CN208284579U - Aluminum-shell battery - Google Patents
Aluminum-shell battery Download PDFInfo
- Publication number
- CN208284579U CN208284579U CN201820574671.2U CN201820574671U CN208284579U CN 208284579 U CN208284579 U CN 208284579U CN 201820574671 U CN201820574671 U CN 201820574671U CN 208284579 U CN208284579 U CN 208284579U
- Authority
- CN
- China
- Prior art keywords
- aluminum
- battery case
- steel bushing
- shell
- annular groove
- 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
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 39
- 239000010959 steel Substances 0.000 claims abstract description 39
- 238000009413 insulation Methods 0.000 claims abstract description 21
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 10
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 5
- 239000000956 alloy Substances 0.000 claims abstract description 5
- 238000012545 processing Methods 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 239000004677 Nylon Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims description 3
- 210000002421 cell wall Anatomy 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 229920002492 poly(sulfone) Polymers 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 9
- 239000004411 aluminium Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 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
- Sealing Battery Cases Or Jackets (AREA)
Abstract
This application discloses a kind of aluminum-shell batteries, comprising: the battery case of the aluminum or aluminum alloy material of top opening is set to nut cap and the flexible insulation ring of battery case top open-mouth；The flexible insulation ring is folded between the battery case and the nut cap；The steel bushing for radially tightening the battery case, the flexible insulation ring and the nut cap is arranged in the periphery of the battery case open end.This aluminum-shell battery of the application has higher sealing-strength and better sealing leak.
Description
Technical field
This application involves field of batteries, especially a kind of aluminum-shell battery.
Background technique
With the high speed development in the fields such as new-energy automobile, energy storage, the specific energy of lithium ion battery is stepped up.Outside battery
Shell has been widespread practice using the lower aluminum alloy material of density, is by swashing no matter rectangular cell or cylindrical battery
The method of the welding such as flush weld realizes the sealing of shell and upper cover.For cylindrical battery, although the method for laser welding seals
Effect is good, but there is also production efficiencys problem low, at high cost, in addition, welded seal mode can be exhausted between shell and nut cap
Edge structure is married again on capping structure, and which limits the uses for having multiple protection functions safety valve, and can only use single
Explosion-proof valve.
For the deficiency of solder up, field of batteries technical staff has developed the mechanical enclosuring structure of cylindrical battery,
It is deformed and applying mechanical force to battery case, so that battery cap (end cap) is enclosed in battery case opening
End, and between nut cap and battery case sandwiched nylon ring to guarantee the leakproofness of sealing part.However, being aluminium for battery case
Or the aluminum-shell battery of aluminum alloy material, the persistence of battery case mechanically deform is very poor, in use the change of sealing part
Shape is easy to restore, and so as to cause sealing part leakproofness variation, or even the problem of end cap falls off occurs.
Summary of the invention
The purpose of the application, is: in view of the above-mentioned problems, this project proposes the aluminium that a kind of sealing-strength is high, sealing leak is good
Housing battery.
The technical solution of the application is:
A kind of aluminum-shell battery, comprising:
The battery case of the aluminum or aluminum alloy material of top opening, and
It is set to nut cap and the flexible insulation ring of battery case top open-mouth；
The flexible insulation ring is folded between the battery case and the nut cap；
One is arranged with by the battery case, the flexible insulation ring and institute in the periphery of the battery case open end
State the steel bushing that nut cap is radially tightened.
The application further includes following preferred embodiment based on the above technical solution:
By the radial compression deformation to the steel bushing, and the steel bushing fastening is made to be set in the battery case open end
Periphery.
By the radial compression deformation to the steel bushing, and the steel bushing outer wall is made to be formed with what a circle was radially-inwardly recessed
Annular groove.
The second annular groove that a circle is radially-inwardly recessed, the steel are formed on the outer wall of battery case top open-mouth
The ring wall of set radially invagination and recline arrangement with the cell wall of second annular groove, thus in the periphery of the part of invaginating of the steel bushing
Form the annular groove.
Second annular groove is formed and making slot rolling processing to the battery case.
The annular groove is formed and making slot rolling processing to the steel bushing.
Axial one end of the steel bushing is formed with radially inward annular flange, and the annular flange is axially against described
The end of battery case.
The flexible insulation ring is rubber, nylon, polysulfones material.
The radial section of the annular groove is V-shaped, W type, U-shaped or circular arc type.
The aluminum-shell battery is cylindrical lithium battery or capacitor.
The advantages of the application, is:
The application the periphery of aluminum battery case top opening be arranged an annular and by aluminum shell, flexible insulation
The high-intensitive steel bushing that ring and nut cap three radially tighten, so improves battery seal end by the higher steel material of intensity
The pressure of mechanical seal guarantees the permanence of sealing-strength at battery seal.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to required use in embodiment description
Attached drawing be briefly described, the drawings in the following description are only some examples of the present application, skill common for this field
For art personnel, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of this tradition machinery seal type aluminum-shell battery；
Fig. 2 is the structural schematic diagram of aluminum-shell battery in the embodiment of the present application；
Wherein: 1- battery case, the second annular groove of 101-, 2- nut cap, 3- flexible insulation ring, 4- steel bushing, 401- annular groove, 402-
Annular flange, 5- core.
Specific embodiment
Above scheme is described further below in conjunction with specific embodiment.It should be understood that these embodiments are for illustrating
The application and be not limited to limitation scope of the present application.Implementation condition used in the examples can be done according to the condition of specific producer
Further adjustment, the implementation condition being not specified is usually the condition in routine experiment.
Fig. 2 shows a specific embodiment of this aluminum-shell battery of the application, the aluminum-shell battery be cylindrical lithium from
Sub- battery.Certainly, which is also possible to capacitor (the super electricity for being used to store and discharge electric energy of cylindrical structure
Hold).Identical with the cylindrical battery of conventionally employed mechanical sealing to be: the battery also includes aluminium material (or the aluminium conjunction of top opening
Gold) battery case 1, the core 5 being contained in the battery case is set to 2 He of nut cap of the battery case top open-mouth
Flexible insulation ring 3.Flexible insulation ring 3 is folded between battery case 1 and nut cap 2.Flexible insulation ring 3 be nylon ring, certainly its
Other materials, such as rubber or polysulfones material etc. can also be used.
When production, above-mentioned flexible insulation ring 3 and nut cap 2 are sealed in the top of battery case 1 by mechanical sealing process
Open-mouth.
The key improvements of the present embodiment are, are tightly arranged with a steel bushing 4 in the periphery of 2 open end of battery case,
The steel bushing 4 is tightly encircled in the open-mouth section periphery of battery case 2, so that battery case 2, flexible insulation ring 3 and nut cap 2 is radial
It is cinched together.
Specifically, we and to change the fastening of steel bushing 4 and are set in electricity by the deformation of radial compression to above-mentioned steel bushing 4
2 open end of pond shell periphery.After steel bushing 4 is radially pressed and radial necking deformation occurs, battery will be inwardly squeezed
Shell 2, flexible insulation ring 3 and nut cap 2, to further enhance the binding force of battery case 2, flexible insulation ring 3 and nut cap 2.
And steel bushing 4 has the structural strength more much higher than aluminium, and with very strong deformation stability, after long-time service, steel bushing 4 is not yet
Reversal deformation can occur, to guarantee the permanence of sealing-strength at battery seal.
In the present embodiment, it is formed with what a circle was radially-inwardly recessed on the outer wall of above-mentioned 1 top open-mouth of battery case
Second annular groove 101, it is clear that the radially inner side of the second annular groove is formed with the inward flange of an annular, and it is flexible for convenience for being designed in this way
(inward flange has the axial direction to flexible insulation ring 3 and nut cap 2 to the mechanical encapsulation of dead ring 3 and nut cap 2 in battery case open end
Position-limiting action), this is the Normal practice of existing machinery sealing.
And the present embodiment carries out radial extrusion deformation to steel bushing 4, and make steel bushing 4 ring wall radially invagination and with it is above-mentioned
The cell wall of second annular groove reclines arrangement, so that a ring slot 401 is formed in the periphery of the invagination part of steel bushing 4, the annular groove 401
Position is just corresponding with above-mentioned second annular groove.
Specifically, above-mentioned second annular groove 101 is to be formed and making slot rolling processing to battery case 1, and annular groove 401 is
It is formed and making slot rolling processing to steel bushing 4.Obviously, inevitable while making slot rolling processing to steel bushing 4 and form annular groove 401
Radial pressure can be applied to steel bushing 4, steel bushing 4 has occurred radial deformation and forms annular groove 401.
In addition, the upper axial end of above-mentioned steel bushing 4 is formed with radially inward annular flange 402, the annular flange in Fig. 1
402 axially against in the end of battery case 1.The attachment force that steel bushing 4 Yu battery case 1 so can be improved prevents steel bushing 2 axial
It loosens, while improving the axial pressing force to nut cap 2, prevent nut cap axial play.
In the present embodiment, the radial section of above-mentioned annular groove 401 is V-shaped, naturally it is also possible to be other arbitrary shapes, such as W
Type, U-shaped or circular arc type.
Above-described embodiment is only the technical concepts and features for illustrating the application, and its object is to allow people that can understand this Shen
Content please is simultaneously implemented accordingly, and the protection scope of the application can not be limited with this.It is all according to the application main technical schemes
The equivalent transformation or modification that Spirit Essence is done should all be covered within the scope of protection of this application.
Claims (10)
1. a kind of aluminum-shell battery, comprising:
The battery case (1) of the aluminum or aluminum alloy material of top opening, and
It is set to nut cap (2) and the flexible insulation ring (3) of battery case top open-mouth；
The flexible insulation ring (3) is folded between the battery case (1) and the nut cap (2)；
It is characterized in that, being arranged with one for the battery case (1), described in the periphery of the battery case (1) open end
The steel bushing (4) that flexible insulation ring (3) and the nut cap (2) are radially tightened.
2. aluminum-shell battery according to claim 1, which is characterized in that it is deformed by the radial compression to the steel bushing (4),
And the steel bushing (4) is made to fasten the periphery for being set in the battery case (1) open end.
3. aluminum-shell battery according to claim 2, which is characterized in that it is deformed by the radial compression to the steel bushing (4),
And the steel bushing (4) outer wall is made to be formed with the annular groove (401) that a circle is radially-inwardly recessed.
4. aluminum-shell battery according to claim 3, which is characterized in that the outer wall of battery case (1) top open-mouth
On be formed with the second annular groove (101) that a circle is radially-inwardly recessed, the ring wall of the steel bushing (4) radially invagination and with described second
The cell wall of annular groove reclines arrangement, to form the annular groove (401) in the periphery of the invagination part of the steel bushing (4).
5. aluminum-shell battery according to claim 4, which is characterized in that second annular groove (101) is by the electricity
Pond shell (1) make slot rolling processing and formed.
6. aluminum-shell battery according to claim 4, which is characterized in that the annular groove (401) is by the steel bushing (4)
Make slot rolling processing and formed.
7. aluminum-shell battery according to claim 1, which is characterized in that axial one end of the steel bushing (4) is formed with radial direction
Inside annular flange (402), the annular flange (402) is axially against the end in the battery case (1).
8. aluminum-shell battery according to claim 1, which is characterized in that the flexible insulation ring (3) be rubber, nylon,
Polysulfones material.
9. aluminum-shell battery according to claim 3, which is characterized in that the radial section of the annular groove (401) is V-shaped, W
Type, U-shaped or circular arc type.
10. aluminum-shell battery according to claim 1, which is characterized in that the aluminum-shell battery be cylindrical lithium battery or
Capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820574671.2U CN208284579U (en) | 2018-04-20 | 2018-04-20 | Aluminum-shell battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820574671.2U CN208284579U (en) | 2018-04-20 | 2018-04-20 | Aluminum-shell battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208284579U true CN208284579U (en) | 2018-12-25 |
Family
ID=64751840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820574671.2U Active CN208284579U (en) | 2018-04-20 | 2018-04-20 | Aluminum-shell battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208284579U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021217966A1 (en) * | 2020-04-30 | 2021-11-04 | 宁德时代新能源科技股份有限公司 | Electrode assembly, secondary battery, battery pack, and apparatus |
| US11264683B2 (en) | 2020-04-30 | 2022-03-01 | Contemporary Amperex Technology Co., Limited | Electrode assembly, secondary battery, battery pack and device |
-
2018
- 2018-04-20 CN CN201820574671.2U patent/CN208284579U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021217966A1 (en) * | 2020-04-30 | 2021-11-04 | 宁德时代新能源科技股份有限公司 | Electrode assembly, secondary battery, battery pack, and apparatus |
| KR20210134935A (en) * | 2020-04-30 | 2021-11-11 | 컨템포러리 엠퍼렉스 테크놀로지 씨오., 리미티드 | Electrode assemblies, secondary batteries, battery packs and devices |
| US11264683B2 (en) | 2020-04-30 | 2022-03-01 | Contemporary Amperex Technology Co., Limited | Electrode assembly, secondary battery, battery pack and device |
| JP2022535314A (en) * | 2020-04-30 | 2022-08-08 | 寧徳時代新能源科技股▲分▼有限公司 | Electrode assembly, secondary battery, battery pack and device |
| KR102600439B1 (en) * | 2020-04-30 | 2023-11-09 | 컨템포러리 엠퍼렉스 테크놀로지 씨오., 리미티드 | Electrode assemblies, secondary batteries, battery packs and devices |
| JP7383034B2 (en) | 2020-04-30 | 2023-11-17 | 寧徳時代新能源科技股▲分▼有限公司 | Electrode assemblies, secondary batteries, battery packs and devices |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20200327 Granted publication date: 20181225 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20230309 Granted publication date: 20181225 |
|
| PD01 | Discharge of preservation of patent | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230802 Address after: Room J2243, No. 6, Lane 129, Huajiang Road, Jiading District, Shanghai, 201800 Patentee after: Shanghai Qike Network Technology Co.,Ltd. Address before: No. 39 Anzhi Street, Industrial Park, Suzhou City, Jiangsu Province, 215026 Patentee before: ANKAO (SUZHOU) ENERGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |