CN220021510U - Connecting busbar, busbar assembly, welding-free battery cell bracket and battery - Google Patents
Connecting busbar, busbar assembly, welding-free battery cell bracket and battery Download PDFInfo
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- CN220021510U CN220021510U CN202321635476.3U CN202321635476U CN220021510U CN 220021510 U CN220021510 U CN 220021510U CN 202321635476 U CN202321635476 U CN 202321635476U CN 220021510 U CN220021510 U CN 220021510U
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- busbar
- abutting part
- pole
- battery cell
- steel shell
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 51
- 239000010959 steel Substances 0.000 claims abstract description 51
- 238000000605 extraction Methods 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000003466 welding Methods 0.000 abstract description 9
- 239000000178 monomer Substances 0.000 abstract description 6
- 238000004146 energy storage Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
Classifications
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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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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model relates to the technical field of energy storage devices, and particularly discloses a connecting busbar, a busbar assembly, a welding-free battery core bracket and a battery, wherein the connecting busbar comprises a first plate body, a second plate body which is lower than the first plate body in position and a connecting plate for connecting the first plate body and the second plate body; the first plate body is provided with a plurality of annular connection row steel shell butt parts, and the second plate body is provided with a plurality of connection row pole butt parts protruding upwards. According to the connecting busbar, the busbar assembly, the welding-free battery cell bracket and the battery, the adjacent battery cell monomers can be electrically connected without welding.
Description
Technical Field
The utility model relates to the technical field of energy storage devices, in particular to a connecting busbar, a busbar assembly, a welding-free battery cell bracket and a battery.
Background
The battery comprises a plurality of battery core monomers, and the adjacent battery core monomers are connected in series or in parallel through the bus bars. Typically, the bus bars are in a flat plate structure, and each cell unit is welded with the corresponding bus bar. The welding connection mode has the defects of irremovable, easy penetration of the bus bar, additional welding procedures and the like.
Therefore, improvements to the existing bus bar are needed to solve the problem that the existing bus bar needs to be welded to realize the electric connection operation between the adjacent battery cell units, so that a plurality of inconveniences are caused.
The above information disclosed in this background section is only included to enhance understanding of the background of the disclosure and therefore may contain information that does not form the prior art that is presently known to those of ordinary skill in the art.
Disclosure of Invention
An object of the present utility model is to provide a connecting bus bar, a bus bar assembly, a welding-free battery cell holder and a battery, which can complete electrical connection between adjacent battery cells without welding.
In order to achieve the above object, in one aspect, the present utility model provides a connecting busbar, including a first plate, a second plate located lower than the first plate, and a connecting plate connecting the first plate and the second plate;
the first plate body is provided with a plurality of annular connection row steel shell butt parts, and the second plate body is provided with a plurality of connection row pole butt parts protruding upwards.
Optionally, the second plate body is provided with a dodging hole corresponding to a position right below the abutting part of each connecting row of pole.
Optionally, the connection row pole abutment portion includes a circular elastic sheet higher than the avoidance hole and an elastic connection portion connecting the circular elastic sheet to a hole wall of the avoidance hole;
or, the connection row pole abutment part comprises a plurality of fan-shaped elastic pieces higher than the avoidance holes, and each fan-shaped elastic piece is connected to the hole wall of each avoidance hole through an elastic connection part.
In another aspect, there is provided a bus bar assembly comprising:
the connecting bus bars are sequentially arranged, and the connecting bar steel shell abutting part of each connecting bus bar extends to the position right above the connecting bar pole abutting part of the last connecting bus bar and is arranged in an insulating way with the corresponding connecting bar pole abutting part at intervals;
the positive electrode extraction busbar is provided with an extraction busbar pole abutting part extending to the position right below the connecting bar steel shell abutting part of the first connecting busbar; the lead-out bar pole abutting part is arranged in an insulating way with the connecting bar steel shell abutting part of the first connecting busbar piece at intervals;
the negative electrode extraction busbar is provided with an annular extraction busbar steel shell abutting part extending to the right lower part of the connection busbar steel shell abutting part of the last connection busbar; the leading-out bar steel shell abutting part and the last connecting bar steel shell abutting part of the connecting busbar piece are arranged in an insulating mode at intervals.
Optionally, the leading-out row pole abutting part is in a wavy structure.
In yet another aspect, a solderless cell holder is provided, comprising:
the busbar assembly;
the bus bar assembly comprises a support body, wherein the bus bar assembly is fixed in the support body through in-mold injection molding, and a battery cell slot is formed in the position of the support body corresponding to each connecting bar steel shell abutting part.
