Composite lithium battery separator and preparation method therefor
US12040507B2 · kind B2 · utility
0Cited by
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18Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 26, 2018 |
| Grant date | Jul 16, 2024 |
| Priority date | — |
| Expiry date | Apr 29, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to a composite lithium battery separator and a preparation process therefor. The composite lithium battery separator includes a base film or a ceramic film, and a coating layer covering one side or both sides of the base film or the ceramic film. The coating layer is formed by coating a slurry. The slurry includes 5%-45% by weight of a coating polymer and 55%-95% by weight of an organic solvent, and the coating polymer includes 10-100 parts by weight of a fluorine or acrylic resin polymer, 0.5-10 parts of a polymer adhesive, and 0-90 parts of inorganic nanoparticles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.