CN208385543U - Single battery, battery modules, power battery and electric car - Google Patents
Single battery, battery modules, power battery and electric car Download PDFInfo
- Publication number
- CN208385543U CN208385543U CN201821038042.4U CN201821038042U CN208385543U CN 208385543 U CN208385543 U CN 208385543U CN 201821038042 U CN201821038042 U CN 201821038042U CN 208385543 U CN208385543 U CN 208385543U
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- battery
- tab
- battery core
- cover board
- welding foot
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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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model relates to a kind of single battery, battery modules, power battery and electric car, the single battery includes: cover board；The end of battery core group, the battery core group leads to tab；Transition plate, including main body and welding foot, main body are bent into the base portion and interconnecting piece being parallel to each other, base portion and interconnecting piece are parallel with cover board, interconnecting piece and cover board weld, and welding foot is connected with the edge of base portion, and welding foot is bent to parallel with cover board with tab welding and together with tab.Through the above technical solution, base portion, tab, interconnecting piece, welding foot and cover board are parallel with the end of battery core group, so that the distance of above-mentioned parts between any two is reduced on the direction perpendicular to cover board, to reduce cover board to the end of battery core group distance, so that the connection structure between cover board and battery core group is more compact, and then the inner space utilization rate of single battery is improved, be conducive to the capacity for improving single battery.
Description
Technical field
The utility model relates to field of batteries, and in particular, to a kind of single battery, the battery mould including the single battery
Group, the power battery including the battery modules and the electric car including the power battery.
Background technique
Currently, in single cells, as depicted in figs. 1 and 2, the connection structure of cover board 101 and battery core group 1 includes: cover board
101, the U-shaped interior leading-out piece 8 on cover board 101, battery core group 1, the cell polar ear 7 drawn from battery core group 1 and substantially it is in
Chevron shaped transition plate 2.When assembly, the upper end of transition plate 2 and U-shaped interior leading-out piece 8 are welded, by the lower end of transition plate 2 and electricity
Core tab 7 welds, and then cover board 101 is assembled on battery case 103, transition plate 2, which is extruded, in the process is bent into Fig. 2
Shown in structure.However this spline structure existing defects: due to cell polar ear 7 perpendicular to cover board 101 and transition plate 2 is in irregular
Bending state, in order to cell polar ear 7 and transition plate 2 there are enough accommodation spaces, the end of cover board 101 to battery core 1
Apart from larger, the inner space utilization rate of single battery 100 is lower.
Utility model content
The purpose of the utility model is to provide a kind of single battery, which allows to have very between cover board and battery core
Small reserved space is capable of increasing the area of the positive and negative pole material applying area of battery core.
To achieve the goals above, the utility model provides a kind of single battery, comprising: cover board；Battery core group, the battery core group
End lead to tab；Transition plate, including main body and welding foot, the main body are bent into the base portion being parallel to each other and connection
Portion, the base portion and the interconnecting piece are parallel with the cover board, and the interconnecting piece and the cover board weld, the welding foot with
The base portion is connected, and the welding foot is bent to parallel with the cover board with the tab welding and together with the tab.
Optionally, on the direction perpendicular to the cover board, the welding foot be located at the base portion and the interconnecting piece it
Between, the tab is between the welding foot and the interconnecting piece.
Optionally, the tab includes the first tab and the second tab, is offered in the main body of the transition plate along described
The elongated slot extended on cover board length direction, the main body are bent along the width direction of the elongated slot, and the welding foot is included in institute
The first welding foot and the second welding foot opposite in cover board width direction are stated, second welding foot is formed in the side of the elongated slot
At edge, second tab pass through the elongated slot with second welding foot weld and together with second welding foot towards
The direction of first welding foot is bent, and first tab welds with first welding foot and together with first leg
It is bent towards the direction of second welding foot.
Optionally, the battery core group includes the first battery core stacked gradually along the single battery thickness direction, the second electricity
Core, third battery core and the 4th battery core, first battery core stack back-to-back with second battery core, the tab of first battery core
It is bonded to form first tab with the tab of second battery core, the third battery core and the back-to-back heap of the 4th battery core
Folded, the tab of the third battery core is bonded to form second tab with the tab of the 4th battery core.
Optionally, the transition plate is made of multilayer foil, and the interconnecting piece is the hot pressing region on the transition plate.
Optionally, the welding foot and the tab ultrasonic welding or resistance welding, the interconnecting piece and the cover board swash
Photocoagulation.
Optionally, the single battery further includes insulated spacing collar, which is covered on the end of the battery core group, institute
Through slot of the tab on the insulated spacing collar is stated, the transition plate is between the cover board and insulated spacing collar.
Through the above technical solutions, base portion, tab, interconnecting piece, welding foot and cover board are parallel with the end of battery core group, make
It obtains the distance of above-mentioned parts between any two on the direction perpendicular to cover board to be reduced, to reduce cover board to battery core group
End distance so that the connection structure between cover board and battery core group is more compact, and then the inside for improving single battery is empty
Between utilization rate, be conducive to improve single battery capacity.
Another aspect according to the present utility model provides a kind of battery modules, the battery modules include multiple connection sheets and
Multiple above-mentioned single batteries, neighboring unit cell are electrically connected by the connection sheet.
Another aspect according to the present utility model, provides a kind of power battery, including backpack body and is arranged intracorporal in the packet
Battery modules, battery modules are above-mentioned battery modules.
Another aspect according to the present utility model provides a kind of electric car, which includes above-mentioned power battery.
Other feature and advantage of the utility model will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Attached drawing is to be used to provide a further understanding of the present invention, and constitute part of specification, and following
Specific embodiment be used to explain the utility model together, but do not constitute limitations of the present invention.In the accompanying drawings:
Fig. 1 is the sectional perspective schematic diagram for the single battery that the prior art provides, wherein battery case is not shown；
Fig. 2 is the partial schematic sectional view for the single battery that the prior art provides；
Fig. 3 is a kind of stereoscopic schematic diagram of the battery core group of embodiment of the utility model；
Fig. 4 to Fig. 8 is a kind of schematic diagram of the single battery assembling process of embodiment of the utility model；
Fig. 9 is a kind of partial schematic sectional view of the single battery of embodiment of the utility model；
Figure 10 be a kind of transition plate of the single battery of embodiment of the utility model in the raw when solid show
It is intended to.
Description of symbols
1 battery core group, 11 first battery core
12 second battery core, 13 third battery core
14 the 4th battery core, 2 transition plate
21 main body, 211 base portion
212 interconnecting piece, 22 first welding foot
23 second welding foot, 24 elongated slot
3 first tab, 4 second tab
5 insulated spacing collar, 51 through slot
6 side plate, 7 cell polar ear
8 U-shaped interior 100 single batteries of leading-out piece
101 cover board, 102 pole
103 shells
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein
Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, left and right " is usual
It is to be defined on the basis of the page of respective drawings, " inside and outside " refers to the inner and outer of corresponding component profile.
As shown in Fig. 3 to 10, the utility model provides a kind of single battery, comprising: cover board 101；Battery core group 1, the electricity
The end of core group 1 leads to tab；Transition plate 2, the transition plate 2 include main body 21 and welding foot, and main body 21 is bent into mutually flat
Capable base portion 211 and interconnecting piece 212, base portion 211 and interconnecting piece 212 are parallel with cover board 101, and interconnecting piece 212 and cover board 101 weld
It connects, welding foot is connected with base portion 211, and welding foot is bent to parallel with cover board 101 with tab welding and together with tab.
When assembly, firstly, transition plate 2 to be placed into the end of battery core group 1, so that the end of main body 21 and battery core group 1 is flat
Row, and by the tab welding of the welding foot of transition plate 2 and battery core group 1；Then, interconnecting piece 212 is bent to the end with battery core group 1
Portion is vertical, and cover board 101 and interconnecting piece 212 are welded；Finally, cover board 101 and interconnecting piece 212 are bent to and battery core group together
1 end is parallel.
In this way, as shown in figure 9, the end of base portion 211, tab, interconnecting piece 212, welding foot and cover board 101 with battery core group 1
Portion is parallel, so that the distance of above-mentioned parts between any two is reduced on the direction perpendicular to cover board 101, to reduce
Cover board 101 arrives the distance of the end of battery core group 1, so that the connection structure between cover board 101 and battery core group 1 is more compact, Jin Erti
The high inner space utilization rate of single battery 100, is conducive to the capacity for improving single battery 100.
Further, as shown in figure 9, on the direction perpendicular to cover board, welding foot is located at base portion 211 and interconnecting piece 212
Between, tab is between welding foot and interconnecting piece 212.
In the present invention, the tab of the extraction of battery core group 1 can be multiple for one, and specific number can be according to battery core group
The number of battery core contained in 1 determines that the utility model is without limitation.In one embodiment, such as Fig. 9 and Figure 10 institute
Show, tab includes the first tab 3 and the second tab 4, offers in the main body 21 of transition plate 2 and extends along cover board length direction
Elongated slot 24, main body 21 are bent along the width direction of elongated slot 24 to form base portion 211 and interconnecting piece 212, and welding foot is included in cover board
Opposite the first welding foot 22 and the second welding foot 23, the second welding foot 23 are formed in the edge of elongated slot 24 in width direction,
Second tab 4 passes through elongated slot 24 to weld and with the second welding foot 23 with the second welding foot 23 together towards the first welding foot 22
Direction bending, the first tab 3 and the welding of the first welding foot 22 are simultaneously bent towards the direction of the second welding foot 23 together.
