CN113193280A - Power battery module and system thereof - Google Patents
Power battery module and system thereof Download PDFInfo
- Publication number
- CN113193280A CN113193280A CN202110477266.5A CN202110477266A CN113193280A CN 113193280 A CN113193280 A CN 113193280A CN 202110477266 A CN202110477266 A CN 202110477266A CN 113193280 A CN113193280 A CN 113193280A
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- Prior art keywords
- battery
- shell
- power battery
- housing
- width direction
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
- H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention provides a power battery module and a system thereof, wherein the module comprises: a housing having an interior cavity; the battery unit arrangement structure is arranged in the inner cavity and comprises at least one battery unit which is sequentially arranged along the length direction of the shell, and the battery unit comprises at least one battery core assembly which is sequentially arranged along the width direction of the shell; the battery cell assembly comprises a plurality of battery cells which are sequentially overlapped along the height direction of the shell; the length direction of the shell is consistent with that of the battery cell; the height direction of the shell is consistent with the thickness direction of the battery core; the width direction of the shell is consistent with the width direction of the battery core. The invention provides a power battery module and a system thereof, which can fully utilize the space of a power battery system, improve the space utilization rate of the power battery system, improve the energy density of the power battery system and improve the integration efficiency.
Description
Technical Field
The invention relates to a power battery module and a system thereof.
Background
The power battery system is the most important component in the new energy automobile. With the development of new energy automobiles, the requirements on the energy density of a power battery system are higher and higher.
The existing power battery system generally comprises a box body and a plurality of power battery modules arranged in the box body. The battery volume in the existing power battery module is generally small. Specifically, the size of the battery in the conventional power battery module is generally standard. Such as 18650 batteries. Therefore, in order to increase the electric energy of the power battery system, the number of the power battery modules can be increased in the box body. However, since the shape of the case is not always regular, and even if the case is a regular shape, there may be some space that is not available after accommodating several power battery modules of standard size, resulting in a low energy density of the entire power battery system. Therefore, the requirement of the new energy automobile on the energy density of the power battery system is difficult to meet.
Therefore, it is necessary to provide a battery cell unit and a power battery module to solve the above problems.
Disclosure of Invention
The invention aims to provide a power battery module and a system thereof, which can fully utilize the space of a power battery system, improve the space utilization rate of the power battery system, improve the energy density of the power battery system and improve the integration efficiency.
The above object of the present invention can be achieved by the following technical solutions: a power battery module, it includes: a housing having an interior cavity; the battery unit arrangement structure is arranged in the inner cavity and comprises at least one battery unit which is sequentially arranged along the length direction of the shell, and the battery unit comprises at least one battery core assembly which is sequentially arranged along the width direction of the shell; the battery cell assembly comprises a plurality of battery cells which are sequentially overlapped along the height direction of the shell; the length direction of the shell is consistent with that of the battery cell; the height direction of the shell is consistent with the thickness direction of the battery core; the width direction of the shell is consistent with the width direction of the battery core.
In a preferred embodiment, a support member for supporting the housing is further disposed in the inner cavity; the support divides the internal cavity into a plurality of sub-chambers; the number of the battery units is multiple; a plurality of the sub-chambers correspond to a plurality of battery cells; the battery units are accommodated in the corresponding sub-chambers.
As a preferred embodiment, an integrated cover plate located at one side along the length direction of the battery core is further arranged in the sub-chamber; the integrated cover plate comprises at least one connecting part which is sequentially arranged along the width direction of the shell; the connecting parts correspond to the electric core assemblies one by one; a pole piece is arranged on the connecting part; the pole piece is used for being connected with the electrode of the battery cell in the battery cell assembly corresponding to the connecting part so as to realize the series connection and the parallel connection of the battery cell in the battery cell assembly.
As a preferred embodiment, the support has a separation surface facing into the subchamber; said separation surface facing one of said integrated deck plates within said subchamber; the separation surface is provided with at least one insulating part which is sequentially arranged along the width direction of the shell; the insulation parts correspond to the connecting parts one by one; the insulating part is used for insulating and protecting the corresponding pole piece on the connecting part.
