CN211980682U - End plate assembly and battery module - Google Patents
End plate assembly and battery module Download PDFInfo
- Publication number
- CN211980682U CN211980682U CN202020606989.1U CN202020606989U CN211980682U CN 211980682 U CN211980682 U CN 211980682U CN 202020606989 U CN202020606989 U CN 202020606989U CN 211980682 U CN211980682 U CN 211980682U
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- China
- Prior art keywords
- end plate
- plate body
- plate assembly
- battery module
- positioning portion
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular 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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
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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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The application discloses end plate assembly reaches battery module including this end plate assembly. The end plate assembly comprises an end plate body and an insulating baffle, the insulating baffle comprises a central portion and a frame portion connected with the central portion, the frame portion surrounds the periphery of the central portion, the frame portion is attached to the end plate body, and a gap is formed between the central portion and the end plate body. The application provides an end plate subassembly is equipped with the inflation space that supplies electric core inflation, avoids the unable normal inflation of electric core.
Description
Technical Field
The application relates to the technical field of power batteries, in particular to an end plate assembly and a battery module.
Background
The casing of the battery module is one of the core components of the battery module, and the inner space of the casing is used for accommodating a plurality of battery cells. The general module shell comprises a pair of end plates, a pair of side plates and a bottom plate, wherein the end plates are arranged at two ends in the arrangement direction of the battery cells, the end plates and the side plates are made of metal plates, and the end plates and the side plates are fixedly installed in a welding mode, a thread fixing mode and the like; the installation is mainly to prevent the cell from swelling and deforming.
The current endplate design suffers from the following drawbacks: most of the existing module end plate structures adopt metal plates with higher rigidity and are used for preventing the length of the battery module from deforming; however, the end plate is designed in such a way, the deformation problem of the length of the battery module can be solved by the rigidity of the end plate, and the battery cell is continuously clamped by the end plate when the battery cell expands, so that the battery cell cannot normally expand, the normal charging process inside the battery cell is interfered, and the performance representation and the cycle life of the battery module are influenced.
SUMMERY OF THE UTILITY MODEL
The application provides an end plate assembly is equipped with the inflation space that supplies electric core inflation, avoids end plate assembly to last to press from both sides tightly and cause the unable normal inflation of electric core to electric core. The present application further provides a battery module including the end plate assembly.
In a first aspect, the present application provides an end plate assembly. The end plate assembly is applied to the battery module. The end plate assembly comprises an end plate body and an insulating baffle, the insulating baffle comprises a central portion and a frame portion connected with the central portion, the frame portion is arranged around the periphery of the central portion, the frame portion is attached to the end plate body, and a gap is formed between the central portion and the end plate body.
In one embodiment, the central portion is provided with a plurality of spaced apart notches extending through the central portion.
In one embodiment, the central portion is provided with a first surface facing away from the end plate body, the frame portion is provided with a second surface facing away from the end plate body, the first surface and the second surface are oriented in the same direction, and the first surface and the second surface are flush.
In one embodiment, a side of the frame portion facing away from the end plate body is provided with a plurality of spaced grooves, and the grooves are recessed from the second surface toward one side of the end plate body.
In one embodiment, the frame portion further comprises a reinforcing rib connected between any two adjacent grooves.
In one embodiment, the insulating baffle plate further comprises a positioning part protruding from the edge of the frame part towards the side away from the end plate body, and the positioning part is used for limiting the position of the end plate assembly in the battery module.
In one embodiment, the positioning portion includes a first positioning portion and a second positioning portion opposite to the first positioning portion, a side of the first positioning portion facing the second positioning portion is in a first arc shape, a side of the second positioning portion facing the first positioning portion is in a second arc shape, and an arc radius of the first arc shape is the same as an arc radius of the second arc shape.
In one embodiment, the insulating baffle further comprises a limiting part protruding from the frame part towards one side of the end plate body; one side of the end plate body, which faces the insulating baffle, is provided with a limiting groove matched with the limiting part, and the limiting part is contained in the limiting groove.
In a second aspect, the present application further provides a battery module. The battery module comprises a battery cell and the end plate assembly, the end plate assembly is located on the side edge of the battery cell, and the insulating baffle is located between the battery cell and the end plate body.
In one embodiment, the battery module further includes a bracket, the bracket is mounted on the battery core, and the insulating baffle is clamped on the bracket.
