CN209675395U - Cap assembly and secondary cell - Google Patents
Cap assembly and secondary cell Download PDFInfo
- Publication number
- CN209675395U CN209675395U CN201920894153.3U CN201920894153U CN209675395U CN 209675395 U CN209675395 U CN 209675395U CN 201920894153 U CN201920894153 U CN 201920894153U CN 209675395 U CN209675395 U CN 209675395U
- Authority
- CN
- China
- Prior art keywords
- sealing
- hole
- hole section
- cap assembly
- section
- 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.)
- Active
Links
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
-
- 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
Landscapes
- Filling, Topping-Up Batteries (AREA)
Abstract
This application provides a kind of cap assembly and secondary cells, are related to battery technology field.The cap assembly includes lamina tecti, and lamina tecti offers liquid injection hole, and the liquid injection hole includes the first hole wall and the second hole wall；First sealing is fixed with first hole wall；Second sealing and second hole wall are interference fitted；Wherein, along height direction H, first sealing position is above second sealing and first sealing is fixedly connected with second sealing.The secondary cell includes: shell and cap assembly, and shell is used for accommodate electrod component, and has opening；Cap assembly covers the opening setting.To alleviate the technical issues of steel ball existing in the prior art can fall into inside battery, influence leakproofness.
Description
[technical field]
This application involves battery technology field more particularly to a kind of cap assemblies and secondary cell.
[background technique]
Battery cap plate is one of important component of battery, offers liquid injection hole thereon, which is used for will be electric
Solution liquid is injected into inside battery.After completing fluid injection process, needs to seal liquid injection hole, prevent the leakage of electrolyte.
In the prior art, sealing only has a seal interface, and sealing effect is bad, is not able to satisfy vehicle life cycle
Various applying working conditions.
[utility model content]
In view of this, the embodiment of the present application provides a kind of cap assembly and secondary cell, deposited in the prior art with alleviating
Sealing reliability difference technical problem.
Cap assembly provided by the present application includes:
Lamina tecti, offers liquid injection hole, and the liquid injection hole includes the first hole wall and the second hole wall；
First sealing is fixed with first hole wall；
Second sealing is interference fitted with second hole wall；
Wherein, along height direction H, first sealing position is above second sealing, and first sealing
Portion is fixedly connected with second sealing.
Further, the liquid injection hole is stepped hole, including the first hole section and the second hole section, and forms step therebetween
Face；
First hole wall is located at first hole section, and second hole wall is located at second hole section.
Further, along height direction H, first hole section is located at the top of second hole section；
The step surface is towards first hole section.
Further, the section in direction along height direction H and from lower to upper, first hole section is gradually increased；
The section in direction along height direction H and from lower to upper, first sealing is gradually increased.
Further, second hole section is cylindrical, and second sealing is spherical shape；
The diameter of second sealing is 1.1~1.3 times of second hole section aperture；And/or
Along height direction H, second sealing position is that second sealing is straight in the height in second hole section
The 1/4~1/2 of diameter.
Further, further includes:
Interconnecting piece is located in the first hole section, and along height direction H, the both ends of the interconnecting piece are sealed with described first respectively
Portion is fixedly connected with second sealing.
Further, first sealing includes lower surface, along height direction H, the lower surface and the step surface
Between be equipped with evacuation gap.
Further, second sealing is spherical in shape；
Along height direction H, the depth in the evacuation gap is greater than the height of the interconnecting piece, and the depth in the evacuation gap
Degree is less than the diameter of second sealing.
Further, whole first sealing positions is in first hole section.
Secondary cell provided by the present application, comprising:
Shell is used for accommodate electrod component, and has opening；The cap assembly covers the opening.
Technical solution provided by the present application can achieve it is following the utility model has the advantages that
Cap assembly provided by the present application includes: the first sealing and the second sealing, and the first sealing and second seal
Portion is two parts interconnected, and the combination of sealing and liquid injection hole and sealing can be decomposed to the first sealing and second close
Two interfaces in envelope portion give full play to the effect at the respective interface of the first sealing and the second sealing, improve sealing effect.
It should be understood that the above general description and the following detailed description are merely exemplary, this can not be limited
Application.
[Detailed description of the invention]
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for this field
For those of ordinary skill, without creative efforts, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structural schematic diagram of cap assembly provided by the embodiments of the present application；
Fig. 2 is the enlarged drawing in Fig. 1 at a；
Fig. 3 is the structural schematic diagram of battery case；
Fig. 4 is the enlarged drawing in Fig. 3 at b；
Fig. 5 is the structural schematic diagram of seal assembly provided by the embodiments of the present application.
Appended drawing reference:
1- shell；
2- lamina tecti；
21- seal assembly；
The first sealing of 211-；
The lower surface 211a-；
The second sealing of 212-；
213- interconnecting piece；
22- liquid injection hole；
The first hole section of 221-；
221a- step surface；
The first hole wall of 221b-；
The second hole section of 222-；
The second hole wall of 222b-；
23- pole；
24- avoids gap；
25- weld part.
[specific embodiment]
In order to better understand the technical solution of the application, the embodiment of the present application is retouched in detail with reference to the accompanying drawing
It states.
It will be appreciated that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Base
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
Its embodiment, shall fall in the protection scope of this application.
The term used in the embodiment of the present application is only to be not intended to be limiting merely for for the purpose of describing particular embodiments
The application.In the embodiment of the present application and the "an" of singular used in the attached claims, " described " and "the"
It is also intended to including most forms, unless the context clearly indicates other meaning.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation for describing affiliated partner, indicate
There may be three kinds of relationships, for example, A and/or B, can indicate: individualism A, exist simultaneously A and B, individualism B these three
Situation.In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".
It should be noted that the nouns of locality such as "upper", "lower" described in the embodiment of the present application, "left", "right" are with attached drawing
Shown in angle come what is be described, should not be construed as the restriction to the embodiment of the present application.In addition, within a context, it is also necessary to
Understand, when mentioning an element and being connected to another element "upper" or "lower", can not only be connected directly between another
Perhaps "lower" can also be indirectly coupled to another element "upper" or "lower" by intermediary element for one element "upper".
The embodiment of the present application provides a kind of cap assembly, which includes electrode assembly, cap assembly and shell 1,
Wherein, shell 1 can be hexahedron, can also be other shapes, and form accommodating chamber inside the shell 1, be used for accommodate electrod group
Part and electrolyte, shell 1 it is open at one end so that electrode assembly can be placed in the accommodating chamber of shell 1 by the opening.Wherein,
Shell 1 may include metal material, such as aluminum or aluminum alloy etc. may also comprise insulating materials, such as plastic cement etc..
Electrode assembly includes electrode unit and tab, and electrode unit includes anode pole piece, cathode sheet and isolation film,
In, isolation film is between adjacent anode pole piece and cathode sheet, for separating anode pole piece and cathode sheet.
Electrode assembly can pass through anode pole piece, cathode sheet and and isolation between anode pole piece and cathode sheet
Film stacks or winds together formation.
Wherein, anode pole piece includes anode collector (such as copper foil) and the anode activity coated in anode collector surface
Material layer (such as graphite, carbon or silicon), cathode sheet include cathode current collector (such as aluminium foil) and be coated in cathode collector body surface
The cathode active material layer (such as ternary material, LiFePO4 or cobalt acid lithium) in face.In the anode of electrode assembly, tab and anode
Pole piece is connected, and stretches out from electrode unit, and the tab can directly be cut by anode collector；In the yin of electrode assembly
Pole, tab are connected with cathode sheet, and stretch out from electrode unit, and the tab can directly be cut by cathode current collector and be formed.
Cap assembly covering opening setting, including lamina tecti 2 and pole 23, lamina tecti 2 are fixed on the opening of shell 1, from
And electrode assembly 1 and electrolyte are closed in the accommodating chamber of shell 1, pole 23 is set to lamina tecti 2, and including anode pole and
Cathode pole, is electrically connected between two poles 23 and corresponding tab by connecting component, and lamina tecti 2 is provided with venting.
