. The housing 140 comprises the top cover 142 configured to enclose the plurality of battery cells 104, 106, 108, 110 and the Battery Management System 102 within the housing 140. The top cover 142 is mounted to the housing 140 via a plurality of fasteners 144, such as a screw or any other connecting means known in the art.
[036] Further, the plurality of battery cells 104, 106, 108, 110 are disposed horizontally in the housing 140. In an embodiment, each of the plurality of battery cells 104, 106, 108, 110 are oriented along an axis B-B’ within the housing 140, wherein the axis B-B’ is oriented horizontally to the axis A-A' of the housing 140. In an embodiment, the axis B-B’ is oriented laterally or perpendicularly to the axis A-A’ of the housing 140. As such, each of the plurality of battery cells 104, 106, 108, 110 is oriented horizontally in the housing 140. Each of the plurality of battery cells 104, 106, 108, 110 is held securely in a cell holder 146. In one instance, each of the plurality of battery cells 104, 106, 108, 110 comprises a first end and a second end. One cell holder 146a is provided on the first end of each of the plurality of battery cells 104, 106, 108, 110 and another cell holder 146b is provided on the second end of each of the plurality of battery cells 104, 106, 108, 110. The cell holder 146 is oriented perpendicularly to the axis B-B’ of the plurality of battery cells 104, 106, 108, 110 or parallelly to the axis A-A’ of the housing 140.
[037] The plurality of battery cells 104, 106, 108, 110 are arranged in one or more rows within the housing 140. In an embodiment, the plurality of battery cells 104, 106, 108, 110 are arranged in two rows. A first row of battery cells R1 includes two battery cells 104, 106. A second row of battery cells R2 includes two battery cells 108, 110. The first row of battery cells R1 is placed above the second row of battery cells R2. In an embodiment, the plurality of battery cells 104, 106, 108, 110 are cylindrical battery cells.
[038] The battery assembly 100 further comprises the Battery Management System (BMS) 102. The BMS 102 is coupled to the plurality of battery cells 104, 106, 108, 110. In an embodiment, the BMS 102 is connected to each of the plurality of battery cells 104, 106, 108, 110 through a wired connection. The BMS 102 is an electronic system which manages the plurality of battery cells 104, 106, 108, 110 by monitoring one or more operating parameters of the each of the plurality of battery cells 104, 106, 108, 110. In an embodiment, the one or more operating parameters of the battery cell comprises charge capacity, discharge capacity, temperature etc of each of the plurality of battery cells 104, 106, 108, 110. A support member 150 is positioned on the top portion C of the housing 140. The support member 150 is configured to mount the BMS 102. For example, the support member 150 is a flat thin board that mounts the BMS 102.
[039] Referring to Figure 2 in conjunction with Figure 1, the battery assembly comprises one or more holder members 152 mounted on a plate member 154. The plate member 154 being mounted on the cell holders 146 and positioned on the top portion C of the housing 140. In an embodiment, the plate member 154 is snap fitted to the cell holders 146. The one or more holder members 152 are adapted to maintain a gap between the support member 150 and the plate member 154 in a top-bottom direction of the housing 140. In an example, the one or more holder members 152 is a cylindrical shaped component configured to engage the support member 150 that mounts the BMS 102. The gap between the support member 150 and the plate member 154 ensures that the wires are routed easily to the BMS 102 without any stress or tension on the wires.
[040] Further, the plurality of battery cells 104, 106, 108, 110 comprises a first battery cell 104, a second battery cell 106, a third battery cell 108 and a fourth battery cell 110. Each of the first battery cell 104, the second battery cell 106, the third battery cell 108 and the fourth battery cell 110 includes a positive terminal and negative terminal. A positive terminal 104a of the first battery cell 104 is coupled to a first interconnector 112a. In an embodiment, the positive terminal 104a of the first battery cell 104 is coupled to the first interconnector 112a by conventional coupling technique known in the art. A negative terminal 106b of the second battery cell 106 is coupled to a second interconnector 112b. In an embodiment, the negative terminal 106b of the second battery cell 106 is coupled to the second interconnector 112b by conventional coupling technique known in the art. The first interconnector 112a and the second interconnector 112b ensures proper electrical conductivity in the battery assembly 100 between each of the plurality of battery cells 104, 106, 108, 110. The first interconnector 112a and the second interconnector 112b comprises a conducting material that includes Copper and Nickel sandwich in a predetermined ratio. In an embodiment, the predetermined ratio of the Copper and Nickel sandwich is 4. In an embodiment, the Copper and Nickel sandwich is formed by electrically connecting a Copper sheet over a Nickel sheet by conventional connecting techniques. The shape and size of the first interconnector 112a and the second interconnector 112b varies depending on the design needs and the interconnection points that are connecting the plurality of battery cells 104, 106, 108, 110 in the battery assembly, and it should be obvious to a person of ordinary skill in the art that all such variation fall within the scope of the present disclosure. In an embodiment, the first interconnector 112a and the second interconnector 112b is a 0.8 mm copper and 0.2 mm nickel sandwich interconnector. High current flows through the first interconnector 112a and the second interconnector 112b, hence the copper-nickel interconnector provides less resistance. A first wire 120a from the first interconnector 112a connects the first battery cell 104 to the BMS 102. A second wire 120b from the second interconnector 112b connects the second battery cell 106 to the BMS 102.
