CN209169206U - Secondary cell - Google Patents
Secondary cell Download PDFInfo
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- CN209169206U CN209169206U CN201822014308.8U CN201822014308U CN209169206U CN 209169206 U CN209169206 U CN 209169206U CN 201822014308 U CN201822014308 U CN 201822014308U CN 209169206 U CN209169206 U CN 209169206U
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- electrode terminal
- connector
- protrusion
- secondary cell
- electrode
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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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Abstract
The utility model relates to a kind of secondary cells, comprising: shell has opening；Electrode assembly is contained in shell, and electrode assembly includes main part and the tab for being connected to main part；Cap assembly, including lamina tecti and electrode terminal, lamina tecti covering are open and connect with shell, and electrode terminal is set to lamina tecti；Conductive component, it is connected between electrode assembly and electrode terminal, conductive component includes switching piece and connector, switching piece includes entity plate interconnected and protrusion, entity plate is connect with tab, and protrusion extends and be resisted against electrode terminal towards the direction close to electrode terminal, and the surface of the separate electrode terminal of protrusion is equipped with recess portion, connector is contained in recess portion, and electrode terminal, protrusion and connector three link together.Secondary cell provided by the embodiment of the utility model, can satisfy the energy storage requirement of itself, while have higher security performance.
Description
Technical field
The utility model relates to energy storage device technical fields, more particularly to a kind of secondary cell.
Background technique
Secondary cell has the characteristics that high-energy density, is environmentally protective as energy development new trend.Secondary cell battery
It mainly include shell, electrode assembly, switching piece and cap assembly.Wherein, electrode assembly be by the first pole piece, the second pole piece and
Isolation film winds or stacks.When secondary cell assembles, first electrode assembly is connect with switching piece, then again by switching piece and
The electrode terminal of cap assembly connects, and electrode assembly is finally packed into shell and seals shell and cap assembly.To guarantee to turn
The electrode terminal of contact pin and cap assembly has enough area of passages, is closely connected frequently with the mode of welding.However, existing
There is the switching piece unreasonable structural design in technology, causes switching piece in welding process to be very easy to be damaged, such as by burn-through, shadow
Ring the bonding strength between switching piece and electrode terminal, so influence secondary cell using safe.
Therefore, a kind of new secondary cell is needed.
Utility model content
The utility model embodiment provides a kind of secondary cell, and secondary cell can satisfy the energy storage requirement of itself, simultaneously
With higher security performance.
On the one hand, a kind of secondary cell is proposed according to the utility model embodiment, comprising: shell has opening；Electrode
Component is contained in shell, and electrode assembly includes main part and the tab for being connected to main part；Cap assembly, including top cover
Plate and electrode terminal, lamina tecti covering are open and connect with shell, and electrode terminal is set to lamina tecti；Conductive component, connection
Between electrode assembly and electrode terminal, conductive component includes switching piece and connector, and switching piece includes ontology interconnected
Plate and protrusion, entity plate are connect with tab, and protrusion extends and be resisted against electrode terminal, protrusion towards the direction close to electrode terminal
The surface of separate electrode terminal be equipped with recess portion, connector is contained in recess portion, electrode terminal, protrusion and connector three connection
Together.
According to the one aspect of the utility model embodiment, protrusion has bottom plate and a side plate, side plate be connected to entity plate and
Between bottom plate, bottom plate and side plate surround recess portion；Bottom plate is between connector and electrode terminal.
According to the one aspect of the utility model embodiment, electrode terminal, bottom plate and connector three are connected by welding
It is connected together to form weld part, weld part through electrode terminal and bottom plate and extend in the connector.
According to the one aspect of the utility model embodiment, the outer surface of electrode terminal is equipped with groove, and weld part is revealed in
Groove.
According to the one aspect of the utility model embodiment, bottom towards electrode assembly of the weld part without departing from connector
Face.
According to the one aspect of the utility model embodiment, clamping protrusion is provided on side plate, clamping protrusion is towards close to recessed
The direction in portion is protruded, and connector is fixed in recess portion.
According to the one aspect of the utility model embodiment, connector has bottom surface towards electrode assembly, towards side plate
Side and the inclined surface that is connected between bottom surface and side, inclined surface and clamping male cooperation.
