Description:FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENT RULES, 2003

COMPLETE SPECIFICATION
[See Section 10 and Rule 13]

TITLE:

“A COOLING PLATE FOR BATTERY PACK”

APPLICANT:

GOOD ENOUGH ENERGY PRIVATE LIMITED
A company incorporated under the Indian Companies Act, 2013,
having address at
F4 B2 Ground Floor, Plot No.1, Sector Ecotech 7, Greater Noida Industrial Development Area, Greater Noida, Gautam Buddha Nagar, Uttar Pradesh, India

PREAMBLE TO THE DESCRIPTION:
The following specification particularly describes the invention and the manner in which it is to be performed:
FIELD OF THE INVENTION
The present invention relates to a cooling plate for a battery pack. More particularly, the present invention relates to a cooling plate for battery pack that include dual inlet flow channels for maintaining uniform temperature distribution in the cells of battery packs.

BACKGROUND OF THE INVENTION
A battery pack is a structured assembly that comprises multiple electrochemical cells which are electrically connected in series, parallel, or a combination of both for achieving a required voltage and energy capacity. The battery pack is considered as a core energy source in a wide range of applications, including electric vehicles (EVs), portable consumer electronics, renewable energy storage systems, uninterruptible power supplies (UPS), and grid-scale energy infrastructure. The performance, safety, and durability of the devices or systems such as electric vehicle are generally dependent on the reliability of the battery pack.
With the development in the battery technology, demands for higher energy density, faster charging, and compact structure, thermal management has emerged as a key challenge. During both charging and discharging cycles, electrochemical reactions within the cells generate heat as a byproduct, and the generated heat, if not effectively managed, accumulate rapidly and lead to elevated temperatures, which further causes a series of thermal related problems such as decreased efficiency, accelerated degradation, capacity loss, and in extreme cases, thermal runaway, which poses a severe safety hazard.
Additionally, a non-uniform temperature distribution across individual cells within the battery pack results in thermal imbalances that causing state-of-charge (SOC) and state-of-health (SOH) mismatches and ultimately reduces the overall lifespan and reliability of the battery pack. For addressing the above-mentioned issues, several advanced thermal management systems, devices and tool were introduced to regulate and stabilize the temperature of the battery pack within an optimal operating range. Once such solution for thermal management in the battery pack is addition or integration of a cooling plate that is also referred as cold plate.
The cooling plate is a flat or contoured heat transfer component that interfaces directly with the cells present in the battery pack. The cooling plate includes a plurality of internal coolant flow channels, through which a cooling fluid i.e. coolant such as water, water-glycol mixtures, or dielectric liquids is circulated. As the coolant flows through the plurality of channels, the coolant absorbs heat from the cells and transports the heat away from the battery pack for maintaining thermal equilibrium. The cooling plate acts as a heat exchanger for enabling the dissipation of heat while minimizing thermal gradients across the battery pack.
EP3223357 relates to a secondary battery module featuring a flat plate type cooling plate designed to improve safety and heat dissipation among chargeable/dischargeable unit cells. However, this cooling plate fails maintain a uniform thermal distribution which results in generation of hotspots in the center region of the battery pack.
EP3832786 discloses a cooling plate including a resin plate in which a plurality of groove portions are formed; and a metal plate provided over a surface of the resin plate where the groove portions are formed, in which the resin plate and the metal plate are bonded to each other through an adhesive layer, and the groove portion of the resin plate forms a flow path for cooling water. However, this cooling plate fails maintain a uniform thermal distribution which results in generation of hotspots in the center region of the battery pack.
Despite the development in the cooling plate, the temperature is still not efficiently balanced in the battery pack due to which the conventionally available cooling plate suffer from several limitations such as cooling at far-end regions, significant pressure drop, and non-uniform thermal distribution, especially in high-power or high-density battery pack layouts.
Therefore, there is a need to introduce an improvised cooling plate for battery pack that maintains uniform temperature distribution in an effective manner and eliminates the chances of hotspots.

OBJECT OF THE INVENTION
The main object of the present invention is to provide a cooling plate for battery pack that includes dual inlet flow channel for maintaining uniform temperature distribution of the cells of the battery pack.
Another object of the present invention is to provide a cooling plate having two strategically positioned inlets that direct the coolant to reach at the center portion for eliminating the chances of hotspots.
Another object of the present invention is to provide a cooling plate with plurality of coolant flow channels that are arranged in a topology to maximize surface contact with the cooling plate which facilitates in rapid cooling of a battery pack.
Still another object of the present invention is to provide a cooling plate having an arrangement of at least two inlets and at least one outlet that reduces the number of fittings at the outlet and maintain a lower pressure drop.