[041] Further, the second row of battery cells R2 includes the third battery cell 108 and the fourth battery cell 110. A negative terminal 108b of the third battery cell 108 is coupled to a positive terminal 110a of the fourth battery cell 110 through a third interconnector 116. In an embodiment, the negative terminal 108b of the third battery cell 108 is coupled to the positive terminal 110a of the fourth battery cell 110 through the third interconnector 116 by conventional coupling technique known in the art. A third wire 120c from the third interconnector 116 connects to the BMS 102. The first wire 120a, the second wire 120b and the third wire 120c forms a first set of wires. The first set of wires 120a, 120b, 120c are connected to a top surface of the Battery Management System 102 via a plurality of couplers 148.
[042] Referring to Figure 3 in conjunction with Figure 2, a negative terminal 104b of the first battery cell 104 is coupled to a positive terminal 108a of the third battery cell 108 through a fourth interconnector 132. In an embodiment, the negative terminal 104b of the first battery cell 104 is coupled to the positive terminal 108a of the third battery cell 108 through the fourth interconnector 132 by conventional coupling technique known in the art. A positive terminal 106a of the second battery cell 106 is coupled to a negative terminal 110b of the fourth battery cell 110 through a fifth interconnector 134. In another embodiment, the positive terminal 106a of the second battery cell 106 is coupled to the negative terminal 110b of the fourth battery cell 110 through the fifth interconnector 134 by conventional coupling technique known in the art. The shape and size of the third interconnector 116, the fourth interconnector 132 and the fifth interconnect 134 varies depending on the design needs and the interconnection points that are connecting the plurality of battery cells 104, 106, 108, 110 in the battery assembly 100, and it should be obvious to a person of ordinary skill in the art that all such variation fall within the scope of the present disclosure. In an embodiment, each of the interconnectors 116, 132, 134 is an elongated member. The elongated member comprises a first end connected to a positive terminal of the battery cell and a second end connected to a negative terminal of the battery cell. The first end and the second end are connection points of the interconnectors 116, 132, 134, wherein each such pair of the first end and the second end connect to the plurality of battery cells 104, 106, 108, 110 in the battery assembly 100. Thereby reducing the number of wires required to connect the plurality of battery cells 104, 106, 108, 110 in the battery assembly 100.
[043] Further, the third interconnector 116, the fourth interconnector 132 and the fifth interconnector 134 comprise Nickel. In an embodiment, the third interconnector 116, the fourth interconnector 132 and the fifth interconnector 134 is a 0.2mm nickel interconnector that connects two battery cells to each other. A fourth wire 132a from the fourth interconnector 132 connects to the BMS 102. A fifth wire 130b from the fifth interconnector 134 connects to the BMS 102. The fourth wire 132a and the fifth wire 130b form a second set of wires. The second set of wires 130a, 130b is connected below the BMS 102. In an embodiment, two battery cells 104, 106 in the first row of battery cells R1 and the two battery cells 108, 110 in the second row of battery cells R2 are arranged in a 4 series 1 Parallel (4S1P) configuration.
[044] Figure 4 illustrates a top view of the Battery Management System 102 in the battery assembly 100, depicting various wire routing to the Battery Management System 102, in accordance with an embodiment of the present invention. Referring to Figure 4 in conjunction with Figures 2 and 3, the first set of wires comprises the first wire 120a, the second wire 120b and the third wire 120c. The first wire 120a is from the first interconnector 112a, the second wire 120b is from the second interconnector 112b and the third wire 120c from the third interconnector 116. The first set of wires 120a, 120b, 120c are connected to a top surface of the Battery Management System 102 via plurality of couplers 148. The second set of wires including the fourth wire 130a and the fifth wire 130b are connected below the Battery Management System 102. Such a configuration ensures reduced wire length of the signal wires and no additional stress such as bending stress is induced onto the signal wires. Moreover, such a wire routing provides efficient path for transfer of current thereby improving the performance of the battery assembly 100.
[045] Figure 5 illustrates a perspective view of a housing in the battery assembly, in accordance with an embodiment of the present invention. Referring to Figure 5 in conjunction with Figures 1, the housing 140 acts as a protective casing for the battery assembly 100. In an embodiment, the housing 140 is a hollow cuboid box. The housing 140 comprises the top cover 142 configured to enclose the plurality of battery cells 104, 106, 108, 110 and the Battery Management System 102 within the housing 140. The top cover 142 is mounted to the housing 140 via a plurality of fasteners 144, such as a screw or any other connecting means known in the art. In an embodiment, the housing 140 includes a flat bottom and at least four side walls defining a chamber for receiving the plurality of battery cells 104, 106, 108, 110. In an embodiment, shape and dimensions of the housing 140 can be considered as per design feasibility and requirement in the battery assembly 100.
[046] In an embodiment, a collar member 156 is provided on a top rim surface (not shown) of each of the at least four side walls of the housing 140. An inner surface of the collar member corresponds to the top portion C of the housing 140. In another embodiment, an inner surface of a top portion of the at least four side walls of the housing 140 member correspond to the top portion C of the housing 140.
[047] The technical problem being addressed by the present invention is the limitation of lead-acid batteries in internal combustion engine vehicles, particularly in the context of starter batteries for cranking applications. Lead-acid batteries have drawbacks such as low energy density, limited cycle life, large size, and weight. The present invention involves replacing lead-acid batteries with lithium-ion batteries, specifically using lithium ferro phosphate chemistry. The present invention aims to overcome the limitations of lead-acid batteries by offering higher energy density, longer cycle life, reduced weight and volume, and improved overall performance.
[048] The Lead-acid batteries have a lower energy density of 25 Wh/kg and a cycle life of around 100 to 200. The present invention switch to lithium-ion batteries with lithium ferro phosphate chemistry, providing a higher energy density of 130 and a cycle life of 1000 to 1300. Further, lead-acid batteries are bulky and heavy, occupying more space for the same power output. The present invention involves implementing a 12V battery design with a 4S1P configuration using lithium-ion batteries, resulting in a reduction of weight by around 50-60% and volume by around 30-40%.
[049] Additionally, the lead-acid batteries experience a capacity degradation and a dip in performance after around 200 cycles. The lithium-ion battery in the present invention addresses this issue by offering better performance, less capacity degradation, and reduced self-discharge. The present invention aims to serve as a complete auxiliary battery for internal combustion engines in non-IC variants, providing a more efficient and reliable power source.
[050] While the lithium-ion batteries may have a higher initial cost, the benefits in terms of weight reduction, volume reduction, enhanced performance, and longer cycle life are seen as justifying the additional cost. The present invention provides a novel battery assembly, including horizontal alignment of battery cells to optimize space and wire routing, and a BMS (Battery Management System) placement to prevent overheating.
[051] Thus, the technical problem being solved by the present invention is the need for a more efficient, compact, and reliable power source for internal combustion engine vehicles, overcoming the limitations of traditional lead-acid batteries. The present invention involves the adoption of lithium-ion batteries with specific chemistry and a battery assembly to achieve superior performance. The present invention as disclosed above is not routine, conventional or well understood in the art, as the claimed aspects enable the following solutions to the existing problems in conventional technologies. The present invention provides a battery assembly that utilizes fewer battery cells resulting in reduced weight and volume of the battery assembly while providing higher energy density. The incorporation of cylindrical battery cells in the present invention ensures cost-effectiveness and suitability for power applications in auxiliary battery assemblies. The present invention provides extended cycle life thereby providing increased performance and reduced capacity degradation and discharge. As a result, the present invention has low maintenance requirements.
[052] Further, in the present invention, the horizontal arrangement of battery cells within the battery assembly enhances compactness and reduces volume of the battery assembly. Such a configuration eliminates potential interference between interconnectors and the Battery Management System (BMS), ensuring optimal functionality. Further, such an arrangement of battery cells also facilitates efficient signal wire routing, thereby addressing concerns related to wire placement and mounting of Battery Management System.
[053] The present invention involves the implementation of a specific battery assembly, utilizing lithium-ion technology with lithium ferro phosphate chemistry. The introduction of specific interconnector assemblies and a dedicated Battery Management System (BMS) demonstrates a tangible and concrete technological solution. The present invention describes a physical arrangement of battery cells in a 4S1P configuration and the use of horizontal battery cell alignment. These physical elements contribute to the non-abstract nature of the invention, as they involve real-world, practical implementations.
[054] The present invention further addresses specific technical problems associated with lead-acid batteries, such as low energy density, limited cycle life, and performance degradation. The incorporation of lithium-ion technology in the present invention provides improved energy density, extended cycle life, and enhanced performance demonstrates a functional and practical solution. The adoption of lithium ferro phosphate chemistry for the lithium-ion batteries in the present invention represents a departure from traditional lead-acid chemistry. The choice of this specific chemistry is not obvious and requires expertise in battery technology to appreciate its advantages.
[055] The use of a dual interconnector system, including a copper-nickel sandwich for high-current terminals, is not a conventional or obvious solution. This approach enhances the conductivity of the battery assembly of the present invention, contributing to improved efficiency. Further, choosing to arrange the battery cells horizontally within the housing of the battery assembly, with a specific rationale related to space utilization and wire routing, reflects a non-obvious consideration. The decision involves optimizing physical placement for practical benefits. While Battery Management Systems are common in battery technology, the specific integration and consideration of wire routing, wire guiders, and clamps in the BMS holder demonstrate a non-trivial approach to managing the lithium-ion cells.
[056] The combination of these elements into a coherent and optimized battery assembly for an auxiliary power source in internal combustion engine vehicles goes beyond conventional wisdom, requiring expertise and innovative thinking in the field. Thus, the present invention is non-abstract as it involves tangible technological components and physical configurations, and it is non-obvious due to the incorporation of innovative elements such as specific battery chemistry, interconnector assembly and overall battery assembly optimization. These features collectively contribute to a technical solution in the field of automotive energy storage.
[057] While the present invention has been described with respect to certain embodiments, it will be apparent to those skilled in the art that various changes and modification may be made without departing from the scope of the invention as defined in the following claims.