When assembly, firstly, transition plate 2 to be placed into the end of battery core group 1, so that the main body 21 of transition plate 2 and battery core group 1
End it is parallel, the first tab 3 is bonded with the first welding foot 22, and the second tab 4 stretches out from the elongated slot 24 of transition plate 2 and with
The fitting of two welding foots 23；Then, the first welding foot 22 and the first tab 3 are welded, the second welding foot 23 and the second tab 4 weld
It connects；Later, by the first welding foot 22,90-degree bent is together with parallel with the end of battery core group 1 with the first tab 3, by the second welding
With the second tab 4 together towards the direction 90-degree bent of the first welding foot 22 with parallel with the end of battery core group 1, first welds foot 23
The overbending direction of pin 22 and the second welding foot 23 is opposite；Then, main body 21 is formed and battery core group along 24 90-degree bent of elongated slot
The parallel base portion 211 in 1 end and the interconnecting piece 212 vertical with base portion 211；Later, interconnecting piece 212 and cover board 101 are welded；
Subsequently, by cover board 101 and interconnecting piece 212 together 90-degree bent with parallel with the end of battery core group 1；Finally, cover board 101 is filled
It is fitted on battery case 103.
In the present invention, battery core number can determine according to actual needs in battery core group 1, and the utility model does not do this
Limitation.In one embodiment, as shown in figure 3, battery core group 1 includes stacking gradually along the thickness direction of single battery 100
First battery core 11, the second battery core 12, third battery core 13 and the 4th battery core 14, the first battery core 11 and the back-to-back heap of the second battery core 12
Folded, the tab of the tab of the first battery core 11 and the second battery core 12 is bonded to form the first tab 3, third battery core 13 and the 4th battery core 14
It stacks back-to-back, the tab of third battery core 13 is bonded to form the second tab 4 with the tab of the 4th battery core 14.The back-to-back knot of battery core
Structure design reduces the number that tab is drawn from battery core group 1, consequently facilitating simplifying the structure for the transition plate 2 connecting with tab.
In the present invention, transition plate 2 can be made of such as multilayers foil such as copper foil, aluminium foil, so that transition plate 2 exists
It is also easy to bend while with good conductivity.
Wherein, any suitable welding manner can be used between transition plate 2 and cover board 101 and the tab of battery core group 1, as long as
It is able to achieve being reliably connected for transition plate 2 and cover board 101 and battery core group 1.In one embodiment, welding foot and tab can
Using ultrasonic welding or resistance welding, laser welding is can be used in interconnecting piece 212 and cover board 101.In the present embodiment, due to swashing
Flush weld jointing temp is higher, each layer foil of transition plate 2 occurs in interconnecting piece 212 and 101 laser beam welding of cover board in order to prevent
The case where generating blistering layering because of high temperature between material, before the soldering process begins, can main body 21 to transition plate 2 carry out at hot pressing
Reason, so as to be in close contact between multilayer foil bubble that may be present between each layer is discharged.
In the present invention, as shown in figures 4 and 9, single battery 100 further includes insulated spacing collar 5 and side plate 6, this is absolutely
Edge spacer ring 5 is covered on the end of battery core group 1, and tab passes through the through slot 51 on insulated spacing collar 5, and transition plate 2 is located at cover board 101 and exhausted
Between edge spacer ring 5.Insulated spacing collar 5 and side plate 6 are assembled to form the frame structure for accommodating battery core group 1 to can by battery core group 1
By being fixed in battery case 103, avoid causing due to play in battery case 103 when automobile vibration, jolting because of battery core group 1
Battery core group 1 is damaged.
