Silicon particles for battery electrodes
US11539041B2 · kind B2 · utility
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23Claims
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Key dates
| Filing date | Apr 15, 2022 |
| Grant date | Dec 27, 2022 |
| Priority date | — |
| Expiry date | Apr 15, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Silicon particles for use in an electrode in an electrochemical cell are provided. The silicon particles may have outer regions extending about 20 nm deep from the surfaces, the outer regions comprising an amount of aluminum such that a bulk measurement of the aluminum comprises at least about 0.01% by weight of the silicon particles. The bulk measurement of the aluminum may provide the amount of aluminum present at least in the outer regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.