According to the one aspect of the utility model embodiment, the quantity for being clamped protrusion is one, is clamped protruding ring around connection
Part；Or, the quantity of clamping protrusion is two or more, two or more clamping protrusion is spaced apart from each other distribution along the circumferential direction of connector.
According to the one aspect of the utility model embodiment, it is directed toward the direction of connector along side plate, is clamped the section of protrusion
It is gradually reduced.
According to the one aspect of the utility model embodiment, electrode terminal, connector and bottom plate all have identical material
Matter, and the thickness of connector is greater than the thickness of bottom plate.
According to secondary cell provided by the embodiment of the utility model comprising shell, electrode assembly, cap assembly and lead
Electrical component, electrode assembly are set in shell, and cap assembly covers the opening of shell, and conductive component is connected to electrode assembly and electricity
Between extreme son, conductive component includes switching piece and connector, and switching piece includes entity plate and protrusion, entity plate and tab
Connection, protrusion extend and are resisted against electrode terminal towards the direction close to electrode terminal, and the surface of the separate electrode terminal of protrusion is set
There is recess portion, connector is contained in recess portion, and electrode terminal, protrusion and connector three link together, and passes through above-mentioned setting, energy
It is enough so that there are enough intensity and thickness in the part that conductive component is connect with electrode terminal, avoid conductive component with electrode terminal
It is damaged when connection by burn-through or other reasons, meets the reliability being electrically connected between conductive component and electrode terminal, so that
Between this have higher bonding strength, and then guarantee secondary cell using safe.
Detailed description of the invention
The feature, advantage and technical effect of the utility model exemplary embodiment described below with reference to the accompanying drawings.
Fig. 1 is the exploded view of the secondary cell of the utility model embodiment；
Fig. 2 is the cross-sectional view of the secondary cell of the utility model embodiment；
Fig. 3 is enlarged drawing at A in Fig. 2；
Fig. 4 is the exploded view of the conductive component of the utility model embodiment；
Fig. 5 is the cross-sectional view of the conductive component of the utility model embodiment；
Fig. 6 is enlarged drawing at B in Fig. 5.
Wherein:
100- secondary cell；
10- shell；11- opening；12- accommodating chamber；
20- electrode assembly；21- tab；22- main part；
30- cap assembly；31- lamina tecti；32- electrode terminal；33- groove；
40- conductive component；41- switching piece；411- entity plate；The protrusion 412-；412a- bottom plate；412b- side plate；412c- card
Connect protrusion；413- recess portion；42- connector；The bottom surface 421-；The side 422-；The inclined surface 423-；
50- weld part；D- spacing；X- short transverse.
In the accompanying drawings, identical component uses identical appended drawing reference.The attached drawing is not drawn according to the actual ratio.
Specific embodiment
The feature and exemplary embodiment of the various aspects of the utility model is described more fully below.It is retouched in detail in following
In stating, many details are proposed, in order to provide the comprehensive understanding to the utility model.But for those skilled in the art
It will be apparent that the utility model can be implemented in the case where not needing some details in these details for member.
Below the description of embodiment is used for the purpose of providing by showing the example of the utility model to the more preferable of the utility model
Understanding.In the the accompanying drawings and the following description, at least part of known features and technology are not shown, to avoid to this reality
Unnecessary obscure is caused with novel；Also, for clarity, may be exaggerated the size of part-structure.In addition, hereinafter being retouched
Feature, the structure or characteristic stated can be incorporated in any suitable manner in one or more embodiments.
The noun of locality of middle appearance described below is direction shown in figure, is not the secondary cell to the utility model
Specific structure be defined.In the description of the present invention, it should also be noted that, unless otherwise specific regulation and limit
Fixed, term " installation ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be directly connected, can also be indirectly connected.For the ordinary skill in the art, visual specific
Situation understands the concrete meaning of above-mentioned term in the present invention.
The utility model in order to better understand, below with reference to Fig. 1 to Fig. 6 according to the secondary electricity of the utility model embodiment
Pond is described in detail.