List of Reference Numerals
100: Battery Assembly
102: Battery Management System
104: First Battery Cell
104a: Positive Terminal of First Battery Cell
104b: Negative Terminal of First Battery Cell
106: Second Battery Cell
106a: Positive Terminal of Second Battery Cell
106b: Negative Terminal of Second Battery Cell
108: Third Battery Cell
108a: Positive Terminal of Third Battery Cell
108b: Negative Terminal of Third Battery Cell
110: Fourth Battery Cell
110a: Positive Terminal of Fourth Battery Cell
110b: Negative Terminal of Fourth Battery Cell
112a: First Interconnector
112b: Second Interconnector
116: Third Interconnector
120a: First Wire
120b: Second Wire
120c: Third Wire
130a: Fourth Wire
130b: Fifth Wire
132: Fourth Interconnector
134: Fifth Interconnector
140: Housing
142: Top Cover of Housing
144: Plurality of Fasteners
146a, 146b: Cell Holder
148: Plurality of Couplers
150: Support Member
152: Holder Member
154: Plate Member
156: Collar Member
, Claims:1. A battery assembly (100), comprising:
a housing (140);
a plurality of battery cells (104, 106, 108, 110) being disposed horizontally in the housing (140), wherein each of the plurality of battery cells (104, 106, 108, 110) being held securely in a cell holder (146); and
a Battery Management System (BMS) (102) being coupled to the plurality of battery cells (104, 106, 108, 110) and positioned at a top portion (C) of the housing (140).

