Battery separator, and battery separator manufacturing method
US9293754B2 · kind B2 · utility
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Key dates
| Filing date | Feb 7, 2013 |
| Grant date | Mar 22, 2016 |
| Priority date | — |
| Expiry date | May 20, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A battery separator includes a porous membrane A including a polyethylene resin, and a porous membrane B laminated thereon including a heat resistant resin and inorganic particles or cross-linked polymer particles, wherein the porous membrane A satisfies expressions (a) to (c), and the entire battery separator satisfies expressions (d) to (f).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.