Electrolytes with lithium difluoro(oxalato)borate and lithium tetrafluoroborate salts for lithium metal and anode-free cells
US12388115B2 · kind B2 · utility
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28Claims
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Key dates
| Filing date | Jan 8, 2019 |
| Grant date | Aug 12, 2025 |
| Priority date | — |
| Expiry date | Aug 12, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided are electrolyte solutions including both lithium difluoro(oxalato)borate and lithium tetrafluoroborate and a solvent component for use in lithium metal or anode-free rechargeable battery cell and methods of using the electrolyte solutions to improve capacity retention of the battery cells. Also provided are rechargeable battery systems including a lithium metal or anode-free battery cell and electrolyte solutions including both lithium difluoro(oxalato)borate and lithium tetrafluoroborate and a solvent component. The systems described herein exhibit improved capacity retention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.