Battery separator comprising hydrofluoric acid reduction material
US10811661B2 · kind B2 · utility
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2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2018 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Aug 20, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A separator including a polyolefin-based separator substrate having a porous structure, a first coating portion including a mixture of inorganic particles and a binder polymer, and a second coating portion including a material that reduces generation of hydrofluoric acid, wherein the first coating portion and the second coating portion are located on the separator substrate, are located in pores in the separator substrate, or are located on the separator substrate and in pores in the separator substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.