SUMMARY OF THE INVENTION
The present invention relates to a cooling plate that aims to improve the temperature uniformity in the cells of the battery pack by effectively eliminating potential hotspots, thereby ensuring a consistent temperature across all the cells.
In an embodiment, the present invention provides a cooling plate comprising a plurality of coolant flow channels arranged therein and the plurality of coolant flow channels are arranged in a topology to maximize surface contact with the cooling plate that facilitates in rapid cooling of a battery pack. The cooling plate further comprises at least two inlets configured to receive coolant, and each inlet of the at least two inlets include a bifurcated flow path forming two separate flow sub-channels that facilitates in heat transfer. Further the cooling plate comprises at least one outlet connected on the plurality of coolant flow channels, wherein the at least one outlet discharges coolant traversing the plurality of coolant flow channels to maintain a lower pressure drop.
In another embodiment, the present invention provides a battery pack comprising at least one module including a plurality of unit cells arranged via a conductive bar and a plate together in at least one of a series configuration and a parallel configuration. The battery pack further comprise a cooling plate having a plurality of coolant flow channels arranged therein, wherein the plurality of coolant flow channels arranged on a bottom plate, wherein, at least two inlets and at least one outlet are fabricated on a top plate, and routed through to the bottom plate, thereby forming the cooling plate. The battery pack further comprises a top cover to encapsulate the at least one module with the cooling plate.
The above objects and advantages of the present invention will become apparent from the hereinafter set forth brief description of the drawings, detailed description of the invention, and claims appended herewith.

BRIEF DESCRIPTION OF THE DRAWINGS
An understanding of the cooling plate for battery pack of the present invention may be obtained by reference to the following drawings:
Figure 1 is an exploded view of the cooling plate of battery pack according to an embodiment of the present invention.
Figure 2 is a schematic view of the cooling plate of battery pack according to an embodiment of the present invention.
Figure 3 is a top view of the cooling plate of battery pack according to an embodiment of the present invention.
Figure 4 is another top view of the cooling plate of battery pack according to an embodiment of the present invention.
Figure 5 is another top view of the cooling plate of battery pack according to an embodiment of the present invention.
Figure 6 is an isometric view of the battery pack according to an embodiment of the present invention.
Figure 7 is an exploded view of the battery pack according to an embodiment of the present invention.
Figure 8 is a graphical representation of simulated results of temperature distribution of the coolant in the cooling plate.
Figure 9 is a graphical representation of simulation results of the temperature distribution on the cooling plate after discharging the cells of battery pack.
Figure 10 is a graphical representation of simulated results showing uniform temperature distribution on the cells through the cooling plate.
Figure 11 is a graphical representation of simulated results showing volume average temperature on each cell in the battery pack after discharge.