In this application embodiment, frame among the insulating barrier is protruding towards one side of end plate body relative center portion for be equipped with the clearance between insulating barrier and the end plate body, when electric core normal work inflation, the bulging force that electric core produced supports holds insulating barrier, makes insulating barrier can take place deformation, thereby provides the inflation space for the normal inflation of electric core. Meanwhile, because insulating barrier has ductility and resilience for when insulating barrier's central part can take place deformation under the effect of electric core inflation power, the central part is applyed a reverse effort in electric core, avoids electric core inflation too big.
Drawings
In order to more clearly illustrate the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a battery module according to an embodiment of the present disclosure;
fig. 2 is a partial structural view of the battery module shown in fig. 1;
FIG. 3 is an exploded view of the structure shown in FIG. 2;
FIG. 4 is a schematic diagram of an exploded structure of the end plate assembly shown in FIG. 2;
FIG. 5 is a schematic view of the insulating barrier of FIG. 4 at an angle;
FIG. 6 is a schematic view of the insulating barrier of FIG. 4 at another angle;
fig. 7 is a schematic view of the insulating barrier of fig. 4 at yet another angle.
Detailed Description
Technical solutions in embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, and not all embodiments. In the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a battery module according to an embodiment of the present disclosure. The embodiment of the present application provides a battery module 100. The battery module 100 can provide a power source for the electric vehicle to drive the electric vehicle to run. The battery module 100 can also be other electronic devices, such as: power generation equipment, unmanned underwater vehicle or recreational vehicle power supply and the like. In the embodiment of the present application, the battery module 100 is described as an example of an electric vehicle.
Referring to fig. 1 to 3, fig. 2 is a schematic view illustrating a partial structure of the battery module 100 shown in fig. 1; fig. 3 is an exploded view of the structure shown in fig. 2. The battery module 100 includes a battery cell 10, an end plate assembly 20, and a side plate 30. The end plate assembly 20 and the side plate 30 are respectively located at the side of the battery cell 10. The number of the end plate assemblies 20 and the side plates 30 is two. The two end plate assemblies 20 are respectively located at two opposite sides of the battery cell 10, the two side plates 30 are respectively located at two opposite sides of the battery cell 10, and the two side plates 30 are connected between the two end plate assemblies 20 to surround the battery cell 10. The end plate assembly 20 and the side plate 30 are arranged around the battery cell 10, so that a protective shell is formed to protect a plurality of battery cells 10 inside, and the structural strength of the battery module 100 can be ensured.
The number of the battery cells 10 is plural. The plurality of battery cells 10 are arranged in order in the thickness direction of the end plate assembly 20. The side plate 30 extends in the direction in which the plurality of battery cells 10 are arranged. When the end plate assembly 20 is assembled with a plurality of battery cells 10, each end plate assembly 20 may apply an initial pre-tightening force to the battery cells 10 to ensure the flatness of each battery cell 10. The side plates 30 may be coupled to the end plate assembly 20 by, but not limited to, welding techniques to secure the structural strength of the battery module 100.
Further, the battery module 100 further includes a bracket 40. The bracket 40 is mounted on the battery cell 10. The bracket 40 includes a first guide hole 41, a second guide hole 42, and a third guide hole 43, which are sequentially provided at intervals. The first guide hole 41 and the third guide hole 43 correspond to the positive and negative poles of the battery cell 10, respectively. The positive electrode and the negative electrode of the battery cell 10 are respectively accommodated in the first guide hole 41 and the third guide hole 43, so as to position the support 40 and the battery cell 10. The second guiding hole 42 is located between the positive and negative poles of the battery cell 10. The end plate assembly 20 is engaged with the bracket 40, and the end plate assembly 20 and the bracket 40 are positioned. As shown in fig. 2, the end plate assembly 20 is engaged between the first guide hole 41 and the second guide hole 42 and between the second guide hole 42 and the third guide hole 43.
In the embodiment of the present application, the end plate assembly 20 positions the end plate assembly 20 relative to the bracket 40 through two engagement points, and defines the positions of the end plate assembly 20 relative to the bracket 40 in the length direction and the width direction, so that the positions of the end plate assembly 20 relative to the bracket 40 are effectively defined, and the accuracy of assembling the end plate assembly 20 to the bracket 40 is ensured.