As a preferred embodiment, the housing comprises two end plates oppositely arranged along the length direction thereof; and an insulating protection plate is arranged between the integrated cover plate close to the end plate and the end plate.
As a preferred embodiment, the electric core assembly is plural; a liquid cooling structure is arranged between the adjacent electric core assemblies; the liquid cooling structure is used for cooling the electric core in the electric core assembly.
As a preferred embodiment, the battery unit is plural; the liquid cooling structure is provided with a flow passage for the circulation of cooling liquid; the flow passage comprises a plurality of cooling sections which are communicated with each other; a plurality of the cooling sections correspond to a plurality of the battery cells; each cooling section is used for cooling the electric core in the corresponding battery unit.
As a preferred embodiment, the casing further includes two side plates disposed oppositely in a width direction thereof, and a top plate and a bottom plate disposed oppositely in a height direction of the battery cell; and heat insulation cotton is arranged among the top plate, the bottom plate, the side plate and the battery cell.
In a preferred embodiment, the width of the housing is not less than 246mm, and the length of the housing is not less than 400 mm.
A power battery system, comprising: a box body; at least one power battery module; it is fixed in the box body; the power battery module includes: a housing having an interior cavity; the battery unit arrangement structure is arranged in the inner cavity and comprises at least one battery unit which is sequentially arranged along the length direction of the shell, and the battery unit comprises at least one battery core assembly which is sequentially arranged along the width direction of the shell; the battery cell assembly comprises a plurality of battery cells which are sequentially overlapped along the height direction of the shell; the length direction of the shell is consistent with that of the battery cell; the height direction of the shell is consistent with the thickness direction of the battery core; the width direction of the shell is consistent with the width direction of the battery core.
The application provides a power battery module and beneficial effect of system thereof is: the power battery module and the system thereof provided by the embodiment of the application are provided with a battery unit arrangement structure, wherein the battery unit arrangement structure comprises at least one battery unit which is sequentially arranged along the length direction of a shell, and the battery unit comprises at least one battery core assembly which is sequentially arranged along the width direction of the shell; the electric core assembly comprises a plurality of electric cores which are sequentially overlapped along the height direction of the shell. The length direction of the shell is consistent with that of the battery core; the height direction of the shell is consistent with the thickness direction of the battery core. The width direction of the shell is consistent with the width direction of the battery core. The number of the battery units in the battery unit arrangement structure, the number of the battery core assemblies and the number of the battery cores in the battery core assemblies can be set according to the length space, the width space and the height space inside the box body of the power battery system respectively. That is, when the length of the case of the power battery system is long, the length of the battery cell arrangement structure can be increased by increasing the number of the battery cells. When the width of the box body of the power battery system is longer, the width of the battery unit arrangement structure can be increased by increasing the number of battery core assemblies in the battery units. And when the height of the box body of the power battery system is higher, the height of the battery unit arrangement structure can be increased by increasing the number of the electric cores in the electric core assembly. When the length, the width and the height of the box body of the power battery system are higher, the length of the battery unit arrangement structure can be increased by increasing the number of the battery units in the battery unit arrangement structure, the width of the battery unit arrangement structure can be increased by increasing the number of the battery core assemblies in the battery units, and the height of the battery unit arrangement structure can be increased by increasing the number of the battery cores in the battery core assemblies. The length dimension and/or the width dimension and/or the height dimension of the power battery module according to the embodiment of the present application can be increased or decreased according to the length dimension and/or the width dimension and/or the height dimension of the box body of the power battery system. Compare with the simple superimposed mode of current power battery module with a plurality of sizes are fixed on height and/or length direction, this application embodiment the power battery module can make full use of power battery system's box space, improve the space utilization in power battery system's the box greatly, the collection efficiency is higher. Therefore, the invention provides a power battery module and a system thereof, which can fully utilize the space of a power battery system, improve the space utilization rate of the power battery system, improve the energy density of the power battery system and improve the integration efficiency.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a power battery system provided in an embodiment of the present application;
fig. 2 is an exploded view of a power battery module according to an embodiment of the present disclosure;
fig. 3 is an exploded view of a battery cell according to an embodiment of the present application.