DETAILED DESCRIPTION OF THE INVENTION
The present invention will now be described hereinafter with reference to the accompanying drawings in which a preferred embodiment of the invention is shown. This invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiment set forth herein. Rather, the embodiment is provided so that this disclosure will be thorough, and will fully convey the scope of the invention to those skilled in the art.
Many aspects of the invention can be better understood with references made to the drawings below. The components in the drawings are not necessarily drawn to scale. Instead, emphasis is placed upon clearly illustrating the components of the present invention. Moreover, like reference numerals designate corresponding parts through the several views in the drawings. Before explaining at least one embodiment of the invention, it is to be understood that the embodiments of the invention are not limited in their application to the details of construction and to the arrangement of the components set forth in the following description or illustrated in the drawings. The embodiments of the invention are capable of being practiced and carried out in various ways. In addition, the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limiting.
The present invention provides a cooling plate for battery pack in which there are two inlets for receiving the coolant and one outlet for discharging the coolant. The two inlets of the cooling plate provide a bifurcated flow path forming two separate flow sub-channels that facilitates in heat transfer and also enhances the surface contact area of the coolant with the cooling plate.
In an embodiment, the present invention provides a cooling plate comprising a plurality of coolant flow channels arranged therein and the plurality of coolant flow channels are arranged in a topology to maximize surface contact with the cooling plate that facilitates in rapid cooling of a battery pack. The cooling plate further comprises at least two inlets configured to receive coolant, and each inlet of the at least two inlets include a bifurcated flow path forming two separate flow sub-channels that facilitates in heat transfer. Further the cooling plate comprises at least one outlet connected on the plurality of coolant flow channels, wherein the at least one outlet discharges coolant traversing the plurality of coolant flow channels to maintain a lower pressure drop.
In another embodiment, the present invention provides a battery pack comprising at least one module including a plurality of unit cells arranged via a conductive bar and a plate together in at least one of a series configuration and a parallel configuration. The battery pack further comprises a cooling plate having a plurality of coolant flow channels arranged therein, wherein the plurality of coolant flow channels arranged on a bottom plate, wherein, at least two inlets and at least one outlet are fabricated on a top plate and routed through to the bottom plate thereby forming the cooling plate. The battery pack further comprises a top cover to encapsulate the at least one module with the cooling plate.
Referring to Figure 1, an exploded view of the cooling plate of the battery pack according to an embodiment of the present invention is depicted. The cooling plate (100) comprises at least two plates i.e. a top plate (101) and a bottom plate (102). The top plate (101) is positioned above the bottom plate (102) to form a complete structure of the cooling plate (100). Further, the cooling plate (100) comprises a plurality of coolant flow channels (103) which are arranged on the bottom plate (102) of the cooling plate (100). Further, the cooling plate (100) includes at least two inlets (104, 105) and at least one outlet (106). The at least two inlets (104, 105) and at least one outlet (106) are fabricated on a top plate (101) of the cooling plate (100), and routed through to the bottom plate (102). The at least two inlets (104, 105) receive a pre-defined amount of coolant from a user or through any other source.
The coolant used herein is not restricted to a specific type. Any coolant known to a person skilled in the art, such as water, glycol-based fluids or dielectric coolants may be utilized based on the application requirements, thermal properties and compatibility with the battery pack (depicted in subsequent figures). The selection of coolant may vary depending on factors such as operating temperature range, environmental conditions and safety considerations.
Furthermore, the at least two inlets (104, 105) include a primary inlet (104) and a secondary inlet (105). The plurality of coolant flow channels (103) are arranged such that the coolant flowing from the primary inlet (104) initiates at one extremity (107) of the cooling plate (100) and the coolant flowing from the secondary inlet (105) initiates at an adjacent extremity (109) of the cooling plate (100) for introducing fresh coolant into the cooling plate (100) from both extremities.
The cooling plate (100) is not confined to a single size or shape and may be manufactured in various dimensions and structure configurations such as flat, contoured or modular units according to the requirements.
The shape, size and orientation of the inlet as well as outlet ports are customizable, depending on the flow rate requirements and integration with external systems and overall outlet of the battery pack.
Referring to Figure 2, a schematic view of the cooling plate of the battery pack according to an embodiment of the present invention is depicted. The plurality of coolant flow channels (103) are arranged in a topology to maximize surface contact with the cooling plate (100) that facilitates in rapid cooling of the battery pack. The topology in which the plurality of coolant flow channels (103) are arranged includes an arrangement of plurality of horizontal channels having a plurality of turning points. Further, the topology includes but not limited to meandering or other similar topologies having curved and angular flow channels that create a continuous, repeated patterns.