As depicted in figs. 1 and 2, liquid injection hole 22 is offered on lamina tecti 2, electrolyte can be injected by liquid injection hole 22
The inside of battery.The lamina tecti 2 further includes seal assembly 21, and the seal assembly 21 and the sealing of liquid injection hole 22 cooperate, for sealing
Liquid injection hole 22.
As shown in figure 4, liquid injection hole includes the first hole wall 221b and the second hole wall 222b.First hole wall 221b and the second hole wall
222b can intersect, can also be parallel, can be with coplanar.
As shown in figure 5, seal assembly 21 includes: the first sealing 211 and the second sealing 212, the first sealing 211 is used
It is fixed in the first hole wall 221b with liquid injection hole 22；Second sealing 212 is for the second hole wall 222b interference with liquid injection hole 22
Cooperation；Wherein, along height direction H, the first sealing 211 is located at the top of the second sealing 212, and the first sealing 211 and the
Two sealings 212 are fixedly connected.
First sealing 211 and the second sealing 212 are two parts interconnected, and it is close sealing to be decomposed first
Two interfaces in envelope portion 211 and the second sealing 212 give full play to the effect at respective interface, improve sealing effect.
Since the first sealing 211 is used to fix with the first hole wall 221b of liquid injection hole 22, the first sealing 211 and second
Sealing 212 is sealed with liquid injection hole 22 simultaneously, so that the better tightness at liquid injection hole 22.Meanwhile first sealing 211 can be with
The movement for limiting the second sealing 212 prevents the second sealing 212 from falling into inside battery because being vibrated, and improving sealing can
By property.
Wherein, the first sealing 211 can be in cover shape, can also be in the form of a column, the second sealing 212 can be spherical in shape, can
To be in elliposoidal.
First hole wall 221b of the first sealing 211 and liquid injection hole 22 can be by being welded and fixed, due to the first sealing
211 weld with the first hole wall 221b of liquid injection hole 22, the first sealing 211 can not only be fixed together with liquid injection hole 22, but also
It can play the role of sealing.
When the second sealing 212 is spherical in shape, crackle, gas is not present in 212 seal interface of the second sealing of interference fit
Defect is run through in hole etc., and interfacial seal is good.The seal interface formed due to spherical second sealing 212 in a ring, Ke Yishi
Existing ring packing, sealing effect are good.
Meanwhile first sealing 211 and the second sealing 212 can be metal material, or plastic material may be used also
Using one of them as metal material, another is plastic material.
First sealing 211 and the second sealing 212 can be by being welded to connect, can also be by other means by first
Sealing 211 and the second sealing 212 are fixed.As shown in Fig. 2, the first sealing 211 and the second sealing 212 are connected by welding
It connects to form weld part 25.In addition, the first sealing 211 and the second sealing 212 can also be an integral structure.When the first sealing
When portion 211 and the second sealing 212 are an integral structure, and be plastic material when, seal assembly 21 can use injection molding.
As shown in Figure 3, Figure 4, liquid injection hole 22 be stepped hole, including the first hole section 221 and the second hole section 222, and the two it
Between formed step surface 221a.First hole wall 221b is located at the first hole section 221, and the second hole wall 222b is located at the second hole section 222.
The axis coaxle of the axis of first hole section 221 and the second hole section 222；Along height direction H, the first hole section 221 is located at
The top of second hole section 222.First sealing 211 and the sealing of the first hole section 221 cooperate, the second sealing 212 and the second hole section
Sealing, can be decomposed two interfaces of the first sealing 211 and the second sealing 212, so that liquid injection hole 22 by 222 sealing cooperations
The better tightness at place.
In a specific embodiment, the first hole wall 221b is located at the first hole section 221, the first sealing be located at the first hole
First hole wall 221b of section 221 is fixed.Second hole wall 222b is located at the second hole section 222, the second sealing be located at the second hole section
Sealing can be decomposed the interface that the first sealing 211 is contacted with the first hole wall 221b by 222 the second hole wall 222b interference fit
Sealing is decomposed two interfaces, improved at liquid injection hole 22 by the interface contacted with the second sealing 212 with the second hole wall 222b
Sealing performance.