Optionally, a positive-electrode lead-out busbar of the busbar assembly is provided with a positive external electric sheet extending to the outside of the bracket body;
the negative electrode lead-out busbar of the busbar assembly is provided with a negative external electric sheet extending to the outside of the bracket body.
Optionally, the connection row steel shell abutting part is attached to the edge position of the bottom of the battery cell slot;
the center position of the bottom of the battery cell slot is provided with a pole accommodating groove, and the connecting row pole abutting part and the leading-out row pole abutting part are both positioned in the corresponding pole accommodating groove.
Optionally, a space is reserved between the bottom of the pole accommodating groove and the corresponding connection row pole abutting part or the extraction row pole abutting part.
In yet another aspect, a battery is provided, including the solderless battery cell support, a plurality of battery cell units inserted into the solderless battery cell support, and a battery cell cover plate for pressing each battery cell unit in cooperation with the solderless battery cell support.
The utility model has the beneficial effects that: the utility model provides a connecting busbar, busbar subassembly, exempt from to weld electric core support and battery, two adjacent rows of electric core monomers respectively with connecting busbar elasticity butt, can realize establishing ties, need not the welding operation, can effectively avoid the problem that the welded connection structure leads to.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a schematic structural view of a battery provided in an embodiment;
fig. 2 is a schematic structural diagram of a cell unit according to an embodiment;
fig. 3 is a schematic structural diagram of a solderless battery cell holder according to an embodiment;
FIG. 4 is a schematic diagram of a bus assembly according to an embodiment;
FIG. 5 is a schematic diagram of a positive electrode lead-out bus bar according to an embodiment;
FIG. 6 is a schematic diagram of a circular spring plate-like connection bus bar according to an embodiment;
FIG. 7 is a schematic diagram of a fan-shaped spring plate-shaped connecting bus bar according to an embodiment;
FIG. 8 is a schematic cross-sectional view of a battery provided in an embodiment;
fig. 9 is a partially enlarged schematic view of fig. 8 at a.
In the figure:
100. a welding-free battery cell bracket;
200. a cell unit; 200a, a cell steel shell; 200b, an electric core pole; 200c, insulating rings;
300. a cell cover plate;
1. the positive electrode leads out a busbar; 101. a lead-out row pole abutting part; 102. a positive external electric sheet;
2. a connecting bus; 201. a first plate body; 2011. connecting the abutting parts of the steel shell; 202. a second plate body; 2021. a connection row pole abutting part; 2021a, circular shrapnel; 2021b, elastic connection; 2021c, a fan-shaped shrapnel; 2022. avoidance holes; 203. a connecting plate;
3. a negative electrode leading-out busbar; 301. leading out a steel shell abutting part; 302. a negative external electric plate;
4. a bracket body; 401. a cell slot; 402. a pole accommodating groove; 403. the space is divided.
Detailed Description
In order to make the objects, features and advantages of the present utility model more obvious and understandable, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the embodiments described below are only some embodiments of the present utility model, not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it will be understood that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.
Furthermore, the terms "long," "short," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, for convenience of description of the present utility model, and are not intended to indicate or imply that the apparatus or elements referred to must have this particular orientation, operate in a particular orientation configuration, and thus should not be construed as limiting the utility model.
The present utility model will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the utility model and structural, methodological, or functional modifications of these embodiments that may be made by one of ordinary skill in the art are included within the scope of the utility model.
The utility model provides a connecting busbar, a busbar assembly, a welding-free battery cell bracket and a battery, which are suitable for application scenes of storing electric energy, can complete electric connection between adjacent battery cell monomers without welding, and can effectively avoid a plurality of problems caused by a welding connection structure.
Referring to fig. 1, in this embodiment, the battery includes a solderless battery cell holder 100, a plurality of battery cells 200 inserted into the solderless battery cell holder 100, and a battery cell cover 300 that cooperates with the solderless battery cell holder 100 to compress each battery cell 200.
First, the description is made with respect to the cell unit 200. Referring to fig. 2, the battery cell 200 includes a battery cell steel shell 200a as a negative electrode and a pole as a positive electrode, a first end face of the battery cell steel shell 200a is provided with a pole hole, and a battery cell pole 200b is installed in the pole hole through an insulating ring 200c, so that the battery cell pole 200b can be used as a positive electrode contact of the whole battery cell 200, and an edge position of the first end face of the battery cell steel shell 200a can be used as a negative electrode contact of the whole battery cell 200, that is, for the battery cell 200, the positive electrode and the negative electrode are arranged at the same end.
Next, description will be made with respect to the solderless cell holder 100. Referring to fig. 3, the solderless cell holder 100 comprises a holder body 4 and a busbar assembly which is injection-molded and fixed in the holder body 4.
Specifically, referring to fig. 4, the busbar assembly includes one positive electrode lead-out busbar 1, a plurality of connecting busbars 2 arranged in sequence, and one negative electrode lead-out busbar 3.
Referring to fig. 6, the connection bus bar 2 includes a first plate 201, a second plate 202 positioned lower than the first plate 201, and a connection plate 203 connecting the first plate 201 and the second plate 202; the first plate 201 is provided with a plurality of annular connection row steel shell abutting portions 2011, and the second plate 202 is provided with a plurality of connection row pole abutting portions 2021 protruding upwards.
Further, referring to fig. 4, 8 and 9, the connection bar steel shell abutment 2011 of each connection busbar 2 extends directly above the connection bar post abutment 2021 of the previous connection busbar 2 and is disposed at a distance from the corresponding connection bar post abutment 2021.
In this embodiment, referring to fig. 4 and 5, the positive electrode lead-out busbar 1 is provided with a lead-out post abutment portion 101 extending to a position just below a connection-row steel-shell abutment portion 2011 of the first of the connection busbars 2; wherein, the lead-out bar pole abutting part 101 is arranged in an insulating way with the connecting bar steel shell abutting part 2011 of the first connecting busbar 2;
the negative electrode lead-out busbar 3 is provided with an annular lead-out busbar steel shell abutting part 301 extending to the right lower part of the connecting bar steel shell abutting part 2011 of the last connecting busbar 2; the lead-out bar steel shell abutting portion 301 and the last connecting bar steel shell abutting portion 2011 of the connecting busbar 2 are arranged in an insulating mode at intervals.
Correspondingly, the bracket body 4 is provided with a battery cell slot 401 corresponding to the position of each connection row steel shell abutting part 2011.
The battery provided in this embodiment is manufactured as follows:
s10: placing the positive electrode lead-out bus bar 1, a plurality of connecting bus bars 2 and the negative electrode lead-out bus bar 3 into a die cavity for manufacturing the bracket body 4, and manufacturing the welding-free battery core bracket 100 through an in-die injection molding process;
s20: each cell unit 200 is inverted and loaded into the corresponding cell slot 401, at which time:
on the other hand, the edge position of the first end surface of the cell steel shell 200a is just abutted against the connection row steel shell abutment portion 2011 or the extraction row steel shell abutment portion 301 (specifically, only the cell steel shell 200a of the cell unit 200 of the last row is connected to the extraction row steel shell abutment portion 301, and all the cell steel shells 200a of the cell units 200 of the other rows are connected to the connection row steel shell abutment portion 2011);
on the other hand, the end face of the cell terminal 200b is just elastically abutted against the lead-out row terminal abutment portion 101 or the connection row terminal abutment portion 2021 (specifically, only the cell terminal 200b of the first row of cell units 200 is connected by the lead-out row terminal abutment portion 101, and all the cell terminals 200b of the remaining rows of cell units 200 are connected by the connection row terminal abutment portion 2021);
s30: the cell cover plate 300 is installed (the cell cover plate 300 can be in fastening connection or clamping connection with the bracket body 4, etc.), so that each cell unit 200 is tightly attached to the busbar assembly, the reliability of electric connection is ensured, and poor contact is avoided.
Since the cell terminal 200b protrudes from the first end surface of the cell steel can 200a, the position of the terminal contact portion is lower than the steel can contact portion in this embodiment. Optionally, the connection row post abutment 2021 is flush with the extraction row post abutment 101, and the connection row steel can abutment 2011 is flush with the extraction row steel can abutment 301.
The distance dimension between the top surface of the connecting bar pole abutment portion 2021 of the preceding connecting bus bar 2 and the top surface of the connecting bar steel shell abutment portion 2011 of the following connecting bus bar 2 is referred to as "spring piece spacing distance dimension"; the height dimension of the cell post 200b protruding from the first end surface of the cell steel can 200a is referred to as the "post height dimension". In this embodiment, the size of the spacing distance between the spring plates is slightly smaller than the height of the pole, and such a size limitation can make the connection row pole abutting portion 2021 abut against the connection row pole abutting portion 2021 downwards when the battery cell cover plate 300 drives the first end surface of the battery cell steel shell 200a to abut against the connection row steel shell abutting portion 2011 downwards, so that the connection row pole abutting portion 2021 deforms downwards, so that the connection row pole abutting portion 2021 can abut against the battery cell pole 200b more closely, and poor contact is avoided.
Accordingly, referring to fig. 8 and 9, the connection bar steel case abutment 2011 is attached to the edge of the bottom of the battery slot 401. A pole accommodating groove 402 is provided at the center of the groove bottom of the battery core slot 401, and the connection row pole abutting portion 2021 and the extraction row pole abutting portion 101 are both located in the corresponding pole accommodating groove 402. A space 403 is left between the bottom of the pole accommodating groove 402 and the corresponding connection row pole abutting portion 2021 or extraction row pole abutting portion 101, so that the pole abutting portion can deform downward.
Optionally, as shown in fig. 6, the second plate 202 is provided with a relief hole 2022 corresponding to a position directly below each connection row of pole abutment portions 2021. The connection row pole abutting portion 2021 includes a circular elastic piece 2021a higher than the escape hole 2022 and an elastic connection portion 2021b connecting the circular elastic piece 2021a to a hole wall of the escape hole 2022;
alternatively, as shown in fig. 7, the connection pole abutting portion 2021 includes a plurality of fan-shaped elastic pieces 2021c higher than the avoiding hole 2022, and each fan-shaped elastic piece 2021c is connected to the wall of the avoiding hole 2022 through an elastic connection portion 2021 b.
When the cell pole 200b is pressed against the circular spring 2021a or the fan-shaped spring 2021c, the elastic connection portion 2021b can be deformed downward and provide an upward pressing force, so that the circular spring 2021a or the fan-shaped spring 2021c presses the cell pole 200b upward, the contact is more sufficient, and the contact area is also facilitated to be increased and the contact resistance is reduced.
In this embodiment, the lead-out row pole abutting portion 101 has a wavy structure, which is beneficial to improving the elastic deformation performance of the lead-out row pole abutting portion 101.
Optionally, the positive electrode lead-out busbar 1 of the busbar assembly is provided with a positive external connection electric sheet 102 extending to the outside of the bracket body 4; the negative lead-out busbar 3 of the busbar assembly is provided with a negative external connection tab 302 extending to the outside of the bracket body 4. When the battery is used for charging and discharging, the positive external connection electric sheet 102 and the negative external connection electric sheet 302 only need to be connected.
The connecting busbar 2, the busbar assembly, the welding-free battery cell bracket 100 and the battery provided by the embodiment have the following advantages:
(1) the two adjacent rows of battery core monomers 200 are respectively elastically abutted with the connecting bus bars 2, so that the series connection can be realized, the welding operation is not needed, and a plurality of problems caused by a welding connection structure can be effectively avoided;
(2) a space 403 is left between the bottom of the pole accommodating groove 402 and the corresponding connection row pole abutting part 2021 or extraction row pole abutting part 101, when the cell unit 200 is inserted, the cell pole 200b will abut against the pole abutting part downwards, so as to improve the abutting reliability and avoid poor contact;
(3) the busbar assembly is fixed in the bracket body 4 in an in-mold injection mode, the whole structure is simple, and the assembly operation between the bracket body 4 and the busbar assembly is not needed;
(4) after the battery cell unit 200 is inserted into the battery cell slot 401, the battery cell cover plate 300 is covered, so that the battery can be assembled, the assembly process is simple and quick, and the production efficiency is high;
(5) each cell unit 200 can be independently disassembled and recycled, which is beneficial to reducing the scrapping cost.
It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.
The above list of detailed descriptions is only specific to practical embodiments of the present utility model, and they are not intended to limit the scope of the present utility model, and all equivalent embodiments or modifications that do not depart from the spirit of the present utility model should be included in the scope of the present utility model.
Claims (10)
1. A connecting bus bar characterized by comprising a first plate body (201), a second plate body (202) positioned lower than the first plate body (201), and a connecting plate (203) connecting the first plate body (201) and the second plate body (202);
the first plate body (201) is provided with a plurality of annular connection row steel shell abutting parts (2011), and the second plate body (202) is provided with a plurality of connection row pole abutting parts (2021) protruding upwards.
2. The connecting busbar according to claim 1, wherein the second plate body (202) is provided with a relief hole (2022) at a position immediately below each connecting-row pole abutment portion (2021).
3. The connecting busbar according to claim 2, wherein the connecting row post abutment (2021) includes a circular spring piece (2021 a) higher than the escape hole (2022) and an elastic connection (2021 b) connecting the circular spring piece (2021 a) to a hole wall of the escape hole (2022);
or, the connection row pole abutting part (2021) comprises a plurality of fan-shaped elastic pieces (2021 c) higher than the avoidance holes (2022), and each fan-shaped elastic piece (2021 c) is connected to the hole wall of the avoidance hole (2022) through an elastic connection part (2021 b).
4. A bus bar assembly, comprising:
a plurality of connecting buses (2) as claimed in any one of claims 1 to 3, wherein the connecting bus steel shell abutting parts (2011) of each connecting bus (2) extend to the position right above the connecting bus pole abutting part (2021) of the last connecting bus (2) and are arranged in an insulating manner at intervals with the corresponding connecting bus pole abutting part (2021);
a positive electrode lead-out busbar (1), wherein the positive electrode lead-out busbar (1) is provided with a lead-out busbar post abutting part (101) extending to the right lower part of a connecting bar steel shell abutting part (2011) of the first connecting busbar (2); the lead-out bar pole abutting part (101) is arranged in an insulating way with a connecting bar steel shell abutting part (2011) of the first connecting busbar (2) piece at intervals;
a negative electrode lead-out busbar (3), wherein the negative electrode lead-out busbar (3) is provided with an annular lead-out busbar steel shell abutting part (301) extending to the right lower part of a connecting busbar steel shell abutting part (2011) of the last connecting busbar (2); the lead-out bar steel shell abutting part (301) and the connecting bar steel shell abutting part (2011) of the last connecting busbar (2) piece are arranged in an insulating mode at intervals.
5. The busbar assembly according to claim 4, wherein the lead-out post abutment (101) is of a wave-like structure.
6. A solderless cell support, comprising:
the busbar assembly of claim 4 or 5;
the bus bar assembly comprises a support body (4), wherein the bus bar assembly is fixed in the support body (4) in an in-mold injection mode, and the position of the support body (4) corresponding to each connecting row steel shell abutting part (2011) is provided with a battery cell slot (401).
7. The solderless cell holder according to claim 6, characterized in that the positive-electrode outgoing busbar (1) of the busbar assembly is provided with a positive-external electrical tab (102) extending outside the holder body (4);
the negative electrode lead-out busbar (3) of the busbar assembly is provided with a negative external connection electric sheet (302) extending to the outside of the bracket body (4).
8. The solderless cell holder of claim 6, wherein the connection row steel case abutment (2011) is attached to the edge position of the bottom of the cell slot (401);
a pole accommodating groove (402) is formed in the center of the groove bottom of the battery cell slot (401), and the connection row pole abutting part (2021) and the extraction row pole abutting part (101) are both located in the corresponding pole accommodating groove (402).
9. The solderless cell holder according to claim 8, wherein a space (403) is left between the bottom of the terminal receiving groove (402) and the corresponding connection row terminal abutment portion (2021) or extraction row terminal abutment portion (101).
10. A battery, characterized by comprising a welding-free battery cell support (100) according to any one of claims 6-9, a plurality of battery cell units (200) inserted into the welding-free battery cell support (100), and a battery cell cover plate (300) matched with the welding-free battery cell support (100) to compress each battery cell unit (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321635476.3U CN220021510U (en) | 2023-06-26 | 2023-06-26 | Connecting busbar, busbar assembly, welding-free battery cell bracket and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321635476.3U CN220021510U (en) | 2023-06-26 | 2023-06-26 | Connecting busbar, busbar assembly, welding-free battery cell bracket and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220021510U true CN220021510U (en) | 2023-11-14 |
Family
ID=88679477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321635476.3U Active CN220021510U (en) | 2023-06-26 | 2023-06-26 | Connecting busbar, busbar assembly, welding-free battery cell bracket and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220021510U (en) |
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2023
- 2023-06-26 CN CN202321635476.3U patent/CN220021510U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 215500 No. 68, Xin'anjiang Road, Southeast street, Changshu, Suzhou, Jiangsu Patentee after: Jiangsu Zhengli New Energy Battery Technology Co.,Ltd. Country or region after: China Address before: 215500 No. 68, Xin'anjiang Road, Southeast street, Changshu, Suzhou, Jiangsu Patentee before: Jiangsu Zenergy Battery Technologies Co.,ltd Country or region before: China |
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| CP03 | Change of name, title or address |