The at least two inlets (104, 105) are configured to receive coolant, and each inlet of the at least two inlets (104, 105) includes a bifurcated flow path forming two separate flow sub-channels (108, 110) that facilitates in heat transfer. Further, the bifurcated flow path forms two separate flow sub-channels (108, 110) from the at least two inlets (104, 105) which covers distinct complementary regions of the cooling plate (100). Also, the separate flow sub-channels (108, 110) are formed by the at least two inlets (104, 105) which are converged at the at least one outlet (106) that facilitates in maintaining the lower pressure drop.
The pressure drop value of depends on a plurality of parameters such as flow velocity, channel hydraulic diameter and the pressure drop of 9.4 kPa at a particular flow velocity of 0.6 m/s is preferably achieved in the present invention.
Further, the at least one outlet (106) is connected with the plurality of coolant flow channels (103). The at least one outlet (106) discharges coolant traversing the plurality of coolant flow channels (103) to maintain the lower pressure drop. Further, the plurality of coolant flow channels (103) are arranged in such a manner that the flow channels positioned corresponding to the inlets (104, 105) are adjacent to the flow channels towards the outlet (106) to improve the temperature uniformity by effectively eliminating potential hotspots within the cooling plate (100).
The dimensions including diameter, length and thickness of plurality of coolant flow channels are not limited and may vary according to the requirements and size of the battery pack. The plurality of coolant flow channels are made of material that include but not limited to metals, polymers or composites based on thermal conductivity, chemical compatibility and mechanical strength.
Further, the plurality of coolant flow channels functions as pipes or tubes that guide the coolant and ensures continuous and efficient circulation of the coolant beneath the battery cells, thereby enabling effective heat absorption and dissipation.
Further, as depicted in Figure 3, the at least two inlets includes the bifurcated flow path that forms two separate flow sub-channels (108, 110) which further facilitates in heat transfer. The bifurcated flow path increase the surface area of contact with cooling plate (100) and enhance the heat transfer. In Figure 3, the blue colored arrows show the direction of channel distributed into the bifurcated flow path at the at least two inlets (104, 105) and the red colored arrows represents the plurality of coolant flow channels (103) converging at the at least one outlet (106). Referring to Figure 4, another top view of the cooling plate according to an embodiment of the present invention is depicted. The plurality of coolant flow channels (103) are connected from the at least two inlets (104, 105) and the plurality of coolant flow channels (103) are positioned adjacently such that the coolant cold channel flow path is kept next to the hot channel flow path, therefore eliminate the hot spots and maintain a uniform temperature distribution within the cold plate. The blue arrows indicates the direction of the cold fluid flow path and the red arrows indicates the hot fluid flow path in the Figure 4.
Referring to Figure 5, another top view of the cooling plate according to an embodiment of the present invention is depicted. The dotted lines in Figure 5 show the path of the coolant reaching directly middle or center portion of the battery pack (200). As, the plurality of coolant flow channels (103) are connected from the at least two inlets (104, 105) and the plurality of coolant flow channels (103) are positioned adjacently such that the coolant reaches in the center portion of the cooling plate (100), targets cooling at center of the battery pack to effectively eliminate hot spots and maintains the uniform temperature distribution within the battery pack.
Referring to Figure 6, an isometric view of the battery pack according to an embodiment is depicted. The battery pack (200) comprises of at least one module (204) (depicted in Figure 7), the cooling plate (100) and a top cover (201). Further, an exploded view of the battery pack (200) is depicted in Figure 7 respectively. The at least one module (204) includes a plurality of unit cells (203) (preferably 13 cells) arranged via a conductive bar (202) and a plate together in at least one of a series configuration and a parallel configuration. The top cover (201) encapsulates the at least one module (204) with the cooling plate (100).
EXAMPLE 1
Experimentation Analysis
Referring to Figure 8, a graphical representation of simulated results of temperature distribution of coolant to understand the coolant flow directions in the channels and referring to Figure 9, a graphical representation of simulation results of the temperature distribution on the cooling plate after discharging the cells (203) is depicted. In Figure 9, the blue color represents lower temperature (around 20 degrees Celsius) and the red color represents higher temperature (up to 31.5 degree Celsius). Majority of the area of the cooling plate (100) remains blue to light blue range which indicates that the cooling plate (100) stays cool during the discharge cycle. Hence, Figure 9 shows that the topology or arrangement of plurality of coolant flow channels (103) in the cooling plate (100) facilitates effectively eliminating the potential hot spots and maintaining the uniform temperature distribution within the battery pack (200).
