CN111564584A - Battery module and battery pack - Google Patents
Battery module and battery pack Download PDFInfo
- Publication number
- CN111564584A CN111564584A CN202010257322.XA CN202010257322A CN111564584A CN 111564584 A CN111564584 A CN 111564584A CN 202010257322 A CN202010257322 A CN 202010257322A CN 111564584 A CN111564584 A CN 111564584A
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- battery
- out terminal
- end fixing
- battery module
- leading
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- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Classifications
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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
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/488—Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density
-
- 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
- H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
-
- 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 battery module, wherein two ends of a plurality of groups of battery packs are respectively sleeved in protruding cylinders of two end fixing plates, BMS control boards are nested in a space surrounded by a protruding part of one end fixing plate facing to the outer side surface, a total positive leading-out terminal and a total negative leading-out terminal of the BMS control boards are correspondingly connected with a total positive end and a total negative end of the plurality of groups of battery packs which are mutually connected in series or/and in parallel one by one, a front cover plate is matched and combined with the end fixing plates of the nested BMS control boards, and the total positive leading-out terminal, the total negative leading-out terminal and a female end of a communication plug connector of the BMS control boards are sequentially and correspondingly sleeved in a total positive leading-out terminal through hole, a total negative leading-out terminal through hole and an external communication plug connector. The invention also provides a battery pack manufactured by using the battery module. The battery module has the advantages of simple and compact structure, small volume and convenient installation, and the battery pack manufactured by using the battery module has good safety.
Description
Technical Field
The invention relates to a battery module and a battery pack.
Background
Along with the market situation that new energy battery application field enlarges day by day, the battery voltage platform and the capacity of different scene demands are also different, just so need assemble into the battery module of isostructure, and can assemble into the battery package with a plurality of battery modules as required, generally at the battery module in addition, all can set up battery management system BMS in the battery package, in order to make things convenient for the control battery module, the voltage of battery package, data such as temperature, battery management system BMS need occupy certain space, thereby the battery module has been increased, the occupation volume of battery package. Along with the limitation of the application field and the use space, higher requirements are put forward on the structure and the volume of the battery module, and the structures of a plurality of existing battery modules cannot meet the requirements of customers.
Disclosure of Invention
The invention aims to provide a battery module which is simple and compact in structure, small in size and convenient to install. Meanwhile, the invention also provides a battery pack manufactured by using the battery module.
The invention is realized by the following scheme:
a battery module comprises two end fixing plates, a front cover plate, a rear cover plate, a plurality of groups of battery packs and a BMS control panel (namely a battery management system control panel), wherein the end fixing plates are provided with a plurality of through holes which are arranged in parallel in rows, the periphery of the outward side surface of each end fixing plate is provided with a circle of protruding parts, the inward side surface of each end fixing plate is provided with a plurality of protruding cylinders which are communicated with the through holes in a one-to-one correspondence manner, the front cover plate is provided with an external communication socket, a total positive leading-out terminal perforation and a total negative leading-out terminal perforation, two ends of the plurality of groups of battery packs are respectively sleeved in the protruding cylinders of the two end fixing plates, two pole ends of the battery packs respectively penetrate through the through holes of the end fixing plates and are partially exposed, the plurality of groups of battery packs are mutually connected in series or/parallel, and the BMS control panel, be provided with total positive leading-out terminal, total negative leading-out terminal and the female end of communication plug connector on the BMS control panel, the total positive leading-out terminal, total negative leading-out terminal and a plurality of group of the group battery of establishing ties each other or/and parallelly connected of BMS control panel total positive terminal, total negative terminal one-to-one are connected, the battery management system of BMS control panel is used for monitoring battery module's temperature, voltage data, the front shroud is supporting to merge together with the fixed terminal of nested BMS control panel and the BMS control panel total positive leading-out terminal, total negative leading-out terminal, the female end of communication plug connector correspond in proper order and wear the cover in the perforation of the total positive leading-out terminal of front shroud, total negative leading-out terminal, in the external communication plug connector, the back shroud is supporting. During actual manufacture, in order to facilitate connection and use of the battery module, threaded holes can be respectively formed in the total positive lead-out terminal and the total negative lead-out terminal of the BMS control board.
Further, be provided with at least one fixed snap ring between two adjacent groups of batteries, fixed snap ring includes the body, bilateral symmetry is provided with at least a pair of circular arc draw-in groove that has the breach on the body, and lateral surface relative between two circular arc draw-in grooves relative between two adjacent circular arc draw-in grooves with one side, two circular arc draw-in grooves uppermost and the bottom is the level and smooth tangent plane, the logarithm of the circular arc draw-in groove of fixed snap ring is the same with the line number of the through-hole of end fixing plate, the circular arc draw-in groove top-down one-to-one of fixed snap ring.
Furthermore, the body of the fixed snap ring is positioned at the middle position of the four adjacent circular arc clamping grooves and is provided with a pull rod through hole, a pull rod is arranged between the four adjacent battery packs, the pull rod is sleeved in the pull rod through hole of the fixed snap ring in a penetrating mode, and the two ends of the pull rod are respectively fixed on the corresponding end fixing plates. The number of the pull rods can be adjusted and designed according to needs, and the number of the pull rods is generally more than two.
Furthermore, the front cover plate and the end fixing plate of the nested BMS control plate and the rear cover plate and the other end fixing plate are matched and combined together in a buckling mode. During actual manufacturing, the peripheries of the front cover plate and the rear cover plate are provided with clamping blocks, and the outer side surfaces of the peripheries of the end fixing plates are provided with clamping holes; or the outer side surfaces of the peripheries of the front cover plate and the rear cover plate are provided with clamping holes, the periphery of the end fixing plate is provided with clamping blocks, and the clamping blocks and the clamping holes are correspondingly matched and embedded together one by one.
Further, an LED lamp post and a key switch are arranged on the front cover plate, the LED lamp post is used for displaying the charge quantity of the battery module, and the key switch is used for controlling the on-off of the battery module and a circuit of an external power utilization component.
Furthermore, a guide strip is arranged on the inner side surface of the convex part of the end fixing plate facing the outer side surface. The setting of gib block can guide the installation of BMS control panel, positioning deviation when preventing the installation.
During actual manufacture, glue solutions can be coated between the front cover plate and the corresponding end fixing plates and between the rear cover plate and the corresponding end fixing plates, so that the end face of each battery pack and the BMS control plate have good waterproof and dustproof performances.
A battery pack comprises a plurality of battery modules, wherein the battery modules are connected in series or/and in parallel.
The battery module is simple and compact in structure and small in size, and the components of the battery management system are integrated on the PCB to form the BMS control panel, so that the assembly and debugging time can be reduced, the later maintenance is convenient, the whole installation is convenient, and the structure is stable. The battery pack manufactured by using the battery modules is convenient to assemble, each battery module has a communication function, each battery module is convenient to control, and the whole pack efficiency and safety of the battery pack are greatly improved.
Drawings
Fig. 1 is a schematic view of the overall structure of a battery module in embodiment 1;
fig. 2 is an exploded view of the battery module according to example 1;
FIG. 3 is a schematic view showing the assembly of the end fixing plate and the front cover plate in embodiment 1;
fig. 4 is a schematic structural view of an end fixing plate in embodiment 1;
FIG. 5 is a schematic structural view of a front cover plate in embodiment 1;
FIG. 6 is a schematic structural view of a retainer ring according to embodiment 1;
fig. 7 is a schematic structural view of the BMS control board of embodiment 1.
Detailed Description
The present invention will be further described with reference to the following examples, but the present invention is not limited to the description of the examples.