Further, referring to fig. 2 and 4 together, fig. 4 is an exploded view of the end plate assembly 20 shown in fig. 2. The end plate assembly 20 includes an end plate body 21 and an insulating baffle 22 attached to the end plate body 21. The side of the insulating barrier 22 facing away from the end plate assembly 20 is used to attach the cell 10. As shown in fig. 2, an insulating barrier 22 is located between the cell 10 and the end plate body 21. The end plate body 21 is generally made of a metal plate material to increase the structural rigidity of the battery module 100. The insulating baffle 22 is located between the end plate body 21 and the battery cell 10, and prevents the end plate body 21 from interfering with the signal of the battery cell 10, so as to ensure the reliability of the battery module 100.
The insulating barrier 22 includes a central portion 221 and a frame portion 222 connected to the central portion 221. The frame portion 222 surrounds the center portion 221. The frame portion 222 protrudes toward the side close to the end plate body 21 with respect to the center portion 221. The frame portion 222 is attached to the end plate body 21, and a gap is formed between the center portion 221 and the end plate body 21. In the embodiment of the present application, the frame portion 222 and the central portion 221 are described as an example to simplify the insulating barrier 22.
It is understood that the central portion 221 is recessed toward one side of the cell 10 with respect to the frame portion 222, so that the frame portion 222 protrudes one layer toward the end plate body 21 with respect to the central portion 221. Since the frame portion 222 protrudes toward one side of the end plate body 21 with respect to the center portion 221, a gap is provided between the center portion 221 and the end plate body 21 when the frame portion 222 is attached to the end plate body 21. This gap can be used for the center portion 221 to deform toward the side of the end plate body 21 at the force of expansion of the cell 10 to provide an expansion space of the cell 10.
In the embodiment of the present application, the frame portion 222 of the insulating barrier 22 protrudes toward one side of the end plate body 21 with respect to the central portion 221, so that a gap is provided between the insulating barrier 22 and the end plate body 21. When the battery cell 10 is expanded in normal operation, the expansion force generated by the battery cell 10 abuts against the insulating baffle 22, so that the insulating baffle 22 can deform, and an expansion space is provided for normal expansion of the battery cell 10. Moreover, since the end plate body 21 is fixed relative to the frame portion 222 of the insulating barrier 22, when the central portion 221 of the insulating barrier 22 deforms under the expansion force of the battery cell 10, the gap between the central portion 221 and the end plate body 21 is gradually reduced to limit the deformation of the central portion 221, that is, to limit the space in which the battery cell 10 expands, so as to avoid over-expansion of the battery cell 10. Meanwhile, because the insulating barrier 22 has ductility and resilience, when the central portion 221 of the insulating barrier 22 deforms under the action of the expansion force of the battery cell 10, the central portion 221 applies a reverse acting force to the battery cell 10, thereby avoiding the battery cell 10 from expanding too much.
In one embodiment, the central portion 221 is provided with a plurality of spaced notches 220. The notch 220 extends through the central portion 221. As shown in fig. 4, the plurality of notches 220 are sequentially arranged at intervals along the height direction of the battery cell 10. The shape and number of the plurality of notches 220 shown in fig. 4 are only examples, and the present application is not limited thereto.
In this embodiment, the central portion 221 of the insulating barrier 22 is provided with a plurality of gaps 220 arranged at intervals, so that the central portion 221 is more easily deformed under the action of an external force, thereby reducing the pre-tightening force of the insulating barrier 22 on the battery cell 10 and being more beneficial to the normal expansion of the battery cell 10.
Further, referring to fig. 2, fig. 4 and fig. 5, fig. 5 is a schematic view of the insulating barrier 22 shown in fig. 4 at an angle. The central portion 221 is provided with a first face 201 facing away from the endplate body 21. The frame portion 222 is provided with a second surface 202 facing away from the end plate body 21. The first face 201 is oriented the same as the second face 202, and the first face 201 is flush with the second face 202. It will be appreciated that the plane of the first face 201 coincides with the plane of the second face 202. The first surface 201 and the second surface 202 are both the insulating baffle 22 facing one side of the battery cell 10, and when the end plate body 21 is installed on the battery cell 10, the first surface 201 and the second surface 202 are both attached to the battery cell 10.
In the embodiment of the present application, the frame portion 222 of the insulating barrier 22 and one surface of the central portion 221 facing the battery cell 10 are located on the same plane, so that when the end plate assembly 20 is installed on the battery cell 10, the end plate assembly 20 and the battery cell 10 are tightly attached to each other, and thus the end plate assembly 20 has a preset pretightening force on the battery cell 10, so as to ensure the flatness of the battery cell 10. And the central part 221 of the insulating baffle 22 is attached to the surface of the battery cell 10, so that the expansion force generated when the battery cell 10 expands is directly applied to the central part 221, and the central part 221 deforms to generate a reverse resilience force on the battery cell 10, thereby preventing the battery cell 10 from expanding too much.
As shown in fig. 5, in one embodiment, a side of the frame portion 222 facing away from the end plate body 21 is provided with a plurality of spaced grooves 223. The groove 223 is recessed from the second face 202 toward the side of the end plate body 21. The frame portion 222 further includes a rib 224, and the rib 224 is connected between any two adjacent grooves 223.
In the present embodiment, the frame portion 222 is provided with the groove 223 recessed from the second surface 202 toward the endplate body 21 side, which reduces the weight of the frame portion 222 and thus the endplate assembly 20. Wherein, the reinforcing ribs 224 are arranged between the plurality of grooves 223, which not only ensures the strength of the frame portion 222, but also increases the stability of the frame portion 222, thereby improving the reliability of the end plate assembly 20.
Referring to fig. 2 and fig. 6, fig. 6 is a schematic view of the insulating barrier 22 shown in fig. 4 at another angle. Insulating barrier 22 also includes locator 225. The positioning portion 225 protrudes from the edge of the frame portion 222 toward the side away from the endplate body 21. The positioning parts 225 serve to define the positions of the end plate assembly 20 in the battery module 100. In the embodiment of the present application, the end plate assembly 20 is mounted to the bracket 40 through the positioning portions 225 of the insulating barrier 22 to determine the position of the positioning end plate assembly 20 relative to the battery module 100, thereby ensuring the accuracy of the assembly of the end plate assembly 20 in the battery module 100.
In one embodiment, positioning portion 225 includes a first positioning portion 2251 and a second positioning portion 2252 disposed opposite first positioning portion 2251. First positioning part 2251 has a first arc shape on a side facing second positioning part 2252. The second positioning part 2252 has a second arc shape on a side facing the first positioning part 2251, and the arc radius of the first arc shape is the same as that of the second arc shape. The first positioning part 2251 and the second positioning part 2252 are arc-shaped and fit into the second guide hole 42 of the bracket 40, so that the first positioning part 2251 and the second positioning part 2252 are respectively engaged with two sides of the second guide of the bracket 40, thereby positioning the position of the end plate assembly 20 relative to the battery cell 10.
In the embodiment of the present application, the end plate assembly 20 is clamped with the bracket 40 by the first positioning portions 2251 and the second positioning portions 2252 to position the end plate assembly 20 relative to the bracket 40, and position of the end plate assembly 20 relative to the bracket 40 in the length direction and the width direction is defined, so that position of the end plate assembly 20 relative to the bracket 40 is effectively defined, and accuracy of assembling the end plate assembly 20 to the bracket 40 is ensured.
Further, referring to fig. 2 and 7, fig. 7 is a schematic structural view of the insulating barrier 22 shown in fig. 4 at another angle. In one embodiment, the insulating barrier 22 further includes a stop 226. The stopper 226 protrudes from the frame 222 toward one side of the header body 21. A limiting groove (not shown) matched with the limiting part 226 is formed on one side of the end plate body 21 facing the insulating baffle 22. The position-limiting portion 226 is received in the position-limiting groove. It can be understood that the limiting portion 226 is engaged with the groove wall of the limiting groove to realize the connection between the insulating baffle 22 and the end plate body 21. The frame portion 222 has a third surface 203 opposite to the second surface 202. The third surface 203 is attached to the end plate body 21. It is understood that the stopper 226 protrudes from the third face 203 toward one side of the end plate body 21.
In the present embodiment, the insulating barrier 22 and the end plate body 21 are fitted to the limit groove through the limit portion 226, so that not only the assembly of the end plate body 21 and the insulating barrier 22 is realized, but also the positioning of the end plate body 21 and the insulating barrier 22 is realized. As shown in fig. 7, the number of the limiting portions 226 is two, so that the limiting portions 226 can simultaneously limit the positions of the insulating barrier 22 and the end plate in two directions, and inaccurate installation of the end plate body 21 and the insulating barrier 22 caused by limiting the position in only one direction is avoided.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the methods and their core ideas of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. The utility model provides an end plate subassembly, is applied to battery module, its characterized in that, includes end plate body and insulating baffle, insulating baffle include the central part and with the frame portion that the central part links to each other, frame portion encloses to be established the periphery of central part, frame portion laminate in the end plate body, just the central part with form the clearance between the end plate body.
2. The endplate assembly according to claim 1, wherein the central portion defines a plurality of spaced-apart notches extending therethrough.
3. The end plate assembly of claim 1 or 2, wherein the central portion is provided with a first face facing away from the end plate body, the rim portion is provided with a second face facing away from the end plate body, the first face is facing the same as the second face, and the first face is flush with the second face.
4. The end plate assembly of claim 3, wherein a side of the rim portion facing away from the end plate body is provided with a plurality of spaced apart grooves recessed from the second face toward the side of the end plate body.
5. The end plate assembly of claim 4 wherein said rim portion further comprises a rib connected between any two adjacent of said grooves.
6. The end plate assembly of claim 1, wherein the insulating barrier further comprises a positioning portion protruding from an edge of the frame portion toward a side facing away from the end plate body, the positioning portion for defining a position of the end plate assembly in a battery module.
7. The end plate assembly of claim 6, wherein the positioning portion includes a first positioning portion and a second positioning portion disposed opposite to the first positioning portion, a side of the first positioning portion facing the second positioning portion is in a first arc shape, a side of the second positioning portion facing the first positioning portion is in a second arc shape, and an arc radius of the first arc shape is the same as an arc radius of the second arc shape.
8. The end plate assembly of claim 3, wherein the insulating barrier further comprises a limiting portion protruding from the rim portion toward a side of the end plate body; one side of the end plate body, which faces the insulating baffle, is provided with a limiting groove matched with the limiting part, and the limiting part is contained in the limiting groove.
9. A battery module comprising a cell and the end plate assembly of any of claims 1-8, wherein the end plate assembly is located at a side of the cell, and the insulating barrier is located between the cell and the end plate body.
10. The battery module of claim 9, further comprising a bracket mounted to the cell, wherein the insulating barrier is snapped into the bracket.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020606989.1U CN211980682U (en) | 2020-04-21 | 2020-04-21 | End plate assembly and battery module |
| PCT/CN2021/083301 WO2021213134A1 (en) | 2020-04-21 | 2021-03-26 | End plate assembly and battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020606989.1U CN211980682U (en) | 2020-04-21 | 2020-04-21 | End plate assembly and battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211980682U true CN211980682U (en) | 2020-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020606989.1U Active CN211980682U (en) | 2020-04-21 | 2020-04-21 | End plate assembly and battery module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN211980682U (en) |
| WO (1) | WO2021213134A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021213134A1 (en) * | 2020-04-21 | 2021-10-28 | 比亚迪股份有限公司 | End plate assembly and battery module |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6212914B2 (en) * | 2013-04-08 | 2017-10-18 | 株式会社Ｇｓユアサ | Power storage device |
| CN206003872U (en) * | 2016-09-23 | 2017-03-08 | 宁德时代新能源科技股份有限公司 | Battery modules |
| CN207967108U (en) * | 2018-03-09 | 2018-10-12 | 宁德时代新能源科技股份有限公司 | Battery modules end plate and battery modules |
| CN109216610A (en) * | 2018-07-25 | 2019-01-15 | 东莞塔菲尔新能源科技有限公司 | A kind of battery modules |
| CN211980682U (en) * | 2020-04-21 | 2020-11-20 | 比亚迪股份有限公司 | End plate assembly and battery module |
-
2020
- 2020-04-21 CN CN202020606989.1U patent/CN211980682U/en active Active
-
2021
- 2021-03-26 WO PCT/CN2021/083301 patent/WO2021213134A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021213134A1 (en) * | 2020-04-21 | 2021-10-28 | 比亚迪股份有限公司 | End plate assembly and battery module |
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| Publication number | Publication date |
|---|---|
| WO2021213134A1 (en) | 2021-10-28 |
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Effective date of registration: 20220919 Address after: No. 3009, BYD Road, Pingshan District, Shenzhen, Guangdong 518118 Patentee after: BYD Co.,Ltd. Patentee after: SHANWEI BYD AUTO CO.,LTD. Address before: 518118 BYD Road, Pingshan New District, Shenzhen, Guangdong 3009 Patentee before: BYD Co.,Ltd. |