CN1063201C - Sealing washer and its use - Google Patents
Sealing washer and its use Download PDFInfo
- Publication number
- CN1063201C CN1063201C CN96120949A CN96120949A CN1063201C CN 1063201 C CN1063201 C CN 1063201C CN 96120949 A CN96120949 A CN 96120949A CN 96120949 A CN96120949 A CN 96120949A CN 1063201 C CN1063201 C CN 1063201C
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- China
- Prior art keywords
- seal washer
- sealing washer
- test
- polyester
- sealing
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- 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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- 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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- Sealing Battery Cases Or Jackets (AREA)
- Gasket Seals (AREA)
Abstract
The present invention relates to the application of a sealing washer. The sealing washer is made from the compounds of polyester elastomers; the outer diameter phi of the round sealing washer is from 8mm to 15mm, and the inner diameter phi is from 5mm to 12mm. When the sealing washer is used in batteries, the sealing washer has the advantages of no liquid leakage or liquid penetration, no need of coating oil, easy processing and low price.
Description
The present invention relates to a kind of seal washer of making of macromolecular elastomer, specially refer to once a kind of seal washer of or secondary cell.
United States Patent (USP) 3,922,178 (1975) and 4,220,694 (1980) to disclose cell sealing be to need oiled seal washer, program complexity during the sealing washer sealing.United States Patent (USP) 5,198,314 (1993) have reported a kind of oiled seal washer that do not need again, and the sealing circle has good sealing effectiveness, and used seal washer material is polyphenylene sulfide (PPS).But polyphenylene thioether PPS is not an elastomer material, processing difficulties and cost height.
Seal washer of the present invention has overcome the shortcoming of complete processing complexity, cost height, processing difficulties in the prior art and a kind of seal washer of making of polyester elastomer and mixture thereof is provided, the sealing packing ring has elasticity, good sealing effect, surface do not need oiling, again processing easily.
Seal washer of the present invention is that a kind of polyester-polyether multi-block copolymer mixture is made, and comprises following component and content: (weight part)
100 parts of polyester elastomers
Polycarbodiimide 0-5 part
Alkene family macromolecule 0-20 part
Above-mentioned polyester elastomer is a kind of polyester-polyether multi-block copolymer, and its structure is as follows: hard segment:
Soft chain segment:
N=14 or 28 wherein
Polyester elastomer is formed (weight %): hard segment: 50-85
Soft chain segment: 15-50
Polyester elastomer limiting viscosity [η]=1.0-1.6
Seal washer of the present invention when being used for cell sealing, the size of its seal washer, external diameter φ 8-155mm, internal diameter φ 5-12mm, Fig. 1 are circular batteries seal washer synoptic diagram.
The purposes of seal washer of the present invention can be used in battery or hollow container.
Above-mentioned seal washer also can adopt polymorphic structure to see Fig. 2.
Method for making: cell sealing packing ring of the present invention can adopt the method direct injection moulding of general plastic shaping, promptly after temperature reaches the melt temperature of polyester elastomer or its mixture, and the direct injection moulding.
Seal washer of the present invention does not need oiling, processing easily, and price is more cheap, and the test of check seal washer sealing is as follows:
1, seals test, be divided into dual mode: fill 8N KOH solution in (1) battery case and add the seal washer direct sealing, cleaned outside 2 hours with borate, with 1% phenolphthalein inspection, (2) opening changes into battery, adds seal washer and seals, after cleaning outside 2 hours, with 1% phenolphthalein inspection.
2,0.4C discharges and recharges test.After 3.5 hours, discharge into 1.0V with the 400mA charging, charge and discharge two cycles, 27-35 ℃ of following normal temperature was deposited 15 days.
3,1.0C discharges and recharges test.With 1000mA charging 72 minutes, be discharged to 1.0V again, fill, put two cycles, in 50 ± 2 ℃ of constant temperature ovens, placed 10 days.
4,80 ℃ of shelf tests.After test 3 is finished, be placed on 80 ± 2 ℃ of constant temperature ovens 24 hours.
5, soda boiling test.Seal washer is directly put into 8N KOH alkali lye boiled (～120 ℃) 2 hours.Above-mentioned cell sealing packing ring is not climbed liquid through testing 1,2,3,4 equal no leakages.Through testing 5, seal washer is not damaged.
Embodiment 1,
The employing polyester elastomer (hard segment: soft chain segment=70: 30) be processed into A type secondary cell seal washer (internal diameter φ 12mm, external diameter 14.8mm), be used for lithium cell, not oiling, no leakage after sealing test is not climbed liquid.
Embodiment 2,
Soft chain segment=80: 20) and the mixture of 1 part of polycarbodiimide adopt 100 parts of polyester elastomers (hard segment:, be processed into AA type secondary cell seal washer (internal diameter 9mm, external diameter 13.3mm), be used for secondary cell No. 5, through sealing test, 0.4C and 1.0C discharge and recharge test, after 80 ℃ of shelf tests and the soda boiling test, all no leakage do not climb liquid, and seal washer is not damaged yet.