Description of reference numerals:
13. a housing; 14. a battery cell; 15. an electrical core assembly; 17. an electric core; 19. a support member; 21. a sub-chamber; 22. an integrated cover plate; 27. a connecting portion; 31. pole pieces; 33. a separating surface; 37. an end plate; 39. an insulating protection plate; 41. a liquid cooling structure; 43. a cooling section; 45. a side plate; 47. a top plate; 49. a base plate; 51. heat insulation cotton; 53. a box body; 55. a first module; 57. a second module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Please refer to fig. 1 to 3. The application provides a power battery module, it can include: a housing 13 having an interior cavity; the battery unit arrangement structure is arranged in the inner cavity and comprises at least one battery unit 14 which is sequentially arranged along the length direction of the shell 13, and the battery unit 14 comprises at least one battery core assembly 15 which is sequentially arranged along the width direction of the shell 13; the cell assembly 15 includes a plurality of cells 17 stacked in order in a height direction of the housing 13; the length direction of the shell 13 is consistent with the length direction of the battery cell 17; the height direction of the shell 13 is consistent with the thickness direction of the battery cell 17; the width direction of the housing 13 coincides with the width direction of the battery cell 17.
The technical scheme shows that: the power battery module according to the embodiment of the present application is provided with a battery unit arrangement structure, the battery unit arrangement structure includes at least one battery unit 14 arranged in sequence along the length direction of the housing 13, and the battery unit 14 includes at least one battery assembly 15 arranged in sequence along the width direction of the housing 13; the cell assembly 15 includes a plurality of cells 17 stacked in order in the height direction of the housing 13. The length direction of the shell 13 is consistent with the length direction of the battery cell 17; the height direction of the housing 13 coincides with the thickness direction of the battery cell 17. The width direction of the housing 13 coincides with the width direction of the battery cell 17. The number of battery units 14, the number of cell assemblies 15, and the number of cells 17 in the cell assembly 15 in the battery unit arrangement structure can be set according to the length space, the width space, and the height space inside the case 53 of the power battery system, respectively. That is, when the length of the case 53 of the power battery system is long, the length of the battery cell arrangement structure can be increased by increasing the number of battery cells 14. When the width of the case 53 of the power battery system is long, the width of the battery cell arrangement structure can be increased by increasing the number of the battery cell assemblies 15 in the battery cells 14. When the height of the box 53 of the power battery system is higher, the height of the battery unit arrangement structure can be increased by increasing the number of the battery cells 17 in the battery module 15. When the length, width and height of the box 53 of the power battery system are all high, the length of the battery unit arrangement structure can be increased by increasing the number of the battery units 14 in the battery unit arrangement structure, the width of the battery unit arrangement structure can be increased by increasing the number of the battery core assemblies 15 in the battery units 14, and the height of the battery unit arrangement structure can be increased by increasing the number of the battery cores 17 in the battery core assemblies 15. The length dimension and/or the width dimension and/or the height dimension of the power battery module according to the embodiment of the present application may be increased or decreased according to the length dimension and/or the width dimension and/or the height dimension of the tank 53 of the power battery system. Compare with the simple superimposed mode of current power battery module with a plurality of sizes are fixed on height and/or length direction, the power battery module can make full use of power battery system's box 53 space, improve the space utilization in power battery system's box 53 greatly, the collection efficiency is higher.
In the present embodiment, the housing 13 has a hollow structure as a whole. The hollow portion forms an internal cavity. Further, as shown in fig. 1, the housing 13 has a rectangular shape. Of course, the housing 13 is not limited to a rectangular shape, and may have another configuration, which is not limited to this application. Specifically, the housing 13 includes two end plates 37 disposed opposite to each other in the longitudinal direction thereof, two side plates 45 disposed opposite to each other in the width direction thereof, and a top plate 47 and a bottom plate 49 disposed opposite to each other in the height direction thereof. The two side plates 45 are located between the two end plates 37. The two side plates 45, the two end plates 37, the top plate 47 and the bottom plate 49 enclose an inner cavity therebetween. For example, as shown in fig. 2, the longitudinal direction of the housing 13 is the left-right direction. The two end plates 37 are a first end plate 37 and a second end plate 37, respectively, which are oppositely disposed in the left-right direction. Specifically, as shown in fig. 2, for example, the first end plate 37 is located on the left side of the second end plate 37. Further, the width direction of the housing 13 is the front-rear direction. The two side plates 45 are a first side plate 45 and a second side plate 45 which are oppositely arranged in the front-rear direction, respectively. Specifically, as shown in fig. 2, for example, the first side plate 45 is located forward of the second side plate 45. Further, the width of the housing 13 is not less than 246mm, and the length of the housing 13 is not less than 400 mm. The power battery module according to the embodiment of the present application is larger than the standard size.
