Lithium ion battery electrolyte additive
US11876181B2 · kind B2 · utility
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34Claims
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Key dates
| Filing date | Jun 1, 2021 |
| Grant date | Jan 16, 2024 |
| Priority date | — |
| Expiry date | Oct 3, 2041 |
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 phosphorus additive that is useful for stable cycling and storage of lithium ion cells at high temperatures, an electrolyte containing the phosphorus additive, and an electrochemical energy storage device containing the electrolyte. An electrolyte includes an aprotic organic solvent system; a metal salt; and at least one thiophosphate additive having a nitrile terminal group, according to the formula:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.