Referring to Figure 10, a graphical representation of simulated results showing uniform temperature distribution on the cells (203) through the cooling plate is depicted. The scale of the graph of Figure 10 ranges from 22.05 degree Celsius to 31.53 degree Celsius. Hence, Figure 10 shows that the topology or arrangement of plurality of coolant flow channels (103) in the cooling plate facilitates effectively eliminating the potential hot spots and maintaining the uniform temperature distribution within the battery pack (200).
Referring to Figure 11, a graphical representation of simulated results showing volume average temperature on the each cell in the battery pack after discharge is depicted. The bars in Figure 11 represents the average temperature per cell (203) and shows that the cooling plate (100) effectively maintains the uniform temperature distribution across all the modules (204). In other words, Figure 11 presents the graphical representation of the volume-averaged temperature of each cell within the battery pack modules after discharging the cells at a C-rate of 0.5C. The red bars indicate the volume-averaged temperature of individual cells, while the black horizontal line represents the average temperature within each module. The data show that the average module temperature is consistent across all modules in the battery pack. Furthermore, Figure 11 demonstrates that the cold plate effectively maintains a uniform temperature among the cells, modules, and throughout the entire battery pack.
EXAMPLE 2
Preferred Implementation of the Present Invention
The present invention provides the cooling plate (100) which is positioned beneath the battery pack (200) to improve the temperature uniformity by effectively eliminating potential hotspots. The cooling plate (100) works by circulating the coolant through the bifurcated flow path, which ensures efficient heat removal from the cells (203). As the coolant enters in to the coolant flow channels (103), the coolant splits into two parallel flow paths that flows all the channels arranged over the bottom plate for uniformly covering the surface area of the cooling plate (100), which maximizes contact with heated regions and promoted even hear absorption. As the cells (203) discharges and generates heat, the coolant absorbs it and carries the heat away, thereby maintaining the low and uniform temperature across the cells (203).
Therefore, the present invention provides the cooling plate (100) for battery pack (200) that include dual inlet flow channel for maintaining uniform temperature distribution of the cells of the battery pack (200) by enhancing the surface contact area of the coolant with the cooling plate (100). Further, the coolant flow channels (103) of the cooling plate (100) are configured to guide the coolant to reach the centre of the cooling plate (100) for targeting cooling of the central cells (203) of the battery pack (200). Moreover, the cooling plate (100) have two inlets (104, 105) and a single outlet for reducing the number of fittings at the outlet (106) and maintain the lower pressure drop.
Additionally, the technical advancement of the present invention lies in the cooling plate (100) having two strategically positioned inlets (104, 105) that guides the coolant to move to the center region of the cooling plate (100) for eliminating the chances of hotspots, moreover the topology in which the coolant flow channels (103) are arranged on the bottom plate (102) of the cooling plate (100) helps to uniformly distribute the temperature which also eliminates the potential hotspots. Also, the present invention includes the arrangement of two inlets (104, 105) and one outlet (106) on the cooling plate (100) which reduce the number of fittings and maintain the lower pressure drop.
Many modifications and other embodiments of the invention set forth herein will readily occur to one skilled in the art to which the invention pertain having the benefit of the teachings presented in the foregoing descriptions and the associated drawings. Therefore, it is to be understood that the invention is not to be limited to the specific embodiments disclosed and that modifications and other embodiments are intended to be included within the scope of the appended claims. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
The foregoing description of embodiments of the invention has been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise form disclosed, and modifications and variations are possible in light of the above teachings or may be acquired from practice of the invention. The embodiments were chosen and described in order to explain the principle of the invention and its practical application to enable one skilled in the art to utilize the invention in various embodiments and with various modifications as are suited to the particular use contemplated.
, Claims:CLAIMS
We claim:
1. A cooling plate (100) comprising:
a plurality of coolant flow channels (103) arranged therein, wherein the plurality of coolant flow channels (103) are arranged in a topology to maximize surface contact with the cooling plate (100) that facilitates in rapid cooling of a battery pack (200);
at least two inlets (104, 105) configured to receive coolant, wherein each inlet of the at least two inlets (104, 105) includes a bifurcated flow path forming two separate flow sub-channels (108, 110) that facilitates in heat transfer; and
at least one outlet (106) connected on the plurality of coolant flow channels (103), wherein the at least one outlet (106) discharges coolant traversing the plurality of coolant flow channels (103) to maintain a lower pressure drop.