2. The battery assembly (100) as claimed in claim 1, wherein the plurality of battery cells (104, 106, 108, 110) being disposed in a first row of battery cells (R1) and a second row of battery cells (R2), the first row of battery cells (R1) includes at least two battery cells (104, 106), and the second row of battery cells (R2) includes at least two battery cells (108, 110).

3. The battery assembly (100) as claimed in claim 2, wherein the first row of battery cells (R1) being disposed above the second row of battery cells (R2), the first row of battery cells (R1) includes a first battery cell (104) and a second battery cell (106), a positive terminal (104a) of the first battery cell (104) being coupled to a first interconnector (112a) and a negative terminal (106b) of the second battery cell (106) being coupled to a second interconnector (112b).

4. The battery assembly (100) as claimed in claim 3, wherein the first interconnector (112a) and the second interconnector (112b) comprise a conducting material that includes Copper and Nickel sandwich in a predetermined ratio.

5. The battery assembly (100) as claimed in claim 2, wherein the second row of battery cells (R2) includes a third battery cell (108) and a fourth battery cell (110), a negative terminal (108b) of the third battery cell (108) being coupled to a positive terminal (110a) of the fourth battery cell (110) through a third interconnector (116), wherein a negative terminal (104b) of the first battery cell (104) being coupled to a positive terminal (108a) of the third battery cell (108) through a fourth interconnector (132), and a positive terminal (106a) of the second battery cell (106) being coupled to a negative terminal (110b) of the fourth battery cell (110) through a fifth interconnector (134).

6. The battery assembly (100) as claimed in claim 5, wherein the third interconnector (116), the fourth interconnector (132) and the fifth interconnector (134) comprise Nickel.

7. The battery assembly (100) as claimed in claim 1, wherein the housing (140) being a hollow cuboid box, and the housing (140) comprises a top cover (142) configured to enclose the plurality of battery cells (104, 106, 108, 110) and the Battery Management System (102) within the housing (140).

8. The battery assembly (100) as claimed in claim 1, wherein the plurality of battery cells (104, 106, 108, 110) are cylindrical battery cells.

9. The battery assembly (100) as claimed in claim 2, wherein the at least two battery cells (104, 106) in the first row of battery cells (R1) and the at least two battery cells (108, 110) in the second row of battery cells (R2) being arranged in a 4 series 1 Parallel (4S1P) configuration.

10. The battery assembly (100) as claimed in claim 1 comprising a plurality of couplers (148) for connecting a first set of wires (120a, 120b, 120c) to the Battery Management System (102).

11. The battery assembly (100) as claimed in claim 10, wherein the first set of wires comprises a first wire (120a) from a first interconnector (112a), a second wire (120b) from a second interconnector (112b) and a third wire (120c) from a third interconnector (116).

12. The battery assembly (100) as claimed in claim 1 comprising a second set of wires (130a, 130b) connected below the Battery Management System (102).

13. The battery assembly (100) as claimed in claim 12, wherein the second set of wires comprises a fourth wire (130a) from a fourth interconnector (132) and a fifth wire (130b) from a fifth interconnector (134).

14. The battery assembly (100) as claimed in claim 1 comprising a support member (150) configured to mount the Battery Management System (102) and the support member (150) being positioned on the top portion (C) of the housing (140).

15. The battery assembly (100) as claimed in claim 14 comprising one or more holder members (152) mounted on a plate member (154), the plate member (154) being mounted on the cell holders (146) and positioned on the top portion (C) of the housing (140), wherein the one or more holder members (152) are adapted to maintain a gap between the support member (150) and the plate member (154) in a top-bottom direction of the housing (140).