Nonaqueous electrolyte secondary battery porous layer
US12191439B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Apr 15, 2020 |
| Grant date | Jan 7, 2025 |
| Priority date | — |
| Expiry date | Jul 11, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An aspect of the present invention provides a nonaqueous electrolyte secondary battery porous layer that has both favorable ion permeability and favorable peeling strength. A nonaqueous electrolyte secondary battery porous layer in accordance with an aspect of the present invention includes: a resin; and a filler, the nonaqueous electrolyte secondary battery porous layer having a thickness of less than 8.0 μm, the nonaqueous electrolyte secondary battery porous layer having a surface roughness (Ra) of not more than 0.15 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.