The exploded view of the secondary cell 100 of the utility model embodiment, Fig. 2 are shown also referring to Fig. 1 to Fig. 3, Fig. 1
Show the cross-sectional view of the secondary cell 100 of the utility model embodiment, Fig. 3 shows in Fig. 2 enlarged drawing at A.
The utility model embodiment provides a kind of secondary cell 100, and secondary cell 100 includes shell 10, electrode assembly
20, cap assembly 30 and conductive component 40.Shell 10 is formed the box-like of rectangle, shell 10 have accommodating chamber 12 and with
The opening 11 that accommodating chamber 12 is connected to.
Electrode assembly 20 is contained in the accommodating chamber 12 of shell 10, and electrode assembly 20 is including main part 22 and is connected to master
The tab 21 in body portion 22.Specifically, electrode assembly 20 can by the way that the first pole piece, the second pole piece and partition are stacked together or
It winds and is formed, wherein partition is the insulator between the first pole piece and the second pole piece.In the present embodiment, exemplary
Using the first pole piece as positive plate, the second pole piece is illustrated for negative electrode tab on ground.Similarly, in other examples, the first pole
Piece can also be negative electrode tab, and the second pole piece is positive plate.In addition, the active material of the first pole piece can be applied to the first pole piece
Coating area on, and the second pole piece active material can be applied on the coating area of the second pole piece.By the first pole piece, the second pole piece
And the main part 22 of partition winding or the part stacked as electrode assembly 20, and extended by the coating area of the first pole piece
Tab 21 of the part as electrode assembly 20, or the part extended by the coating area of the second pole piece is as electrode assembly 20
Tab 21.
Cap assembly 30 is used for seal casinghousing 10, and electrode assembly 20 is sealed in shell 10.Cap assembly 30 includes
Lamina tecti 31 and electrode terminal 32, the covering of lamina tecti 31 opening 11 are simultaneously connect with shell 10, and lamina tecti 31 is plate-like and has
Along the terminal hole of short transverse X perforation, electrode terminal 32 is set at the terminal hole of lamina tecti 31 and covers terminal hole.
Conductive component 40 is connected between electrode assembly 20 and electrode terminal 32, and conductive component 40 includes switching piece 41 and connects
Fitting 42, switching piece 41 include entity plate 411 interconnected and protrusion 412, and entity plate 411 is connect with tab 21, protrusion
412 extend and are resisted against electrode terminal 32, the surface of the separate electrode terminal 32 of protrusion 412 towards the direction close to electrode terminal 32
Equipped with recess portion 413, connector 42 is contained in recess portion 413, and electrode terminal 32, protrusion 412 and 42 three of connector are connected to one
It rises.Preferably, electrode terminal 32, protrusion 412 and 42 three of connector weld together.In order to guarantee that protrusion 412 can not
By processing and rigging error is influenced, optionally, the spacing d between entity plate 411 and lamina tecti 31 is greater than or equal to 0, guarantees convex
Portion 412 can reliably protrude into terminal hole and be in contact with electrode terminal 32.
Secondary cell 100 provided by the embodiment of the utility model as a result, since conductive component 40 includes switching piece 41 and is connected
Fitting 42, and the lower surface of the protrusion 412 of switching piece 41 is provided with recess portion 413, and connector 42 can be contained in recess portion 413
And be resisted against on protrusion 412 so that conductive component 40 is whole when connect with electrode terminal 32 (such as welding), will not by burn-through,
Guarantee the reliability being electrically connected between conductive component 40 and electrode terminal 32 and bonding strength each other, and then guarantees two
Primary cell 100 using safe.Simultaneously as switching piece 41 and connector 42 are individual two parts, can both pass through
Sheet metal forming technology shaping reduces difficulty of processing.Referring to Figure 4 together and Fig. 5, Fig. 4 show leading for the utility model embodiment
The exploded view of electrical component 40, Fig. 5 show the cross-sectional view of the conductive component 40 of the utility model embodiment.
In some alternative embodiments, the protrusion 412 of switching piece 41 has bottom plate 412a and side plate 412b, side plate 412b
It is connected between entity plate 411 and bottom plate 412a, side plate 412b extends towards the direction close to electrode terminal 32, bottom plate 412a and side
Plate 412b surrounds recess portion 413, and bottom plate 412a is between connector 42 and electrode terminal 32.Protrusion 412 using the above structure,
Guarantee outside reliability requirement when conductive component 40 and electrode terminal 32 are connected to each other, additionally it is possible to convenient for the processing of conductive component 40
Manufacture, while the whole occupied space of conductive component 40, the energy density of the secondary cell 100 of raising can be reduced.
Optionally, in the specific implementation, electrode terminal 32, protrusion 412 and 42 three of connector can specifically pass through weldering
The mode connect is joined together to form weld part 50,50 through electrode terminal 32 of weld part and bottom plate 412a and extends to described
In connector 42.By above-mentioned setting, it can guarantee there are enough area of passages between electrode terminal 32 and conductive component 40, together
When can guarantee bonding strength between electrode assembly 20 and conductive component 40 so that the performance of secondary cell 100 more optimizes.
In addition, secondary cell 100 can be used in the outside of cap assembly 30 in assembly to electrode terminal 32 by above-mentioned setting
The mode for carrying out laser welding realizes the connection with switching piece 40, and the metal fillings that can reduce or avoid welding to generate is splashed to
On electrode assembly 20, and then the pole piece of electrode assembly 20 is avoided to be punctured, guarantees that secondary cell 100 will not be by metal when being on active service
The influence of bits improves the safety of secondary cell 100.
When it is implemented, weld part 50 can be different structure type, as long as can guarantee electrode terminal 32, protrusion
Connection request between 412 and connector 42, in some optional examples, weld part 50 can be for around terminal hole
Axis formed ring structure, be specifically as follows the structure type of annulus, elliptical ring or polygon ring.
In order to avoid conductive component 40 is whole by burn-through, optionally, weld part 50 is without departing from connector 42 towards electrode
The bottom surface 421 of component 20 can either guarantee the bonding strength between 42 three of electrode terminal 32, protrusion 412 and connector, together
When, additionally it is possible to the metal fillings for avoiding welding from generating is splashed on electrode assembly 20, and then the pole piece of electrode assembly 20 is avoided to be pierced
It is broken, guarantee that secondary cell 100 will not be influenced when being on active service by metal fillings, improves the safety of secondary cell 100.
In some alternative embodiments, electrode terminal 32, connector 42 and bottom plate 412a all have identical material,
For example, can be aluminium material, meanwhile, the thickness of connector 42 is greater than the thickness of bottom plate 412a.Pass through above-mentioned setting, Neng Goubao
When being connected by the way of welding between card electrode terminal 32, connector 42 and bottom plate 412a three, due to using identical
Material has roughly the same fusing point, can guarantee mutual amalgamation when welding, preferably guarantee bonding strength.Meanwhile by
In using identical material, can prevent there are potential difference and by electrolytic corrosion.
Please continue to refer to Fig. 1 to Fig. 5, as an alternative embodiment, the outer surface of electrode terminal 32 is equipped with groove
33, weld part 50 is revealed in groove 33, by electrode terminal 32 be arranged groove 33 so that electrode terminal 32, protrusion 412 with
And 42 three of connector, when connecting by welding, laser beam can be more easier penetration electrode terminal 32, be conducive to subtract
Bonding power when small electrode terminal 32, protrusion 412 and 42 three of connector weld.
In the specific implementation, groove 33 is less than the thickness of electrode terminal 32 in the depth of short transverse X, and groove 33 is in height
Direction X can be prismatic trench structure.Certainly, in some other embodiments, depth of the groove 33 on short transverse X
Degree can also be equal to the depth of electrode terminal 32, at this point, groove 33 can be up big and down small ladder flute profile on short transverse X
Structure guarantees between electrode terminal 32,42 three of protrusion 412 and connector as long as can satisfy laser beam walks requirement
Bonding strength.The cross sectional shape on short transverse X of groove 33 can be round, ellipse or polygon.
Referring to Figure 6 together, Fig. 6 shows in Fig. 5 enlarged drawing at B.In some optional examples, connector 42 with it is convex
It can be connected using modes such as laser welding, interference fits between portion 412, it is of course also possible to use other connection type phases
It connects.Optionally, as shown in fig. 6, in some optional examples, the shape and the shape phase of recess portion 413 of connector 42
Match, and the thickness on short transverse X is less than the depth of recess portion 413, clamping protrusion is provided on the side plate 412b of protrusion 412
412c, clamping protrusion 412c protrude towards the direction close to recess portion 413, connector 42 are fixed in recess portion 413, setting is passed through
It is clamped protrusion 412c, can more preferably guarantee reliably to connect between connector 42 and switching piece 41.
Clamping protrusion 412c can be for connector 42 to be placed in after recess portion 413 is set to side plate 412b and and side plate again
The outer accessory that 412b is fixedly connected in order to save the whole cost of conductive component 40, while being more convenient for being clamped raised 412c certainly
Molding, optionally, clamping protrusion 412c can also be formed by way of squeezing side plate 412b.
Please continue to refer to Fig. 2 to Fig. 6, the quantity for being clamped protrusion 412c can be one, at this point, clamping protrusion 412c is whole
On the bottom plate 412a for being resisted against protrusion 412 for being arranged around connector 42, and then connector 42 being consolidated, certainly, clamping protrusion
The quantity and structure type of 412c is not limited to above-mentioned form, in some other examples, is clamped the quantity of protrusion 412c
It can be two or more, two or more clamping protrusion 412c can be arc and be spaced apart from each other distribution along the circumferential direction of connector 42,
The fixed function to connector 42 can equally be played.
Certainly, it in order to preferably be convenient for the molding of clamping protrusion 412c, and better meets and is carried out with clamping protrusion 412c
Cooperation, optionally, connector 42 have the bottom surface 421 towards electrode assembly 20, the side 422 towards side plate 412b and connection
Inclined surface 423 between bottom surface 421 and side 422, inclined surface 423 and clamping protrusion 412c cooperation.
Also, as an alternative embodiment, being directed toward the direction of connector 42 along side plate 412b, it is clamped protrusion 412c
Section be gradually reduced, that is, clamping protrusion 412c and connector 42 cooperate face be also be inclined surface 423, can preferably in fact
Now to the restriction effect of connector 42, while better meeting the forming requirements of clamping protrusion 412c itself.
To sum up, secondary cell 100 provided by the embodiment of the utility model, because it includes shell 10, electrode assembly 20, top cover
Component 30 and conductive component 40, and electrode assembly 20 is set in shell 10, cap assembly 30 covers opening for shell 10
Mouth 11, conductive component 40 is connected between electrode assembly 20 and electrode terminal 32, and conductive component 40 includes switching piece 41 and connects
Fitting 42, switching piece 41 include entity plate 411 and protrusion 412, meanwhile, entity plate 411 is connect with tab 21,412 court of protrusion
Direction close to electrode terminal 32 extends and is resisted against electrode terminal 32, and the surface of the separate electrode terminal 32 of protrusion 412 is equipped with
Recess portion 413, connector 42 are contained in recess portion 413, so that electrode terminal 32, protrusion 412 and 42 three of connector are connected to
When connecing, it can guarantee that conductive component 40 is damaged when connecting with electrode terminal 32 by burn-through or other reasons, it is reliable to guarantee
The reliability that is electrically connected between conductive component 40 and electrode terminal 32 and bonding strength each other, and then guarantee secondary electricity
Pond 100 uses safe, use easy to spread.
Although the present utility model has been described by reference to the preferred embodiments, but in the model for not departing from the utility model
In the case where enclosing, various improvement can be carried out to it and can replace component therein with equivalent.Especially, as long as not depositing
In structural conflict, items technical characteristic mentioned in the various embodiments be can be combined in any way.The utility model
It is not limited to specific embodiment disclosed herein, but is included all technical solutions falling within the scope of the claims.
Claims (10)
1. a kind of secondary cell characterized by comprising
Shell has opening；
Electrode assembly is contained in the shell, and the electrode assembly includes main part and the pole for being connected to the main part
Ear；
Cap assembly, including lamina tecti and electrode terminal, the lamina tecti covering is described to be open and connect with the shell, institute
It states electrode terminal and is set to the lamina tecti；
Conductive component is connected between the electrode assembly and the electrode terminal, and the conductive component includes switching piece and company
Fitting, the switching piece include entity plate interconnected and protrusion, and the entity plate is connect with the tab, the protrusion
Extend and be resisted against the electrode terminal towards the direction close to the electrode terminal, the separate electrode terminal of the protrusion
Surface is equipped with recess portion, and the connector is contained in the recess portion, the electrode terminal, the protrusion and the connector three
It links together.
2. secondary cell according to claim 1, which is characterized in that the protrusion has bottom plate and side plate, the side plate
It is connected between the entity plate and the bottom plate, the bottom plate and the side plate surround the recess portion, and the bottom plate is located at institute
It states between connector and the electrode terminal.
3. secondary cell according to claim 2, which is characterized in that the electrode terminal, the bottom plate and the company
For fitting three by being welded together to form weld part, the weld part penetrates the electrode terminal and the bottom plate simultaneously
It extends in the connector.
4. secondary cell according to claim 3, which is characterized in that the outer surface of the electrode terminal is equipped with groove, institute
It states weld part and is revealed in the groove.
5. secondary cell according to claim 3, which is characterized in that the weld part without departing from the connector towards
The bottom surface of the electrode assembly.
6. according to secondary cell described in claim 2 to 4 any one, which is characterized in that be provided with clamping on the side plate
Protrusion, the clamping protrusion are protruded towards the direction close to the recess portion, the connector are fixed in the recess portion.
7. secondary cell according to claim 6, which is characterized in that the connector has towards the electrode assembly
Bottom surface, the side towards the side plate and the inclined surface being connected between the bottom surface and the side, the inclined surface with
The clamping male cooperation.
8. secondary cell according to claim 6, which is characterized in that the quantity of the clamping protrusion is one, the card
Protruding ring is connect around the connector；Or, the quantity of the clamping protrusion is two or more, more than two clamping protrusions are along institute
The circumferential direction for stating connector is spaced apart from each other distribution.
9. secondary cell according to claim 6, which is characterized in that the direction of the connector is directed toward along the side plate,
The section of the clamping protrusion is gradually reduced.
10. according to secondary cell described in claim 2 to 5 any one, which is characterized in that the electrode terminal, the company
Fitting and the bottom plate all have identical material, and the thickness of the connector is greater than the thickness of the bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822014308.8U CN209169206U (en) | 2018-12-03 | 2018-12-03 | Secondary cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822014308.8U CN209169206U (en) | 2018-12-03 | 2018-12-03 | Secondary cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209169206U true CN209169206U (en) | 2019-07-26 |
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ID=67341672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822014308.8U Active CN209169206U (en) | 2018-12-03 | 2018-12-03 | Secondary cell |
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| CN (1) | CN209169206U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115986184A (en) * | 2022-06-08 | 2023-04-18 | 江苏正力新能电池技术有限公司 | Naked battery cell, cylindrical battery and assembling method of naked battery cell |
| WO2023092449A1 (en) * | 2021-11-26 | 2023-06-01 | 宁德时代新能源科技股份有限公司 | Battery cell, method and device for manufacturing battery cell, and power consuming device |
| WO2023115498A1 (en) * | 2021-12-24 | 2023-06-29 | 宁德时代新能源科技股份有限公司 | Battery, battery cell, battery module, electrical device, end cover assembly, and end cover assembly manufacturing method |
-
2018
- 2018-12-03 CN CN201822014308.8U patent/CN209169206U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023092449A1 (en) * | 2021-11-26 | 2023-06-01 | 宁德时代新能源科技股份有限公司 | Battery cell, method and device for manufacturing battery cell, and power consuming device |
| WO2023115498A1 (en) * | 2021-12-24 | 2023-06-29 | 宁德时代新能源科技股份有限公司 | Battery, battery cell, battery module, electrical device, end cover assembly, and end cover assembly manufacturing method |
| CN115986184A (en) * | 2022-06-08 | 2023-04-18 | 江苏正力新能电池技术有限公司 | Naked battery cell, cylindrical battery and assembling method of naked battery cell |
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