Embodiment 3,
Soft chain segment=80: 20) and the mixture of 3 parts of polycarbodiimides adopt 100 parts of polyester elastomers (hard segment:, be processed into AA type secondary cell seal washer (internal diameter 9mm, external diameter 13.3mm), be used for secondary cell No. 5, not oiling is through sealing test, after 0.4C and 1.0C discharge and recharge test and 80 ℃ of shelf tests, all no leakage is not climbed liquid.
Embodiment 4,
Adopt polyester elastomer (hard segment: soft chain segment=80: 20) be processed into AAA type secondary cell seal washer (internal diameter 6.3mm, external diameter 9.4mm), be used for battery No. 7, not oiling is through sealing test, after 0.4C and 1.0C discharge and recharge test and 80 ℃ of shelf tests, all no leakage is not climbed liquid.
Embodiment 5
Adopt 100 parts of polyester elastomers (hard segment: soft chain segment=80: 20) and the mixture of 1 part of polycarbodiimide be processed into AAA type secondary cell seal washer (internal diameter 6.3mm, external diameter 9.4mm), be used for battery No. 7, not oiling, through sealing test, after 0.4C and 1.0C discharge and recharge test and 80 ℃ of shelf tests, equal no leakages, do not climb liquid, after the soda boiling test, be not damaged.
Embodiment 6,
Soft chain segment=80: 20) and the mixture of 2 parts of alkene family macromolecules adopt 100 parts of polyester elastomers (hard segment:, be processed into AA type secondary cell seal washer (internal diameter 9mm, external diameter 13.3mm), be used for secondary cell No. 5, through sealing test, 0.4C and 1.0C discharge and recharge test, after 80 ℃ of shelf tests and the soda boiling test, all no leakage do not climb liquid, and seal washer is not damaged yet.
Embodiment 7,
Soft chain segment=80: 20) and the mixture of 18 parts of alkene family macromolecules adopt 100 parts of polyester elastomers (hard segment:, be processed into AA type secondary cell seal washer (internal diameter 9mm, external diameter 13.3mm), be used for secondary cell No. 5, not oiling is through sealing test, after 0.4C and 1.0C discharge and recharge test and 80 ℃ of shelf tests, all no leakage is not climbed liquid.
Claims (5)
1, a kind of seal washer, the material that it is characterized in that described a kind of seal washer is the polyester elastomer mixture, its composition and content are as follows: (weight part)
100 parts of polyester elastomers
Polycarbodiimide 0-5 part
Alkene family macromolecule 0-20 part
2, a kind of seal washer according to claim 1 is characterized in that described polyester elastomer is polyester one a polyethers segmented copolymer, its limiting viscosity [η]=1.0-1.6.
3, a kind of seal washer according to claim 1 is characterized in that described packing ring is for circular or special-shaped.
4, a kind of seal washer according to claim 3 is characterized in that described rounded washers external diameter φ=8-15mm, internal diameter φ=5-12mm.
5, the purposes of a kind of seal washer according to claim 1, its feature is used in battery or hollow container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96120949A CN1063201C (en) | 1996-12-06 | 1996-12-06 | Sealing washer and its use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96120949A CN1063201C (en) | 1996-12-06 | 1996-12-06 | Sealing washer and its use |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1184215A CN1184215A (en) | 1998-06-10 |
| CN1063201C true CN1063201C (en) | 2001-03-14 |
Family
ID=5126685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96120949A Expired - Fee Related CN1063201C (en) | 1996-12-06 | 1996-12-06 | Sealing washer and its use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1063201C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6878486B2 (en) * | 2001-12-20 | 2005-04-12 | Eveready Battery Company, Inc. | Seal for electrochemical cell |
| CN102290543A (en) * | 2011-07-19 | 2011-12-21 | 深圳市豪鹏科技有限公司 | Sealing ring and manufacturing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53104820A (en) * | 1977-02-23 | 1978-09-12 | Hitachi Maxell | Gasket for battery |
| US4623599A (en) * | 1985-06-27 | 1986-11-18 | Union Carbide Corporation | Double-grooved gasket for galvanic cells |
| JPH04335041A (en) * | 1991-05-10 | 1992-11-24 | Shin Etsu Chem Co Ltd | Heat-shrinkable polyester film |
-
1996
- 1996-12-06 CN CN96120949A patent/CN1063201C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53104820A (en) * | 1977-02-23 | 1978-09-12 | Hitachi Maxell | Gasket for battery |
| US4623599A (en) * | 1985-06-27 | 1986-11-18 | Union Carbide Corporation | Double-grooved gasket for galvanic cells |
| JPH04335041A (en) * | 1991-05-10 | 1992-11-24 | Shin Etsu Chem Co Ltd | Heat-shrinkable polyester film |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1184215A (en) | 1998-06-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |