CN208862041U - Nut cap and battery - Google Patents
Nut cap and battery Download PDFInfo
- Publication number
- CN208862041U CN208862041U CN201821662498.8U CN201821662498U CN208862041U CN 208862041 U CN208862041 U CN 208862041U CN 201821662498 U CN201821662498 U CN 201821662498U CN 208862041 U CN208862041 U CN 208862041U
- Authority
- CN
- China
- Prior art keywords
- hole
- insulating
- nut cap
- pole
- face
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000003466 welding Methods 0.000 claims abstract description 34
- 238000007789 sealing Methods 0.000 claims description 16
- 238000009413 insulation Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model relates to a kind of nut cap and batteries, battery includes shell and battery core, shell includes shell and nut cap, shell and nut cap form the cavity for accommodating battery core, nut cap includes pole, cover board and collector plate, and cover board is equipped with the first through hole for running through the second through-hole of first surface and second surface and wearing for pole, and collector plate is connect with pole, collector plate is equipped with the welding groove for being right against the second through-hole, and the lateral surface of the bottom wall of welding groove is for connecting battery core.In assembled battery, directly battery core and collector plate can be welded, so as to omit traditional exchanging structure, simplify the structure and production technology of battery, improve the production efficiency of battery.Moreover, moreover it is possible to which the inner space for saving battery promotes the specific energy and specific power of battery.
Description
Technical field
The utility model relates to battery technology field more particularly to a kind of nut cap and batteries.
Background technique
For battery as important energy source, the various aspects in modern society's life all play great role.It is logical
Often, traditional battery structure mainly includes shell, exchanging structure and battery core, and shell includes shell and nut cap, and shell and nut cap connect
The cavity to be formed is connect for accommodating battery core, and the anode and cathode of battery core pass through exchanging structure respectively and connect with nut cap, thus real
The water conservancy diversion of existing battery.The junction and exchanging structure of battery core and exchanging structure and the junction of nut cap are all easily not connected firmly
Gu, the bad connections phenomenon such as fall off, and becomes larger to will lead to the internal resistance of cell, diversion effect is deteriorated.Moreover, switching process technique stream
Journey is various, and the consuming time is longer, and the production efficiency of battery can be made more low.Exchanging structure occupies battery compartment space simultaneously
It is larger, so that inside battery space utilization rate declines, battery specific energy and then decline.
Utility model content
The purpose of this utility model is to provide a kind of nut cap and batteries, and assembly technology is simple, inside battery space utilization
Rate is high, is able to ascend the production efficiency and specific energy of battery.
A kind of nut cap, comprising:
Pole；
Cover board, including the first surface and second surface being oppositely arranged, the cover board is logical equipped with first through hole and second
Hole, the first through hole and second through-hole run through the first surface and the second surface, and the pole is arranged in
The first through hole；And
Collector plate is connect with the pole, and the collector plate includes the first face and the second face being oppositely arranged, and described first
The direction of surface to the second surface is consistent with the direction in first face to second face, and first face is located at institute
It states between second surface and second face, first face is equipped with welding groove, and it is logical that the welding groove is right against described second
Hole, the lateral surface of the bottom wall of the welding groove is for connecting battery core.
It in one of the embodiments, further include insulating part, the insulating part is for the insulate cover board and the afflux
Plate.
The insulating part includes the first insulating surfaces and the second insulating surfaces being oppositely arranged in one of the embodiments, the
The direction of one insulating surfaces to second insulating surfaces is consistent with the direction in first face to second face, and described first is exhausted
Between second insulating surfaces and the second surface, second insulating surfaces are located at first insulating surfaces and institute in edge face
It states between the first face, the insulating part is equipped with third through-hole and fourth hole, and the third through-hole and the fourth hole are equal
Through first insulating surfaces and second insulating surfaces, the pole is arranged in the third through-hole, and the fourth hole is just
For second through-hole and the welding groove.
The insulating part further includes the first locating piece and the second locating piece in one of the embodiments, and described first is fixed
Position part is set to the edge of the fourth hole, and protrudes from first insulating surfaces, and first locating piece is arranged in described the
Two through-holes, second locating piece are set to the edge of the fourth hole, and protrude from second insulating surfaces, and described second is fixed
Position part is arranged in the welding groove.
The insulating part includes insulating body and frame in one of the embodiments, and the insulating body is located at described
Between cover board and the collector plate, the frame connect to form accommodating cavity with the insulating body, and the collector plate is located at described
In accommodating cavity；
The insulating body is equipped with third through-hole and fourth hole, and the pole is arranged in the third through-hole, described
Fourth hole is right against second through-hole and the welding groove.
It in one of the embodiments, further include sealing element, the sealing element is used to seal and the insulate pole and institute
State cover board.
The sealing element includes seal body and locating part in one of the embodiments, and the cover board is equipped with aperture,
The seal body is arranged in the aperture, and the seal body is equipped with fifth hole, and it is logical that the pole is arranged in the described 5th
The inner wall in hole, the aperture is equipped with limit hole, and the limit hole is connected to form the first through hole with the aperture, the limit
Position part is connect with the seal body, and is arranged in the limit hole.
The first surface is equipped with location hole in one of the embodiments,.
It in one of the embodiments, further include shaped element, the shaped element is sheathed on the pole, and with described first
Surface abuts.
A kind of battery, comprising:
Shell, interior to be equipped with cavity, the shell includes shell and above-mentioned any nut cap, the shell and the cover board
Connection forms the cavity；And
Battery core is located in the cavity, and connect with the lateral surface of the bottom wall of the welding groove.
The lateral surface of above-mentioned nut cap, the bottom wall of welding groove is connect with battery core, can be directly by battery core in assembled battery
It is welded with collector plate, so as to omit traditional exchanging structure, simplifies the structure and production technology of battery, improve the life of battery
Produce efficiency.Moreover, moreover it is possible to which the inner space for saving battery promotes the specific energy and specific power of battery.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Wherein:
Fig. 1 is the structural schematic diagram of the battery of an embodiment；
Fig. 2 is the structural schematic diagram of middle cover of battery cap shown in FIG. 1；
Fig. 3 is the cross-sectional view of nut cap shown in Fig. 2；
Fig. 4 is the explosive view of nut cap shown in Fig. 2；
Fig. 5 is the explosive view at another visual angle of nut cap shown in Fig. 2；
Fig. 6 is the structural schematic diagram of nut cap cover plate shown in Fig. 4；
Fig. 7 is the structural schematic diagram of insulating part in nut cap shown in Fig. 4；
Fig. 8 is the structural schematic diagram at another visual angle of insulating part shown in Fig. 7.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to FIG. 1, the battery 10 of an embodiment includes shell 20 and battery core (not shown), shell 20 includes shell 22
And nut cap 24, shell 22 connect to form cavity with nut cap 24, battery core is within the cavity, and is electrically connected with nut cap 24.In this implementation
In mode, battery 10 is circular batteries, it will be understood that in other embodiments, battery 10 can also be other kinds of electricity
Pond, such as rectangular cell etc..
As shown in Figures 2 to 5, nut cap 24 includes pole 100, cover board 200 and collector plate 300, wherein pole 100 passes through
Collector plate 300 is electrically connected with battery core, and cover board 200 is connect with shell 22.
Specifically, cover board 200 includes the first surface 210 and second surface 220 that are oppositely arranged, and cover board 200 is equipped with the
One through-hole 230 and the second through-hole 240, first through hole 230 and the second through-hole 240 run through first surface 210 and second surface
220, pole 100 is arranged in first through hole 230.
Collector plate 300 includes the first face 310 and the second face 320 being oppositely arranged, first surface 210 to second surface 220
Direction it is consistent with the direction in 310 to the second face 320 of the first face, and the first face 310 is located at second surface 220 and the second face 320
Between.First face 310 is equipped with welding groove 330, and welding groove 330 is right against the second through-hole 240, the bottom wall of welding groove 330 it is outer
Side 332 is for connecting battery core.In the present embodiment, the lateral surface 332 of the bottom wall of welding groove 330 protrudes from the second face 320,
And the lateral surface 332 is realized in a welding manner with the electrode end surface of battery core and is connect.It is understood that electrode mentioned here
End face can be the end face of positive electrode, be also possible to the end face of negative electrode.
Collector plate 300, which can collect the electric current generated on electrode, to be formed biggish electric current and passes to pole 100, in order to
Improve the convergence effect of electric current, in the present embodiment, there are three welding groove 330 is set, equidistantly distributed on the first face 310,
It is capable of increasing the bonding area of collector plate 300 Yu battery core in this way, helps to export biggish electric current.Correspondingly, the second through-hole 240
Three also are provided with, is corresponded with welding groove 330.Certainly, in other embodiments, the number of welding groove 330 can also be
One, two, four or more.
When assembling the battery of present embodiment, pole 100 is connect with collector plate 300, passes through laser welding or supersonic welding
The mode connect welds the electrode end surface of the lateral surface 332 of the bottom wall of welding groove 330 and battery core, be just able to achieve pole 100,
Water conservancy diversion between collector plate 300 and battery core three.Traditional exchanging structure is not only omitted in this way, simplify the structure of battery with
And production technology, the internal resistance of cell is also reduced, catchment effect is improved.In addition, design also saves the inside sky of battery in this way
Between, so that more electrolyte can be accommodated in cavity, so as to promote the specific energy and specific power of battery.
It is noted that in the present embodiment, collector plate 300 is attached by welding with pole 100,
Collector plate 300 selects copper material, aluminium material or aluminum alloy material, and the material of pole 100 is consistent with the material of collector plate 300 or phase
Closely, to improve welding effect.Further, collector plate 300 is equipped with connecting hole 340, and pole 100 is arranged in connecting hole 340, connects
The medial surface in hole 340 is connect in a welding manner with pole 100.It is appreciated that in other embodiments, collector plate 300 is also
It can be integrally formed with pole 100.
As shown in figure 3, in the present embodiment, nut cap 24 further includes insulating part 400, insulating part 400 is had by plastics etc.
The material of insulation function is made, for insulation cover plate 200 and pole 100 and insulation cover plate 200 and current collecting plates 300, Jin Ershi
Insulation between existing pole 100 and shell 22 and battery core and shell 22.
Specifically, Fig. 7 and Fig. 8 is please combined together, and insulating part 400 includes insulating body 410 and frame 420, insulating body
410 between cover board 200 and collector plate 300, and insulating body 410 is exhausted including the first insulating surfaces 412 and second being oppositely arranged
The direction in edge face 414, the first insulating surfaces to the second insulating surfaces 414 is consistent with the direction in 310 to the second face 320 of the first face, and the
For one insulating surfaces 412 between the second insulating surfaces 414 and second surface 220, the second insulating surfaces 414 are located at the first insulating surfaces 412
Between the first face 310.That is, the first insulating surfaces 412 are closer to cover board 200, the second insulating surfaces 414 are closer to collector plate 300.
Insulating body 410 is equipped with third through-hole 416 and fourth hole 418, and third through-hole 416 and fourth hole 418 are equal
Through the first insulating surfaces 412 and the second insulating surfaces 414, pole 100 is arranged in third through-hole 416, and fourth hole 418 is right against
Two through-holes 240 and welding groove 330.Similarly, fourth hole 418 is set with the second through-hole 240 and the one-to-one correspondence of welding groove 330 respectively
It sets, specific in present embodiment, the number of fourth hole 418 is also three.
Frame 420 connect to form accommodating cavity 430 with insulating body 410, and collector plate 300 is located in accommodating cavity 430, thus absolutely
Edge part 400 can also prevent collector plate 300 from contacting with shell 22, guarantee the insulation between collector plate 300 and shell 22.In general, electric
Core has the foil made of the conductive materials such as aluminium or copper close to one end of collector plate 300, and frame 420 can also play insulation foil
With the effect of shell 22.It is appreciated that in other embodiments, frame 420 also can be omitted, collector plate 300 and shell 22
Interval, or frame 420 is replaced using insulating tape, and the wrapped position of insulating tape does not do unique restriction.
Further, in the present embodiment, insulating part 400 further includes the first locating piece 440 and the second locating piece 450, and
Positioning piece 440 is set to the edge of fourth hole 418, and protrudes from the first insulating surfaces 412, and the first locating piece 440 is arranged in the
Two through-holes 240, so as to prevent insulating part 400 from rotating relative to cover board 200.Second locating piece 450 is set to fourth hole 418
Edge, and the second insulating surfaces 414 are protruded from, the second locating piece 450 is arranged in welding groove 330, so as to prevent 400 phase of insulating part
Collector plate 300 is rotated.
For the battery 10 of present embodiment, nut cap 24 can be set one, and two, but nut cap 24 also can be set
If when there are two, two nut caps 24 are separately positioned on the both ends of shell 22, and one of nut cap 24 is connect with the positive electrode of battery core,
Another nut cap 24 is connect with the negative electrode of battery core, moreover, at least one nut cap 24 need to include insulating part 400, is covered to prevent two
The pole 100 of cap 24 is connected with shell 22 and leads to the positive electrode of battery core and the negative electrode water conservancy diversion short circuit of battery core.
As shown in Fig. 3, Fig. 4 and Fig. 6, nut cap 24 further includes sealing element 500, and sealing element 500 is for sealing pole 100 and lid
Plate 200.Further, sealing element 500 by plastics etc. there is the material of insulation function to be made, moreover it is possible to play insulating polar pole 100 and lid
The effect of plate 200.
Specifically, sealing element 500 includes seal body 510 and locating part 520, and cover board 200 is equipped with aperture 232, sealing
Ontology 510 is arranged in aperture 232, and seal body 510 is equipped with fifth hole 512, and pole 100 is arranged in fifth hole 512, aperture
232 inner wall is equipped with limit hole 234, and limit hole 234 is connected to form first through hole 230 with aperture 232, locating part 520 with it is close
It seals ontology 510 to connect, and is arranged in limit hole 234.Sealing element 500 is filled between pole 100 and cover board 200 with Shooting Technique
Gap, locating part 520 can prevent cover board 200 relative to the rotation of sealing element 500.
In the present embodiment, locating part 520 is equipped with multiple, is intervally arranged in the circumferential direction of seal body 510.At other
In embodiment, locating part 520 can also be omitted, and seal body 510 is connect with 200 interference of cover board.
As shown in figure 3, nut cap 24 further includes shaped element 600, shaped element 600 is sheathed on pole 100, and and first surface
210 abut.Shaped element 600 is mainly used for fixed pole 100 and cover board 200, limits cover board 200 relative to pole 100 along pole
Movement in 100 axial directions.In the present embodiment, shaped element 600 and 500 split-type design of sealing element, it is to be understood that
In other embodiments, shaped element 600 can also be integrally formed with sealing element 500.
In the present embodiment, as shown in figure 4, first surface 210 is additionally provided with location hole 212, production nut cap 24 or
When assembled battery 10, location hole 212 is for detent fit with external equipment, to fix cover board 200, prevent cover board 200 or
It is that entire nut cap 24 deviates.Location hole 212 be equipped with it is multiple, be intervally arranged on first surface 210, it will be understood that location hole 212
Number can according to practical condition determine.Alternatively, in other embodiments, location hole 212 also can be omitted, pass through
The mode of clamping positions cover board 200 or nut cap 24.
Above disclosures are merely preferred embodiments of the utility model, the utility model cannot be limited with this certainly
Interest field, therefore equivalent variations made according to the claim of the utility model still fall within the scope of the utility model.
Claims (10)
1. a kind of nut cap characterized by comprising
Pole；
Cover board, including the first surface and second surface being oppositely arranged, the cover board is equipped with first through hole and the second through-hole, institute
It states first through hole and second through-hole runs through the first surface and the second surface, the pole is arranged in described
One through-hole；And
Collector plate is connect with the pole, and the collector plate includes the first face and the second face being oppositely arranged, the first surface
It is consistent with the direction in first face to second face to the direction of the second surface, and first face is positioned at described the
Between two surfaces and second face, first face is equipped with welding groove, and the welding groove is right against second through-hole, institute
The lateral surface of the bottom wall of welding groove is stated for connecting battery core.
2. nut cap according to claim 1, which is characterized in that further include insulating part, the insulating part is described for insulating
Cover board and the collector plate.
3. nut cap according to claim 2, which is characterized in that the insulating part include the first insulating surfaces being oppositely arranged and
Second insulating surfaces, the direction of the first insulating surfaces to second insulating surfaces and the direction one in first face to second face
It causes, and first insulating surfaces, between second insulating surfaces and the second surface, second insulating surfaces are located at institute
It states between the first insulating surfaces and first face, the insulating part is equipped with third through-hole and fourth hole, the third through-hole
And the fourth hole runs through first insulating surfaces and second insulating surfaces, it is logical that the pole is arranged in the third
Hole, the fourth hole are right against second through-hole and the welding groove.
4. nut cap according to claim 3, which is characterized in that the insulating part further includes the first locating piece and the second positioning
Part, first locating piece are set to the edge of the fourth hole, and protrude from first insulating surfaces, first locating piece
It is arranged in second through-hole, second locating piece is set to the edge of the fourth hole, and protrudes from second insulation
Face, second locating piece are arranged in the welding groove.
5. nut cap according to claim 2, which is characterized in that the insulating part includes insulating body and frame, it is described absolutely
Between the cover board and the collector plate, the frame connect to form accommodating cavity with the insulating body edge ontology, described
Collector plate is located in the accommodating cavity；
The insulating body is equipped with third through-hole and fourth hole, and the pole is arranged in the third through-hole, and the described 4th
Through-hole is right against second through-hole and the welding groove.
6. nut cap according to claim 1, which is characterized in that further include sealing element, the sealing element for seal and it is exhausted
Pole described in edge and the cover board.
7. nut cap according to claim 6, which is characterized in that the sealing element includes seal body and locating part, described
Cover board is equipped with aperture, and the seal body is arranged in the aperture, and the seal body is equipped with fifth hole, and the pole is worn
Set on the fifth hole, the inner wall of the aperture is equipped with limit hole, described in the limit hole is connected to the aperture and to be formed
First through hole, the locating part are connect with the seal body, and are arranged in the limit hole.
8. nut cap according to claim 1, which is characterized in that the first surface is equipped with location hole.
9. nut cap according to claim 1, which is characterized in that further include shaped element, the shaped element is sheathed on the pole
Column, and abutted with the first surface.
10. a kind of battery characterized by comprising
Shell, interior to be equipped with cavity, the shell includes shell and such as described in any item nut caps of claim 1-9, the shell
It connect to form the cavity with the cover board；And
Battery core is located in the cavity, and connect with the lateral surface of the bottom wall of the welding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821662498.8U CN208862041U (en) | 2018-10-12 | 2018-10-12 | Nut cap and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821662498.8U CN208862041U (en) | 2018-10-12 | 2018-10-12 | Nut cap and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208862041U true CN208862041U (en) | 2019-05-14 |
Family
ID=66420782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821662498.8U Expired - Fee Related CN208862041U (en) | 2018-10-12 | 2018-10-12 | Nut cap and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208862041U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110783503A (en) * | 2019-10-23 | 2020-02-11 | 江西赣锋电池科技有限公司 | Secondary battery top cap reaches secondary battery who contains it |
| CN114902475A (en) * | 2020-07-10 | 2022-08-12 | 三星Sdi株式会社 | Rechargeable battery |
| WO2022242666A1 (en) * | 2021-05-21 | 2022-11-24 | 湖北亿纬动力有限公司 | Pole and electrode current collecting disc assembly structure, and battery |
| WO2024000947A1 (en) * | 2022-06-28 | 2024-01-04 | 湖北亿纬动力有限公司 | Cap assembly, battery, battery module, battery pack, and vehicle |
-
2018
- 2018-10-12 CN CN201821662498.8U patent/CN208862041U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110783503A (en) * | 2019-10-23 | 2020-02-11 | 江西赣锋电池科技有限公司 | Secondary battery top cap reaches secondary battery who contains it |
| CN110783503B (en) * | 2019-10-23 | 2022-07-05 | 江西赣锋电池科技有限公司 | Secondary battery top cap reaches secondary battery who contains it |
| CN114902475A (en) * | 2020-07-10 | 2022-08-12 | 三星Sdi株式会社 | Rechargeable battery |
| WO2022242666A1 (en) * | 2021-05-21 | 2022-11-24 | 湖北亿纬动力有限公司 | Pole and electrode current collecting disc assembly structure, and battery |
| WO2024000947A1 (en) * | 2022-06-28 | 2024-01-04 | 湖北亿纬动力有限公司 | Cap assembly, battery, battery module, battery pack, and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190514 |