Non-woven fabric base material for lithium ion secondary battery separator and lithium ion secondary battery separator
US10230087B2 · kind B2 · utility
2Cited by
2References
2Claims
0Family size
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Key dates
| Filing date | Jun 23, 2017 |
| Grant date | Mar 12, 2019 |
| Priority date | — |
| Expiry date | Jun 23, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A non-woven fabric base material for a lithium ion secondary battery separator composed mainly of a polyethylene terephthalate fiber, characterized in that the non-woven fabric base material comprises a polyethylene terephthalate binder fiber and a crystallized polyethylene terephthalate fiber, and the content of a polyethylene terephthalate binder fiber having a fiber length of 2.5 mm or less is 10 to 60 mass %.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.