In this embodiment, the battery cell arrangement is disposed in the interior cavity. Further, the battery cell arrangement structure includes at least one battery cell 14 arranged in sequence along the length direction of the case 13. The at least one may be 1. That is, the battery cell arrangement structure includes 1 battery cell 14. Further, the at least one may also be plural. The plurality may be 2, 3, 4, 5, etc. As shown in fig. 2, the longitudinal direction of the housing 13 is the left-right direction. The battery cell arrangement structure includes 2 battery cells 14 arranged in order in the left-right direction. Further, the battery unit 14 includes at least one cell assembly 15 sequentially arranged in the width direction of the case 13. As shown in fig. 2, the width direction of the housing 13 is the front-rear direction. The battery unit 14 includes 2 electric core assemblies 15 arranged in series in the front-rear direction. Further, the electric core assembly 15 includes a plurality of electric cores 17 stacked in sequence in the height direction of the housing 13. As shown in fig. 2, the height direction of the housing 13 is the vertical direction. The cell assembly 15 includes 12 cells 17 arranged in sequence in the up-down direction. The number of battery units 14, the number of cell assemblies 15, and the number of cells 17 in the cell assembly 15 in the battery unit arrangement structure can be set according to the length space, the width space, and the height space inside the case 53 of the power battery system, respectively. That is, when the length of the case 53 of the power battery system is long, the length of the battery cell arrangement structure can be increased by increasing the number of battery cells 14. When the width of the case 53 of the power battery system is long, the width of the battery cell arrangement structure can be increased by increasing the number of the battery cell assemblies 15 in the battery cells 14. When the height of the box 53 of the power battery system is higher, the height of the battery unit arrangement structure can be increased by increasing the number of the battery cells 17 in the battery module 15. When the length, width and height of the box 53 of the power battery system are all high, the length of the battery unit arrangement structure can be increased by increasing the number of the battery units 14 in the battery unit arrangement structure, the width of the battery unit arrangement structure can be increased by increasing the number of the battery core assemblies 15 in the battery units 14, and the height of the battery unit arrangement structure can be increased by increasing the number of the battery cores 17 in the battery core assemblies 15. The length dimension and/or the width dimension and/or the height dimension of the power battery module according to the embodiment of the present application may be increased or decreased according to the length dimension and/or the width dimension and/or the height dimension of the tank 53 of the power battery system. Compare with the simple superimposed mode of current power battery module with a plurality of sizes are fixed on height and/or length direction, the power battery module can make full use of power battery system's box 53 space, improve the space utilization in power battery system's box 53 greatly, the collection efficiency is higher. For example, fig. 1 shows a power cell system according to an embodiment of the present application. As shown in fig. 1, the power battery system includes a case 53 and 6 power battery modules disposed in the case 53. The 6 power battery modules are not identical in volume. Specifically, as shown in fig. 1, the 6 power battery modules include two first modules 55 located in the middle and 4 second modules 57 located outside the first modules 55. The first module 55 has a larger volume than the second module 57. More specifically, the width of the first module 55 is greater than the width of the second module 57. That is, the number of the electric core assemblies 15 of the battery cell arrangement structure in the first module 55 is greater than that of the electric core assemblies 15 of the battery cell arrangement structure in the second module 57. The first module 55 and the second module 57 can fully occupy the space of the box 53 in the width direction (i.e., the front-back direction shown in fig. 1), thereby improving the space utilization efficiency in the box 53.
Further, the longitudinal direction of the case 13 coincides with the longitudinal direction of the battery cell 17. For example, as shown in fig. 2, the longitudinal direction of the housing 13 is the left-right direction. The length direction of the battery cell 17 is the left-right direction. The width direction of the case 13 coincides with the width direction of the battery cell 17. For example, as shown in fig. 2, the width direction of the housing 13 is the front-rear direction. The width direction of the battery cell 17 is the front-rear direction. Further, the height direction of the case 13 coincides with the thickness direction of the battery cell 17. For example, as shown in fig. 2, the height direction of the housing 13 is the vertical direction. The thickness direction of the battery cell 17 is the up-down direction. The length direction of the shell 13 is consistent with the length direction of the battery cell 17; the height direction of the shell 13 is consistent with the thickness direction of the battery cell 17; the width direction of the case 13 coincides with the width direction of the battery cell 17, so that the battery cell 17 is in a flat state within the case 13.
Further, a support 19 for supporting the housing 13 is also provided in the inner cavity. As shown in fig. 2, for example, the support member 19 extends in the front-rear direction. Further, the upper and lower ends of the supporting member 19 can be fixed to the top plate 47 and the bottom plate 49 of the housing 13, respectively, and the upper and lower ends of the supporting member 19 can support the top plate 47 and the bottom plate 49 of the housing 13, respectively. The fixing mode can be screw fixing, bolt fixing, welding fixing, integral forming fixing and the like, and the application is not specified. Further, the front side and the rear side of the support member 19 can respectively abut against the two side plates 45 of the housing 13, and the front side and the rear side of the support member 19 can respectively support the two side plates 45 of the housing 13. Thus, the top plate 47 and/or the bottom plate 49 of the housing 13 are supported by the support 19; and two side plates 45 to increase the structural strength of the middle of the housing 13 and reduce the risk of breakage of the middle of the housing 13.
Further, the support 19 divides the internal cavity into a plurality of sub-chambers 21 along the length of the housing 13. The battery unit 14 is plural. The plurality of sub-chambers 21 correspond to the plurality of battery cells 14. The correspondence may be that the number of sub-chambers 21 is equal to the number of cells 14. Further, the battery cells 14 are housed in the corresponding sub-chambers 21. For example, as shown in fig. 2, the number of the supporting members 19 is 1. The 1 support 19 divides the interior of the housing 13 into two sub-chambers 21 arranged side-to-side. One cell 14 is housed within each sub-chamber 21. Of course, the number of the supporting members 19 is not limited to 1, and the number of the supporting members 19 may be plural. A plurality of support members 19 are spaced apart along the length of the housing 13 within the interior chamber.
Further, an integrated cover plate 22 is disposed in the sub-chamber 21 on one side in the length direction of the battery cell 17. Further, the cell 17 has an electrode on one side in its length direction. As shown in fig. 3, for example, the electrodes include a first electrode and a second electrode that are oppositely disposed along the length direction of the battery cell 17. Specifically, the first electrode is located on the left side of the second electrode, as shown in fig. 3, for example. Of course, the first electrode is not limited to be located on the left side of the second electrode, and the first electrode may be located on the right side of the second electrode, which is not limited to this application. Further, the first electrode and the second electrode are not limited to being disposed on both sides of the battery cell 17 in the longitudinal direction. The first electrode and the second electrode may be disposed on one side of the battery cell 17 at the same time, which is not specified in this application. Further, the polarities of the first electrode and the second electrode are opposite. Specifically, the first electrode is, for example, a positive electrode. The second electrode is a negative electrode. The first electrode may be a negative electrode. The second electrode is a positive electrode. Further, the sub-chamber 21 comprises two integrated cover plates 22. The two integrated cover plates 22 are respectively disposed on two sides along the length direction of the battery cell 17. Specifically, as shown in fig. 3 for example, the two integrated cover plates 22 include a first cover plate located on the left side of the cell 17 and a second cover plate located on the right side of the cell 17. The first cover plate and the second cover plate are respectively opposite to the electrodes on two sides of the battery cell 17.
