Battery electrolyte solutions containing phosphorus-sulfur compounds
US9147906B2 · kind B2 · utility
4Cited by
3References
8Claims
0Family size
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Key dates
| Filing date | Nov 16, 2009 |
| Grant date | Sep 29, 2015 |
| Priority date | — |
| Expiry date | Nov 9, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A battery electrolyte solution contains from 0.001 to 20% by weight of certain phosphorus-sulfur compounds. The phosphorus-sulfur compound performs effectively as a solid-electrolyte interphase (SEI) forming material. The phosphorus-sulfur compound has little adverse impact on the electrical properties of the battery, and in some cases actually improves battery performance. Batteries containing the electrolyte solution form robust and stable SEIs even when charged at high rates during initial formation cycles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.