Multilayer separator including polyolefin based substrate layer stacked with polyolefin resin layer and cellulose fibers based outer layer, and lithium ion battery including the same
US12148952B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Nov 8, 2021 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Feb 28, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A multilayer separator (200) for a lithium-ion battery having a structure including at least a polyolefin based substrate layer (204) forming the inner layer of the multilayer separator (200); a resin layer (203) stacked on both surface of the polyolefin substrate layer (204), the resin layer (203) being formed from a polyolefin; a cellulose fibers based outer layer (202) stacked on the surface of each resin layer (203).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.