The assembling process of single battery 100 is briefly described below in conjunction with Fig. 3 to Fig. 8.As shown in figure 3, battery core group 1 is by 4
Battery core stacks, and the end of battery core group 1 has the first tab 3 and the second tab 4；As shown in figure 4, insulated spacing collar 5 is installed
In the end of battery core group 1, side plate 6 is mounted on to the side of battery core group 1, side plate 6 and insulated spacing collar 5 are clamped, the first tab 3 and the
Two tabs 4 are stretched out from the through slot 51 on insulated spacing collar 5；As shown in figure 5 and figure 7, firstly, transition plate 2 is placed into battery core group 1
End, so that the main body 21 of transition plate 2 is parallel with the end of battery core group 1, the first tab 3 is bonded with the first welding foot 22, and second
Tab 4 is stretched out from the elongated slot 24 of transition plate 2 and is bonded with the second welding foot 23；Then by the first welding foot 22 and the first tab
3 welding, the second welding foot 23 and the second tab 4 weld；Later, by the first welding foot 22 and the first tab 3 together 90-degree bent with
It is parallel with the end of battery core group 1, by the second welding foot 23 and the second tab 4 together towards 22 direction 90-degree bent of the first welding foot
With parallel with the end of battery core group 1；Then main body 21 is formed along 24 90-degree bent of elongated slot parallel with the end of battery core group 1
Base portion 211 and the interconnecting piece 212 vertical with base portion 211；Later, interconnecting piece 212 and cover board 101 are welded；Subsequently, such as Fig. 8
It is shown, by cover board 101 and interconnecting piece 212 together 90-degree bent with parallel with the end of battery core group 1；It is closed finally, cover board 101 is covered
On battery case 103, the assembly of single battery 100 can be completed, in this way, transition plate 2 just can be connected battery core group 1 and be located at
Pole 102 on cover board 101 realizes the charge and discharge operation of single battery 100.
Another aspect according to the present utility model provides a kind of battery modules, the battery modules include multiple connection sheets and
Multiple above-mentioned single batteries 100, neighboring unit cell 100 lead to contact pin electrical connection.
Another aspect according to the present utility model, provides a kind of power battery, including backpack body and is arranged intracorporal in the packet
Battery modules, battery modules are above-mentioned battery modules.
Another aspect according to the present utility model provides a kind of electric car, which includes above-mentioned power battery.
Preferred embodiments of the present invention, still, the utility model and unlimited are described in detail in conjunction with attached drawing above
Detail in above embodiment can be to the skill of the utility model in the range of the technology design of the utility model
Art scheme carries out a variety of simple variants, these simple variants belong to the protection scope of the utility model.
It is further to note that specific technical features described in the above specific embodiments, in not lance
It in the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the utility model is to each
No further explanation will be given for the possible combination of kind.
In addition, any combination can also be carried out between a variety of different embodiments of the utility model, as long as it is not disobeyed
The thought for carrying on the back the utility model, equally should be considered as content disclosed in the utility model.
Claims (10)
1. a kind of single battery characterized by comprising
Cover board (101)；
The end of battery core group (1), the battery core group (1) leads to tab；
Transition plate (2), including main body (21) and welding foot, the main body (21) are bent into the base portion (211) being parallel to each other and connect
Socket part (212), the base portion (211) and the interconnecting piece (212) are parallel with the cover board (101), the interconnecting piece (212)
It is welded with the cover board (101), the welding foot is connected with the base portion (211), and the welding foot and the tab welding are simultaneously
It is bent to together with the tab parallel with the cover board (101).
2. single battery according to claim 1, which is characterized in that on the direction perpendicular to the cover board (101), institute
Welding foot is stated between the base portion (211) and the interconnecting piece (212), the tab is located at the welding foot and the company
Between socket part (212).
3. single battery according to claim 2, which is characterized in that the tab includes the first tab (3) and the second pole
Ear (4) offers the elongated slot (24) extended along the cover board (101) length direction in the main body (21) of the transition plate (2),
The main body (21) bends along the width direction of the elongated slot (24), and the welding foot includes the phase in the cover board width direction
Pair the first welding foot (22) and the second welding foot (23), second welding foot (23) is formed in the edge of the elongated slot (24)
Place, second tab (4) pass through the elongated slot (24) to weld with second welding foot (23) and weld with described second
Foot (23) is bent towards the direction of first welding foot (22) together, first tab (3) and first welding foot
(22) it welds and is bent together towards the direction of second welding foot (23) with first welding foot (22).
4. single battery according to claim 3, which is characterized in that the battery core group (1) includes along the single battery
(100) the first battery core (11), the second battery core (12), third battery core (13) and the 4th battery core that thickness direction stacks gradually
(14), first battery core (11) and second battery core (12) stack back-to-back, the tab of first battery core (11) and institute
The tab for stating the second battery core (12) is bonded to form first tab (3), the third battery core (13) and the 4th battery core
(14) it stacks back-to-back, the tab of the third battery core (13) is bonded to form described second with the tab of the 4th battery core (14)
Tab (4).
5. single battery according to claim 1, which is characterized in that the transition plate (2) is made of multilayer foil, described
Interconnecting piece (212) is the hot pressing region on the transition plate (2).
6. single battery according to claim 5, which is characterized in that the welding foot and the tab ultrasonic welding or electricity
Welding resistance connects, the interconnecting piece (212) and the cover board (101) laser welding.
7. single battery according to claim 1, which is characterized in that the single battery (100) further includes insulated spacing collar
(5), which is covered on the end of the battery core group (1), and the tab passes through logical on the insulated spacing collar (5)
Slot (51), the transition plate (2) is between the cover board (101) and the insulated spacing collar (5).
8. a kind of battery modules, which is characterized in that the battery modules include any in multiple connection sheets and multiple claim 1-7
Single battery (100) described in, neighboring unit cell (100) are electrically connected by the connection sheet.
9. a kind of power battery, including backpack body and setting are in the intracorporal battery modules of the packet, which is characterized in that the battery modules
For battery modules according to any one of claims 8.
10. a kind of electric car, which is characterized in that the electric car includes power battery as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821038042.4U CN208385543U (en) | 2018-07-02 | 2018-07-02 | Single battery, battery modules, power battery and electric car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821038042.4U CN208385543U (en) | 2018-07-02 | 2018-07-02 | Single battery, battery modules, power battery and electric car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208385543U true CN208385543U (en) | 2019-01-15 |
Family
ID=64965757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821038042.4U Active CN208385543U (en) | 2018-07-02 | 2018-07-02 | Single battery, battery modules, power battery and electric car |
Country Status (1)
| Country | Link |
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| CN (1) | CN208385543U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111834578A (en) * | 2020-08-19 | 2020-10-27 | 江苏塔菲尔动力系统有限公司 | Array battery cell and assembly method thereof |
| CN112331994A (en) * | 2019-11-19 | 2021-02-05 | 宁德时代新能源科技股份有限公司 | Soft-package battery module, grouping method thereof, battery pack and equipment using soft-package battery module as power supply |
| CN112701386A (en) * | 2020-12-28 | 2021-04-23 | 合肥国轩高科动力能源有限公司 | Winding core assembling structure and assembling method |
| CN114614171A (en) * | 2022-04-12 | 2022-06-10 | 浙江极氪智能科技有限公司 | Battery assembly and method for connecting tab and cover plate |
| CN115020923A (en) * | 2022-04-22 | 2022-09-06 | 远景动力技术(江苏)有限公司 | Battery and method for manufacturing same |
| CN115702522A (en) * | 2020-06-23 | 2023-02-14 | 宁德新能源科技有限公司 | Battery, electronic device and method for assembling battery |
| WO2023031110A1 (en) * | 2021-08-30 | 2023-03-09 | Northvolt Ab | Secondary cell |
| WO2024182957A1 (en) * | 2023-03-03 | 2024-09-12 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, and electric apparatus |
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2018
- 2018-07-02 CN CN201821038042.4U patent/CN208385543U/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112331994A (en) * | 2019-11-19 | 2021-02-05 | 宁德时代新能源科技股份有限公司 | Soft-package battery module, grouping method thereof, battery pack and equipment using soft-package battery module as power supply |
| CN115702522A (en) * | 2020-06-23 | 2023-02-14 | 宁德新能源科技有限公司 | Battery, electronic device and method for assembling battery |
| CN115702522B (en) * | 2020-06-23 | 2024-06-04 | 宁德新能源科技有限公司 | Battery, electronic device and method for assembling battery |
| CN111834578A (en) * | 2020-08-19 | 2020-10-27 | 江苏塔菲尔动力系统有限公司 | Array battery cell and assembly method thereof |
| CN111834578B (en) * | 2020-08-19 | 2024-04-16 | 江苏正力新能电池技术有限公司 | Array battery cell and assembly method thereof |
| CN112701386A (en) * | 2020-12-28 | 2021-04-23 | 合肥国轩高科动力能源有限公司 | Winding core assembling structure and assembling method |
| WO2023031110A1 (en) * | 2021-08-30 | 2023-03-09 | Northvolt Ab | Secondary cell |
| WO2023031105A3 (en) * | 2021-08-30 | 2023-04-13 | Northvolt Ab | Secondary cell |
| US11888182B2 (en) | 2021-08-30 | 2024-01-30 | Northvolt Ab | Secondary cell |
| CN114614171A (en) * | 2022-04-12 | 2022-06-10 | 浙江极氪智能科技有限公司 | Battery assembly and method for connecting tab and cover plate |
| CN115020923A (en) * | 2022-04-22 | 2022-09-06 | 远景动力技术(江苏)有限公司 | Battery and method for manufacturing same |
| WO2024182957A1 (en) * | 2023-03-03 | 2024-09-12 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, and electric apparatus |
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