Second sealing 212 and the second hole section 222 are interference fitted, can be by riveted by the second sealing 212 and second
Hole section 222 combines.There is no crackle, stomatas etc. to run through defect at riveted interface, and in a ring, leakproofness is good at interface.
In a specific embodiment, along height direction H, the first hole section 221 is located at the top of the second hole section 222, step
Face 221a is arranged towards the first hole section 221, and when can prevent assembly, the first sealing 211 causes to do to the second sealing 212
It disturbs or the second sealing 212 damages the first hole section 221.
As shown in Figure 2, Figure 4 shows, the section in direction along height direction H and from lower to upper, the first hole section 221 is gradually increased；
The section in direction along height direction H and from lower to upper, the first sealing 211 is gradually increased.That is the inner sidewall of the first hole section 221
Tapered, the lateral surface of the first sealing 211 is tapered, enters the second hole section 222 convenient for the second sealing 211, is conducive to welding
Preceding assembly prevents the second sealing 212 from damaging to the first hole section 221.
When the first hole section 221 and the second hole section 222 are cylinder, the aperture of the first hole section 221 is greater than the second hole section
222 aperture, the first sealing 211 and the first hole section 221 are fixed and seal cooperation, the second sealing 212 and the second hole section 222
Sealing, is decomposed two interfaces of the first sealing 211 and the second sealing 212, gives full play to respective interface by sealing cooperation
Effect so that the leakproofness at liquid injection hole 22 is higher.Meanwhile first sealing 211 can limit the fortune of the second sealing 212
It is dynamic, it prevents the second sealing 212 from falling into inside battery because being shaken, improves sealing reliability.
In order to guarantee good sealing effect, the second hole section 222 is cylindrical, and the second sealing 212 is spherical or spherical
A part, if the diameter of the second sealing 212 differs smaller with 222 aperture of the second hole section, the second sealing 212 it is straight
Diameter and the seal interface in 222 aperture of the second hole section are smaller, and sealing effect is unobvious, if the diameter of the second sealing 212 is than
Two hole sections, 222 aperture is much larger, then is unfavorable for cooperation or even the second sealing of the second sealing 212 and the second hole section 222
212 sealing when excessive compression cause elastic failure, influence sealing effect.
In a specific embodiment, the diameter of the second sealing 212 is 1.1~1.3 times of 222 aperture of the second hole section.
That is, the diameter of the second sealing 212 is 1.1 times, 1.15 times, 1.2 times, 1.25 times, 1.3 times in 222 aperture of the second hole section, to protect
Card has enough seal interfaces, prevents the second sealing excessive compression in sealing from causing elastic failure, influences sealing effect.
Along height direction H, it is 212 diameter of the second sealing that the second sealing 212, which is located at the height in the second hole section 222,
1/4~1/2.That is, the second sealing 212 be located at the height in the second hole section 222 can for 212 diameter of the second sealing 1/4,
3/8,1/2, make the second sealing 212 there are enough height to be located in the second hole section 222, forms seal interface, ensure that sealing
Reliability.As shown in Fig. 2, it is h3 that the second sealing 212, which is located at the height in the second hole section 222,212 diameter of the second sealing is
D1, i.e. h3 are the 1/4~1/2 of D1.
When the diameter of the second sealing 212 is 1.1 times of 222 aperture of the second hole section, if the aperture of the second sealing hole
Diameter for 2mm, the second sealing 212 is then 2.2mm.
It should be noted that the diameter of the second sealing 212 is that the second sealing 212 does not deform in the present embodiment
When maximum sphere diameter, i.e. the diameter of the second sealing 212 under natural conditions.