2. The cooling plate (100) as claimed in claim 1, wherein the topology of the plurality of coolant flow channels (103) is formed by an arrangement of plurality of horizontal channels with a plurality of turning points.

3. The cooling plate (100) as claimed in claim 1, wherein the topology includes but not limited to meandering or other similar topologies having curved and angular flow channels that create a continuous, repeated patterns.

4. The cooling plate (100) as claimed in claim 1, wherein the bifurcated flow path forming two separate flow sub-channels (108, 110) from the at least two inlets (104, 105) covers distinct complementary regions of the cooling plate.

5. The cooling plate (100) as claimed in claim 1, wherein the at least two inlets (104, 105) comprises a primary inlet and a secondary inlet, wherein the plurality of coolant flow channels (103) are arranged such that the coolant flowing from the primary inlet initiates at one extremity (107) of the cooling plate (100) and the coolant flowing from the secondary inlet initiates at an adjacent extremity (109) of the cooling plate (100), thereby introducing fresh coolant into the cooling plate (100) from both extremities.

6. The cooling plate (100) as claimed in claim 1, wherein the plurality of coolant flow channels (103) connected from the at least two inlets (104, 105) are positioned adjacently such that the coolant reaches in a center portion of the cooling plate (100), thereby targeting cooling of at center of the battery pack (200) to effectively eliminate hot spots and maintains a uniform temperature distribution within the battery pack (200).

7. The cooling plate (100) as claimed in claim 1, wherein the separate flow sub-channels (108, 110) formed by the at least two inlets (104, 105) are converged at the at least one outlet (106) that facilitates in maintaining the lower pressure drop.

8. The cooling plate (100) as claimed in claim 1, wherein the plurality of coolant flow channels (103) arranged on a bottom plate (102), wherein, the at least two inlets (104, 105) and at least one outlet (106) is fabricated on a top plate (101), routed through to the bottom plate (102) there by forming the cooling plate (100).

9. The cooling plate (100) as claimed in claim 1, wherein the cooling plate (100) is position beneath the battery pack (200) to improve the temperature uniformity by effectively eliminating potential hotspots.

10. The cooling plate (100) as claimed in claim 1, wherein the pressure drop ranges from 9. 2 to 9.4 kPa at a particular flow velocity of 0.5 to 0.6 m/s.

11. A battery pack (200), comprising:
at least one module (204) including a plurality of unit cells (203) arranged via a conductive bar (202) and a plate together in at least one of a series configuration and a parallel configuration;
a cooling plate (100) having a plurality of coolant flow channels (103) arranged therein, wherein the plurality of coolant flow channels (103) arranged on a bottom plate (102), wherein, at least two inlets (104, 105) and at least one outlet (106) are fabricated on a top plate (101), and routed through to the bottom plate (102), thereby forming the cooling plate (100); and
a top cover (201) to encapsulate the at least one module (204) with the cooling plate (100).

12. The battery pack (200) as claimed in claim 11, wherein the cooling plate (100) having a plurality of coolant flow channels (103) arranged therein, wherein the plurality of coolant flow channels (103) are arranged in a topology to maximize surface contact with the cooling plate (100) that facilitates in rapid cooling of the battery pack (200).

13. The battery pack (200) as claimed in claim 11, wherein the at least two inlets (104, 105) configured to receive coolant, wherein each inlet of the at least two inlets (104, 105) includes a bifurcated flow path forming two separate flow sub-channels (108, 110) that facilitates in heat transfer.

14. The battery pack (200) as claimed in claim 13, wherein the bifurcated flow path forming two separate flow sub-channels (108, 110) from the at least two inlets (104, 105) covers distinct complementary regions of the cooling plate (100).

15. The battery pack (200) as claimed in claim 13, wherein the separate flow sub-channels (108, 110) formed by the at least two inlets (104, 105) are converged at the at least one outlet (106) that discharges coolant traversing the plurality of coolant flow channels (103) to maintain the lower pressure drop.

16. The battery pack (200) as claimed in claim 11, wherein the topology in which the plurality of coolant flow channels (103) is formed by an arrangement of plurality of horizontal channels with a plurality of turning points.

17. The battery pack (200) as claimed in claim 11, wherein the topology includes but not limited to meandering or other similar topologies having curved and angular flow channels that create continuous, repeated patterns.

18. The battery pack (200) as claimed in claim 11, wherein the at least two inlets (104, 105) comprises a primary inlet and a secondary inlet, wherein the plurality of coolant flow channels (103) are arranged such that the coolant flowing from the primary inlet initiates at one extremity (108) of the cooling plate (100) and the coolant flowing from the secondary inlet initiates at an adjacent extremity (108) of the cooling plate (100), thereby introducing fresh coolant into the cooling plate (100) from both extremities.

19. The battery pack (200) as claimed in claim 11, wherein the plurality of coolant flow channels (103) connected from the at least two inlets (104, 105) are positioned adjacently such that the coolant reaches in a center portion of the cooling plate (100), thereby targeting cooling of at center of the battery pack (200) to effectively eliminate hot spots and maintains a uniform temperature distribution within the battery pack (200).

20. The battery pack (200) as claimed in claim 11, wherein the pressure drop ranges from 9. 2 to 9.4 kPa at a particular flow velocity of 0.5 to 0.6 m/s.