Example 1
A battery module comprises two end fixing plates 1, a front cover plate 2, a rear cover plate 3, ten groups of battery packs 4 and a BMS control panel (namely a battery management system control panel) 5, as shown in figures 3 and 4, ten through holes 1-1 which are arranged in two rows and in parallel (in five rows) are formed in each end fixing plate 1, raised parts 1-2 which form a circle are arranged on the periphery of the outward side surface of each end fixing plate 1, guide strips 1-3 are arranged on the inner side surfaces of the raised parts 1-2 on the outward side surface of each end fixing plate 1, ten raised cylinders 1-4 are arranged on the inward side surface of each end fixing plate 1, the raised cylinders 1-4 are communicated with the through holes 1-1 in a one-to-one correspondence mode, as shown in figure 5, an external communication socket 2-1 and a positive leading-out terminal through hole 2-2 are arranged on the front cover plate 2, The battery pack comprises a main negative leading-out terminal through hole 2-3, LED lamp posts 2-4 and a key switch 2-5, wherein the LED lamp posts 2-4 are used for displaying the charge quantity of a battery module, the key switch 2-5 is used for controlling the on-off of a circuit of the battery module and an external electric component, two ends of ten groups of battery packs 4 are respectively sleeved in convex cylinders 1-4 of two end fixing plates 1, two pole ends of the battery packs 4 respectively penetrate through holes 1-1 of the end fixing plates 1 and are partially exposed, the ten groups of battery packs 4 are mutually connected in series, two fixing snap rings 6 are arranged between two adjacent columns of battery packs 4, as shown in figure 6, each fixing snap ring 6 comprises a body 6-1, two pairs of arc clamping grooves 6-2 with notches are symmetrically arranged on the left and right of the body 6-1, and the outer side faces, The outer side surfaces opposite to each other between the two uppermost and lowermost circular arc clamping grooves are smooth tangent surfaces, the number of pairs of the circular arc clamping grooves 6-2 of the fixed clamping ring 6 is the same as the number of lines of the through holes 1-1 of the end fixing plate 1, the body 6-1 of the fixed clamping ring 6 is positioned at the middle position of the four adjacent circular arc clamping grooves 6-2 and is provided with pull rod through holes 6-3, the circular arc clamping grooves 6-2 of the fixed clamping ring 6 are used for clamping single batteries of the corresponding battery packs 4 from top to bottom in a one-to-one correspondence manner, pull rods 7 are arranged between the four adjacent battery packs 4, the pull rods 7 are sleeved in the pull rod through holes 6-3 of the fixed clamping ring 6 in a penetrating manner, two ends of each pull rod 7 are respectively fixed on the corresponding end fixing plate 1, two pull rods 7 are arranged in the embodiment 1, the two pull rods 7 are respectively arranged between the four adjacent In the space, as shown in fig. 7, a total positive leading-out terminal 5-1, a total negative leading-out terminal 5-2 and a communication plug connector female terminal 5-3 are arranged on a BMS control board 5, threaded holes are respectively arranged on the total positive leading-out terminal 5-1 and the total negative leading-out terminal 5-2 of the BMS control board 5, the total positive leading-out terminal 5-1 and the total negative leading-out terminal 5-2 of the BMS control board 5 are correspondingly connected with the total positive end and the total negative end of ten groups of battery packs 4 which are mutually connected in series one by one, a battery management system BMS of the BMS control board 5 is used for monitoring the temperature and voltage data of the battery modules, clamping blocks 2-6 and 3-1 are arranged on the peripheries of a front cover plate 2 and a rear cover plate 3, clamping holes 1-5 are arranged on the peripheral outer side surface of a fixed plate 1, as shown in fig. 3, the clamping blocks 2-6 of the front cover plate 2 are correspondingly, thereby realizing that the front cover plate 2 is matched and combined with the end fixing plate 1 of the nested BMS control plate 5 in a buckling mode, and the total positive leading-out terminal 5-1, the total negative leading-out terminal 5-2 and the communication plug connector female end 5-3 of the BMS control plate 5 are sequentially and correspondingly sleeved in the total positive leading-out terminal perforation 2-2, the total negative leading-out terminal perforation 2-3 and the external communication plug socket 2-1 of the front cover plate 2, as shown in figure 1, the fixture blocks 3-1 of the rear cover plate 3 are matched and embedded with the fixture holes 1-5 of the other end fixing plate 1 one by one, thereby realizing that the rear cover plate 3 is matched and combined with the other end fixing plate 1 in a buckling mode, and simultaneously coating glue solution between the front cover plate 2 and the corresponding end fixing plate 1 and between the rear cover plate 3 and the corresponding end fixing plate 1, so that the end face, the end face, BMS control panel has better waterproof, dustproof performance.