Further, the integrated cover 22 includes at least one connection portion 27 sequentially arranged in the width direction of the housing 13. The connecting parts 27 correspond to the electric core assemblies 15 one by one. The one-to-one correspondence may be that the number of the connection parts 27 on the integrated cover plate 22 is equal to the number of the electric core assemblies 15. For example, as shown in fig. 3, one cell unit 14 includes two electric core assemblies 15 arranged side by side in the front-rear direction. Two connection portions 27 are provided on one integrated cover plate 22. Further, a pole piece 31 is arranged on the connecting portion 27; the pole piece 31 is used for connecting with the electrode of the electric core 17 in the electric core assembly 15 corresponding to the connecting portion 27, so as to realize series and parallel connection of the electric cores 17 in the corresponding electric core assembly 15.
Further, the connecting portion 27 is provided with a groove for inserting the electrode. Since the integrated cover 22 is made of an insulating material, when the electrode 37 is inserted into the groove, the electrodes on the connecting portion 27 are isolated from each other, so that the electrodes in the core assembly 15 are insulated from each other.
Further, the support 19 has a separation surface 33 facing into the sub-chamber 21. Further, the number of the partition surfaces 33 is two. The two separation surfaces 33 are disposed opposite to each other in the thickness direction of the support member 19. For example, as shown in fig. 2, the thickness direction of the support 19 is the left-right direction. The two partition surfaces 33 are a first partition surface 33 disposed on the left side of the support member 19 and a second partition surface 33 disposed on the right side of the support member 19. Further, the separation surface 33 faces an integrated cover plate 22 in the sub-chamber 21. As shown in fig. 2, for example, the first partition surface 33 faces the second cover plate of the left battery cell 14. The second separation surface 33 faces the first cover plate of the right battery cell 14. Further, the partition surface 33 is provided with at least one insulating portion arranged in order in the width direction of the housing 13; the insulating portions correspond one-to-one to the connecting portions 27. The one-to-one correspondence may be such that the number of insulating portions on the separation plane 33 is equal to the number of connecting portions 27 on the integrated cover plate 22. Further, the insulating portion is used for insulating and protecting the pole piece 31 on the corresponding connecting portion 27. Thus, the pole piece 31 on the connecting part 27 is prevented from generating leakage accidents. In this way, adjacent integrated cover plates 22 can be separated by an insulating portion on the separation surface 33, thereby preventing the pole pieces 31 on the adjacent integrated cover plates 22 from being electrically connected. For example, as shown in fig. 2, the second cover of the left battery cell 14 and the first cover of the right battery cell 14 are separated by an insulating portion on the separation surface 33.
Further, an insulating protection plate 39 is disposed between the integrated cover plate 22 adjacent to the end plate 37 and the end plate 37. As shown in fig. 2, for example, an insulation protection plate 39 is provided between the first cover plate of the left battery cell 14 and the end plate 37. An insulation protection plate 39 is provided between the second cover plate of the right battery cell 14 and the end plate 37. Thus, the occurrence of leakage accidents between the pole piece 31 and the end plate 37 on the integrated cover plate 22 can be avoided through the insulation protection plate 39.
Further, the electric core assembly 15 is plural. For example, as shown in fig. 3, the number of the electric core assemblies 15 is two. A liquid cooling structure 41 is provided between adjacent electric core assemblies 15. The liquid cooling structure 41 is used for cooling the electric cores 17 in the adjacent electric core assemblies 15. So this liquid cooling structure 41 can with every electric core 17 direct contact in the electric core subassembly 15 of its adjacent both sides, and then can be to every electric core 17 direct cooling in the electric core subassembly 15 of its adjacent both sides. For example, as shown in fig. 2, the liquid cooling structure 41 is disposed between adjacent electric core assemblies 15 along the width direction of the housing 13. This liquid cooling structure 41 can rather than every electric core 17 direct contact in the electric core subassembly 15 of adjacent front side and rear side, and then can be to every electric core 17 direct cooling in the electric core subassembly 15 of its adjacent front side and rear side.
Further, the number of the battery cells 14 is plural, and for example, as shown in fig. 2, the number of the battery cells 14 is two. Further, the liquid cooling structure 41 has a flow passage for flowing the cooling liquid. The flow path includes a plurality of cooling sections 43 in communication. The plurality of cooling sections 43 correspond to the plurality of battery cells 14. The correspondence may be that the number of cooling segments 43 is equal to the number of battery cells 14. Each cooling section 43 is used for cooling the battery core 17 in the corresponding battery unit 14. The number of cooling stages 43 is two, as shown in fig. 2, for example. And the two cooling sections 43 are arranged in sequence along the length of the housing 13. Each cooling section 43 extends into the sub-chamber 21 where the corresponding battery unit 14 is located, so as to cool down the battery core 17 in the corresponding battery unit 14.
Further, heat insulation cotton 51 is arranged between the top plate 47, the bottom plate 49, the side plate 45 and the battery core 17. This thermal-insulated cotton 51 can reduce electric core 17 and receive external environment temperature's influence, reduces electric core 17's temperature influence factor, reduces its difference in temperature, improves its temperature uniformity nature, prolongs electric core 17's life-span.
Further, as shown in fig. 1, the present application embodiment also provides a power battery system, which includes: a case 53; at least one power battery module; it is fixed in the box 53; the power battery module includes: a housing 13 having an interior cavity; the battery unit arrangement structure is arranged in the inner cavity and comprises at least one battery unit 14 which is sequentially arranged along the length direction of the shell 13, and the battery unit 14 comprises at least one battery core assembly 15 which is sequentially arranged along the width direction of the shell 13; the cell assembly 15 includes a plurality of cells 17 stacked in order in a height direction of the housing 13; the length direction of the shell 13 is consistent with the length direction of the battery cell 17; the height direction of the shell 13 is consistent with the thickness direction of the battery cell 17; the width direction of the housing 13 coincides with the width direction of the battery cell 17.
It should be noted that, in the description of the present application, the terms "first", "second", and the like are used for descriptive purposes only and for distinguishing similar objects, and no precedence between the two is intended or should be construed to indicate or imply relative importance. In addition, in the description of the present application, "a plurality" means two or more unless otherwise specified.
It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided will be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but should instead be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are hereby incorporated by reference for all purposes. The omission in the foregoing claims of any aspect of subject matter that is disclosed herein is not intended to forego the subject matter and should not be construed as an admission that the applicant does not consider such subject matter to be part of the disclosed subject matter.
Claims (10)
1. A power battery module, its characterized in that, it includes:
a housing having an interior cavity;
the battery unit arrangement structure is arranged in the inner cavity and comprises at least one battery unit which is sequentially arranged along the length direction of the shell, and the battery unit comprises at least one battery core assembly which is sequentially arranged along the width direction of the shell; the battery cell assembly comprises a plurality of battery cells which are sequentially overlapped along the height direction of the shell; the length direction of the shell is consistent with that of the battery cell; the height direction of the shell is consistent with the thickness direction of the battery core; the width direction of the shell is consistent with the width direction of the battery core.
2. The power battery module as claimed in claim 1, wherein a support member for supporting the housing is further disposed in the inner cavity; the support divides the internal cavity into a plurality of sub-chambers; the number of the battery units is multiple; a plurality of the sub-chambers correspond to a plurality of battery cells; the battery units are accommodated in the corresponding sub-chambers.
3. The power battery module as claimed in claim 2, wherein an integrated cover plate is further disposed in the sub-chamber and located on one side in the length direction of the battery core; the integrated cover plate comprises at least one connecting part which is sequentially arranged along the width direction of the shell; the connecting parts correspond to the electric core assemblies one by one; a pole piece is arranged on the connecting part; the pole piece is used for being connected with the electrode of the battery cell in the battery cell assembly corresponding to the connecting part so as to realize the series connection and the parallel connection of the battery cell in the battery cell assembly.
4. The power battery module as set forth in claim 3, wherein the support has a separation surface facing into the sub-chamber; said separation surface facing one of said integrated deck plates within said subchamber; the separation surface is provided with at least one insulating part which is sequentially arranged along the width direction of the shell; the insulation parts correspond to the connecting parts one by one; the insulating part is used for insulating and protecting the corresponding pole piece on the connecting part.
5. The power battery module of claim 3, wherein the housing includes two end plates disposed opposite each other along a length thereof; and an insulating protection plate is arranged between the integrated cover plate close to the end plate and the end plate.
6. The power battery module as claimed in claim 1, wherein the battery cell assembly is plural; a liquid cooling structure is arranged between the adjacent electric core assemblies; the liquid cooling structure is used for cooling the electric core in the electric core assembly.
7. The power battery module as claimed in claim 6, wherein the battery unit is a plurality of battery units; the liquid cooling structure is provided with a flow passage for the circulation of cooling liquid; the flow passage comprises a plurality of cooling sections which are communicated with each other; a plurality of the cooling sections correspond to a plurality of the battery cells; each cooling section is used for cooling the electric core in the corresponding battery unit.
8. The power battery module of claim 1, wherein the housing further comprises two side plates oppositely arranged in a width direction of the housing, and a top plate and a bottom plate oppositely arranged in a height direction of the battery cell; and heat insulation cotton is arranged among the top plate, the bottom plate, the side plate and the battery cell.
9. The power battery module as recited in claim 1, wherein the width of the housing is no less than 246mm, and the length of the housing is no less than 400 mm.
10. A power cell system, comprising:
a box body;
at least one power battery module; it is fixed in the box body; the power battery module includes: a housing having an interior cavity; the battery unit arrangement structure is arranged in the inner cavity and comprises at least one battery unit which is sequentially arranged along the length direction of the shell, and the battery unit comprises at least one battery core assembly which is sequentially arranged along the width direction of the shell; the battery cell assembly comprises a plurality of battery cells which are sequentially overlapped along the height direction of the shell; the length direction of the shell is consistent with that of the battery cell; the height direction of the shell is consistent with the thickness direction of the battery core; the width direction of the shell is consistent with the width direction of the battery core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110477266.5A CN113193280A (en) | 2021-04-29 | 2021-04-29 | Power battery module and system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110477266.5A CN113193280A (en) | 2021-04-29 | 2021-04-29 | Power battery module and system thereof |
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| Publication Number | Publication Date |
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| CN113193280A true CN113193280A (en) | 2021-07-30 |
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|---|---|---|---|
| CN202110477266.5A Pending CN113193280A (en) | 2021-04-29 | 2021-04-29 | Power battery module and system thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111416076A (en) * | 2019-01-08 | 2020-07-14 | 株式会社Lg化学 | Battery module, method of manufacturing the same, battery pack including the battery module, and vehicle |
| CN111477931A (en) * | 2020-04-30 | 2020-07-31 | 昆山宝创新能源科技有限公司 | Laminate polymer battery and vehicle |
| CN112086597A (en) * | 2020-09-08 | 2020-12-15 | 合肥国轩高科动力能源有限公司 | Power battery module and system |
| DE102019210188A1 (en) * | 2019-07-10 | 2021-01-14 | Mahle International Gmbh | Energy storage cell stack |
| CN112582727A (en) * | 2019-09-30 | 2021-03-30 | Sk新技术株式会社 | Battery module |
| CN213071272U (en) * | 2020-08-24 | 2021-04-27 | 合肥国轩高科动力能源有限公司 | Soft packet of module and contain its electric automobile |
-
2021
- 2021-04-29 CN CN202110477266.5A patent/CN113193280A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111416076A (en) * | 2019-01-08 | 2020-07-14 | 株式会社Lg化学 | Battery module, method of manufacturing the same, battery pack including the battery module, and vehicle |
| DE102019210188A1 (en) * | 2019-07-10 | 2021-01-14 | Mahle International Gmbh | Energy storage cell stack |
| CN112582727A (en) * | 2019-09-30 | 2021-03-30 | Sk新技术株式会社 | Battery module |
| CN111477931A (en) * | 2020-04-30 | 2020-07-31 | 昆山宝创新能源科技有限公司 | Laminate polymer battery and vehicle |
| CN213071272U (en) * | 2020-08-24 | 2021-04-27 | 合肥国轩高科动力能源有限公司 | Soft packet of module and contain its electric automobile |
| CN112086597A (en) * | 2020-09-08 | 2020-12-15 | 合肥国轩高科动力能源有限公司 | Power battery module and system |
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