CN2752965Y - Totally-sealing shell for lithium ion battery - Google Patents
Totally-sealing shell for lithium ion battery Download PDFInfo
- Publication number
- CN2752965Y CN2752965Y CN200420056416.7U CN200420056416U CN2752965Y CN 2752965 Y CN2752965 Y CN 2752965Y CN 200420056416 U CN200420056416 U CN 200420056416U CN 2752965 Y CN2752965 Y CN 2752965Y
- Authority
- CN
- China
- Prior art keywords
- battery
- lithium ion
- ion battery
- charge
- hermetically sealed
- 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
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Classifications
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- Y02E60/12—
Landscapes
- Secondary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model relates to a full sealing casing for a lithium ion battery. A sealant and a charge sealing piece are arranged on a charge hole after charge is carried out, a battery shell is an aluminium alloy shell, an upper cover of the battery, a lower cover of the battery and the battery shell are welded integrally, and an upper opening of the charge hole and the charge sealing piece are welded integrally. Because the charge hole of the battery is designed on a terminal post of the battery, and the battery sealing adopts the sealant and the charge sealing seal piece, welding is not needed. The utility model assures that the integral leakage rate of the battery is smaller than 10<-8 >pam< 3 >/s, and satisfies a space electric source with high sealability requirement.
Description
Technical field
The utility model belongs to a kind of lithium ion battery hermetically-sealed construction technical field, particularly relates to the hermetically sealed housing of a kind of lithium ion battery.
Background technology
At present, the liquid injection hole of high-energy-density lithium ion battery is arranged on the battery container, and battery container to seal generally be that stainless steel case is carried out hermetically sealed welding, after this shell structure assemble, cell integrated leak rate is greater than 10
-8Pam
3/ S is difficult to satisfy the requirement of space with the high-energy-density lithium ion battery.
Practical fresh content
The utility model is the solution problems of the prior art, and after assemble was provided, battery liquid-filling sealed leak rate less than 10
-11Pam
3The hermetically sealed housing of a kind of lithium ion battery of/s.
The utility model for solving the technical scheme that technical problem adopted that exists in the known technology is:
The hermetically sealed housing of lithium ion battery comprises battery case, battery electrode column, cell cover and battery lower cover, and described battery electrode column is tightly connected by compressive seal and cell cover and is one, and be characterized in: described battery electrode column center is provided with liquid injection hole.
The utility model can also adopt following technical measures to realize:
The hermetically sealed housing of lithium ion battery is characterized in: liquid injection hole is provided with fluid sealant and fluid injection sealed piece after the described fluid injection.
The hermetically sealed housing of lithium ion battery is characterized in: described battery case is an Al alloy shell.
The hermetically sealed housing of lithium ion battery is characterized in: described cell cover and described battery lower cover and described battery case are welded as a whole.
The hermetically sealed housing of lithium ion battery is characterized in: the fluid injection sealed piece suitable for reading and described of described liquid injection hole is welded as a whole.
Advantage and the good effect that the utlity model has are: since with the design of the liquid injection hole of battery on battery electrode column, and battery seal adopts fluid sealant and fluid injection to seal seal, do not need welding, guaranteed that cell integrated leak rate is less than 10
-8Pam
3/ S.
Description of drawings
Fig. 1 is that the lithium ion battery of the utility model embodiment is with hermetically sealed shell structure schematic diagram.
Label among the figure is respectively: 1 is the fluid injection sealed piece, and 2 is fluid sealant, and 3 is insulation cushion, and 4 is cell cover, and 5 is compressive seal, and 6 is battery electrode column, and 7 is battery case, and 8 is the battery lower cover, and 9 is liquid injection hole.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, enumerate following examples now, and conjunction with figs. is described in detail as follows:
Please refer to Fig. 1: it is one that battery case 7 adopts electron beam or laser welding with battery lower cover 8, a through hole is arranged on the battery electrode column 6, as liquid injection hole 9, battery electrode column 6 is worn state's battery compression seal 5 sealing and fixing on cell cover 4, adopt electron beam or laser welding and battery case 7 to be connected as a single entity cell cover 4, an insulation cushion 3 is installed on the battery electrode column 6; After battery liquid-filling finishes, fluid sealant 2 is added the envelope liquid injection hole, the back is welded as a whole with liquid injection hole is suitable for reading with fluid injection sealed piece 1, makes leak rate less than 10
-8Am
3The hermetically sealed housing of a kind of lithium ion battery of/s.
Claims (5)
1. hermetically sealed housing of lithium ion battery, comprise battery case, battery electrode column, cell cover and battery lower cover, described battery electrode column is tightly connected by compressive seal and cell cover and is one, and it is characterized in that: described battery electrode column center is provided with liquid injection hole.
2. the hermetically sealed housing of lithium ion battery according to claim 1 is characterized in that: liquid injection hole is provided with fluid sealant and fluid injection sealed piece after the described fluid injection.
3. the hermetically sealed housing of lithium ion battery according to claim 1 is characterized in that: described battery case is an Al alloy shell.
4. the hermetically sealed housing of lithium ion battery according to claim 1 is characterized in that: described cell cover and described battery lower cover and described battery case are welded as a whole.
5. the hermetically sealed housing of lithium ion battery according to claim 2 is characterized in that: the fluid injection sealed piece suitable for reading and described of described liquid injection hole is welded as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200420056416.7U CN2752965Y (en) | 2004-12-03 | 2004-12-03 | Totally-sealing shell for lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200420056416.7U CN2752965Y (en) | 2004-12-03 | 2004-12-03 | Totally-sealing shell for lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2752965Y true CN2752965Y (en) | 2006-01-18 |
Family
ID=35914374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200420056416.7U Expired - Fee Related CN2752965Y (en) | 2004-12-03 | 2004-12-03 | Totally-sealing shell for lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2752965Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100438133C (en) * | 2006-03-28 | 2008-11-26 | 惠州亿纬锂能股份有限公司 | Disposable lithium-battery |
| CN102035042A (en) * | 2009-09-30 | 2011-04-27 | 三洋电机株式会社 | Method for manufacturing sealed battery |
-
2004
- 2004-12-03 CN CN200420056416.7U patent/CN2752965Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100438133C (en) * | 2006-03-28 | 2008-11-26 | 惠州亿纬锂能股份有限公司 | Disposable lithium-battery |
| CN102035042A (en) * | 2009-09-30 | 2011-04-27 | 三洋电机株式会社 | Method for manufacturing sealed battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |