Electrolyte formulations for electrochemical cells containing a silicon electrode
US10797349B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Nov 12, 2018 |
| Grant date | Oct 6, 2020 |
| Priority date | — |
| Expiry date | Nov 12, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Additives to electrolytes that enable the formation of comparatively more robust SEI films on silicon anodes. The SEI films in these embodiments are seen to be more robust in part because the batteries containing these materials have higher coulombic efficiency and longer cycle life than comparable batteries without such additives. The additives preferably contain a nitrate group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.