Example 2
A battery module having a structure similar to that of the battery module of embodiment 1, except that: the battery packs are fifteen in number, fifteen through holes which are arranged in parallel in three rows (in five rows) are formed in the end fixing plate, fifteen convex cylinders of the end fixing plate are provided, three fixing snap rings are arranged between two adjacent rows of battery packs, the number of pairs of arc clamping grooves of the fixing snap rings is three, the fifteen battery packs are connected in parallel in the same row and then connected in series in each row, eight pull rods are arranged in the embodiment 2, and one pull rod is respectively arranged between each four adjacent battery packs; the total positive leading-out terminal and the total negative leading-out terminal of the BMS control board are connected with the total positive terminal and the total negative terminal of the fifteen groups of battery packs which are connected in parallel in the same row and then connected in series in each row in a one-to-one correspondence manner, clamping holes are formed in the peripheral outer side surfaces of the front cover plate and the rear cover plate, clamping blocks are arranged on the periphery of the fixed cover plate, the clamping holes of the front cover plate are matched and embedded with the clamping blocks of the end fixing plates of the nested BMS control board in a one-to-one correspondence manner, and the clamping holes of the.
Example 3
A battery pack comprising a plurality of battery modules as set forth in embodiment 1, the plurality of battery modules being connected in series with each other.
Claims (7)
1. A battery module, its characterized in that: the battery pack comprises two end fixing plates, a front cover plate, a rear cover plate, a plurality of battery packs and a BMS control panel, wherein the end fixing plates are provided with a plurality of through holes which are arranged in parallel in rows, the periphery of the outward side surface of each end fixing plate is provided with a circle of raised parts, the inward side surface of each end fixing plate is provided with a plurality of raised cylinders which are communicated with the through holes in a one-to-one correspondence manner, the front cover plate is provided with an external communication socket, a total positive leading-out terminal perforation and a total negative leading-out terminal perforation, the two ends of the plurality of battery packs are respectively sleeved in the raised cylinders of the two end fixing plates, the two pole ends of each battery pack respectively penetrate through the through holes of the end fixing plates and are partially exposed, the plurality of battery packs are mutually connected in series or/parallel, and the BMS control panel is, be provided with total positive leading-out terminal, total negative leading-out terminal and the female end of communication plug connector on the BMS control panel, the total positive leading-out terminal, total negative leading-out terminal and a plurality of group of the group battery of establishing ties each other or/and parallelly connected of BMS control panel total positive terminal, total negative terminal one-to-one are connected, the battery management system of BMS control panel is used for monitoring battery module's temperature, voltage data, the front shroud is supporting to merge together with the fixed terminal of nested BMS control panel and the BMS control panel total positive leading-out terminal, total negative leading-out terminal, the female end of communication plug connector correspond in proper order and wear the cover in the perforation of the total positive leading-out terminal of front shroud, total negative leading-out terminal, in the external communication plug connector, the back shroud is supporting.
2. The battery module according to claim 1, wherein: adjacent two are provided with at least one fixed snap ring between the group battery, fixed snap ring includes the body, bilateral symmetry is provided with at least a pair of circular arc draw-in groove that has the breach on the body, and lateral surface relative between two circular arc draw-in grooves relative between two adjacent circular arc draw-in grooves of same side, uppermost and the bottom is the level and smooth tangent plane, the logarithm of the circular arc draw-in groove of fixed snap ring is the same with the line number of through-hole of end fixing plate, the circular arc draw-in groove top-down one-to-one of fixed snap ring blocks the battery cell of corresponding.
3. The battery module according to claim 2, wherein: the body of the fixed snap ring is positioned in the middle of the four adjacent arc clamping grooves, a pull rod through hole is formed in the body, a pull rod is arranged between the four adjacent battery packs, the pull rod is sleeved in the pull rod through hole of the fixed snap ring in a penetrating mode, and the two ends of the pull rod are fixed on the corresponding end fixing plates respectively.
4. The battery module according to claim 2, wherein: the front cover plate and the end fixing plate of the nested BMS control plate, and the rear cover plate and the other end fixing plate are matched and combined together in a buckling mode.
5. The battery module according to claim 1, wherein: the LED lamp post is used for displaying the charge quantity of the battery module, and the key switch is used for controlling the on-off of the circuit of the battery module and an external power utilization component.
6. The battery module according to any one of claims 1 to 5, wherein: and a guide strip is arranged on the inner side surface of the convex part of the end fixing plate facing the outer side surface.
7. A battery pack, comprising: the battery pack comprises a plurality of battery modules according to any one of claims 1 to 6, wherein the plurality of battery modules are connected in series or/and in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010257322.XA CN111564584A (en) | 2020-04-03 | 2020-04-03 | Battery module and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010257322.XA CN111564584A (en) | 2020-04-03 | 2020-04-03 | Battery module and battery pack |
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| Publication Number | Publication Date |
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| CN111564584A true CN111564584A (en) | 2020-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010257322.XA Pending CN111564584A (en) | 2020-04-03 | 2020-04-03 | Battery module and battery pack |
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| CN (1) | CN111564584A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112290153A (en) * | 2020-09-28 | 2021-01-29 | 东风汽车集团有限公司 | Power battery's installing support assembly |
| CN114976505A (en) * | 2022-07-28 | 2022-08-30 | 合力（天津）能源科技股份有限公司 | Underground high-power battery nipple |
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| CN207504060U (en) * | 2017-11-20 | 2018-06-15 | 湖南科霸汽车动力电池有限责任公司 | Battery pack die set and battery module |
| CN208336450U (en) * | 2018-05-24 | 2019-01-04 | 凤凰新能源(惠州)有限公司 | A kind of novel high-energy density dynamic battery pack |
| CN208848962U (en) * | 2018-09-29 | 2019-05-10 | 湖南科霸汽车动力电池有限责任公司 | Circular batteries mould group fixes bracket and circular batteries mould group with end |
| CN109659464A (en) * | 2019-01-09 | 2019-04-19 | 郑州比克新能源汽车有限公司 | Battery modules |
| CN209607802U (en) * | 2019-04-24 | 2019-11-08 | 湖南科霸汽车动力电池有限责任公司 | The combination of battery pack mould group and battery module |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112290153A (en) * | 2020-09-28 | 2021-01-29 | 东风汽车集团有限公司 | Power battery's installing support assembly |
| CN112290153B (en) * | 2020-09-28 | 2021-09-17 | 东风汽车集团有限公司 | Power battery's installing support assembly |
| CN114976505A (en) * | 2022-07-28 | 2022-08-30 | 合力（天津）能源科技股份有限公司 | Underground high-power battery nipple |
| CN114976505B (en) * | 2022-07-28 | 2022-11-04 | 合力（天津）能源科技股份有限公司 | Underground high-power battery short joint |
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Effective date of registration: 20210722 Address after: 41st floor, China energy storage building, 3099 Keyuan South Road, Yuehai street, Nanshan District, Shenzhen, Guangdong 518000 Applicant after: NATIONAL ENGINEERING RESEARCH CENTER OF ADVANCED ENERGY STORAGE MATERIALS (SHEN ZHEN) Co.,Ltd. Address before: 410205 No. 348, west slope, Tongzi high tech Development Zone, Hunan, Changsha Applicant before: HUNAN COPOWER EV BATTERY Co.,Ltd. |
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Application publication date: 20200821 |