As shown in figure 5, seal assembly 21 further include: interconnecting piece 213, interconnecting piece 213 are located in the first hole section 221, and even
213 both ends of socket part are fixedly connected with the first sealing 211 and the second sealing 212 respectively.First sealing 211 can limit
The movement of two sealings 212 prevents spherical second sealing 212 from falling into inside battery because being shaken, improves sealed reliable
Property.Interconnecting piece 213, can also be by other means respectively with the first sealing 211 and the second sealing 212 by being welded to connect
It is fixedly connected.Interconnecting piece 213, the first sealing 211 and the second sealing 212 can also be integral structure, can pass through note
It is moulded into type.Due to the height of interconnecting piece 213, make that suitable evacuation gap can be formed between the first sealing 211 and liquid injection hole,
Conducive to welding fabrication.
As shown in Fig. 2, the first sealing 211 includes lower surface 211a, and along height direction H, lower surface 211a and step surface
Evacuation gap 24 is equipped between 221a.The presence for avoiding gap 24, does not interfere the fit dimension of the first sealing 211, is conducive to weldering
It is connected into type.Since the riveted effect of spherical second sealing 212 and liquid injection hole 22 is difficult to detect, gap 24 is avoided by setting,
Conducive to identifying whether spherical second sealing 212 crosses riveting during riveting enters liquid injection hole 22, spherical shape second can be effectively controlled
The sealing effect of sealing 212.
As shown in Fig. 2, the second sealing 212 is spherical in shape, along height direction H, the depth for avoiding gap is h2, interconnecting piece
It is highly h1, the diameter of the second sealing 212 is D1, and the depth in evacuation gap 24 is greater than the height of interconnecting piece 213, and between evacuation
The depth of gap 24 matches the first sealing 211 with the first hole section 221 less than the diameter of the second sealing 212, i.e. h1 < h2 < D1
While conjunction, it can guarantee that the second sealing 212 and the second hole section 222 are in best magnitude of interference, sealing effect is good, improves sealing group
The sealing performance of part 21.
As shown in Fig. 2, the diameter of the second sealing 212 is D1, the aperture of the second hole section 222 is D2, the second sealing 212
Diameter be greater than the second hole section 222 aperture, that is, D1 be greater than D2, with guarantee the second sealing 212 liquid injection hole 22 is played well
Sealing effect.
In a specific embodiment, the first sealing 211 is located in the first hole section 221, convenient for the first sealing 211 with
First hole section, 221 firm welding, keeps the top surface of lamina tecti 2 more smooth.
The above is only the preferred embodiments of the application, not to limit the application, it is all in spirit herein and
Within principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the application protection.
Claims (10)
1. a kind of cap assembly characterized by comprising
Lamina tecti, offers liquid injection hole, and the liquid injection hole includes the first hole wall and the second hole wall；
First sealing is fixed with first hole wall；
Second sealing is interference fitted with second hole wall；
Wherein, along short transverse (H), first sealing position is above second sealing, and first sealing
It is fixedly connected with second sealing.
2. cap assembly according to claim 1, which is characterized in that
The liquid injection hole is stepped hole, including the first hole section and the second hole section, and forms step surface therebetween；
First hole wall is located at first hole section, and second hole wall is located at second hole section.
3. cap assembly according to claim 2, which is characterized in that
Along short transverse (H), first hole section is located at the top of second hole section；
The step surface is towards first hole section.
4. cap assembly according to claim 2, which is characterized in that
Direction along short transverse (H) and from lower to upper, the section of first hole section are gradually increased；
Direction along short transverse (H) and from lower to upper, the section of first sealing are gradually increased.
5. cap assembly according to claim 2, which is characterized in that
Second hole section is cylindrical, and second sealing is spherical shape；
The diameter of second sealing is 1.1~1.3 times of second hole section aperture；And/or
Along short transverse (H), second sealing position is the second sealing diameter in the height in second hole section
1/4~1/2.
6. the cap assembly according to any one of claim 2~5, which is characterized in that further include:
Interconnecting piece, be located at the first hole section in, along short transverse (H), the both ends of the interconnecting piece respectively with first sealing
It is fixedly connected with second sealing.
7. cap assembly according to claim 6, which is characterized in that
First sealing includes lower surface, and along short transverse (H), evacuation is equipped between the lower surface and the step surface
Gap.
8. cap assembly according to claim 7, which is characterized in that
Second sealing is spherical in shape；
Along short transverse (H), the depth in the evacuation gap is greater than the height of the interconnecting piece, and the depth in the evacuation gap
Less than the diameter of second sealing.
9. the cap assembly according to any one of claim 2~5, which is characterized in that
Whole first sealing positions are in first hole section.
10. a kind of secondary cell characterized by comprising
Shell is used for accommodate electrod component, and has opening；With
Cap assembly according to any one of claims 1 to 9 covers the opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920894153.3U CN209675395U (en) | 2019-06-14 | 2019-06-14 | Cap assembly and secondary cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920894153.3U CN209675395U (en) | 2019-06-14 | 2019-06-14 | Cap assembly and secondary cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209675395U true CN209675395U (en) | 2019-11-22 |
Family
ID=68575797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920894153.3U Active CN209675395U (en) | 2019-06-14 | 2019-06-14 | Cap assembly and secondary cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209675395U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113412553A (en) * | 2019-09-11 | 2021-09-17 | 宁德时代新能源科技股份有限公司 | Top cap subassembly, secondary cell and electric device |
| WO2024021313A1 (en) * | 2022-07-28 | 2024-02-01 | 湖北亿纬动力有限公司 | Sealing assembly and battery |
| CN118062396A (en) * | 2024-04-17 | 2024-05-24 | 内蒙古医科大学附属医院(内蒙古自治区心血管研究所) | Mesenchymal stem cell preservation solution strorage device |
-
2019
- 2019-06-14 CN CN201920894153.3U patent/CN209675395U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113412553A (en) * | 2019-09-11 | 2021-09-17 | 宁德时代新能源科技股份有限公司 | Top cap subassembly, secondary cell and electric device |
| WO2024021313A1 (en) * | 2022-07-28 | 2024-02-01 | 湖北亿纬动力有限公司 | Sealing assembly and battery |
| CN118062396A (en) * | 2024-04-17 | 2024-05-24 | 内蒙古医科大学附属医院(内蒙古自治区心血管研究所) | Mesenchymal stem cell preservation solution strorage device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209675395U (en) | Cap assembly and secondary cell | |
| CN206742372U (en) | Secondary cell | |
| JP2006324244A (en) | Secondary battery | |
| CN108461665A (en) | Secondary cell head cover and its secondary cell | |
| CN208622794U (en) | Secondary cell and its cap assembly | |
| US20240154176A1 (en) | Battery and assembling method thereof | |
| CN216389662U (en) | Cylindrical secondary battery and battery module | |
| US10164306B2 (en) | Battery cell having inward extending cup edge and method of manufacture | |
| KR101285940B1 (en) | Secondary battery | |
| JPH10241651A (en) | Rectangular non-aqueous electrolytic solution battery and manufacture of opening-sealing plate of the same | |
| CN209912903U (en) | Cylindrical lithium ion battery cap capable of automatically exhausting | |
| JP4128694B2 (en) | Secondary battery cap assembly and manufacturing method thereof | |
| CN209526124U (en) | Power battery top cover and power battery | |
| CN208298879U (en) | Secondary cell top cover and its secondary cell | |
| CN209447920U (en) | Secondary cell | |
| CN209374499U (en) | Cap assembly and secondary cell | |
| CN209104289U (en) | Secondary cell | |
| CN208580774U (en) | Secondary cell top cover | |
| CN209401665U (en) | Secondary cell and its cap assembly | |
| KR100553739B1 (en) | Sealed battery | |
| JP3131145U (en) | Button-type alkaline battery | |
| CN219419237U (en) | Top cap subassembly and secondary cell | |
| CN220341435U (en) | Battery shell and battery | |
| CN219203441U (en) | Cylindrical battery and electronic equipment | |
| KR100325861B1 (en) | Sealed battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |