Active material powder for use in a negative electrode of a battery and a battery comprising such an active material powder
US11450849B2 · kind B2 · utility
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Key dates
| Filing date | Jun 11, 2019 |
| Grant date | Sep 20, 2022 |
| Priority date | — |
| Expiry date | Jun 11, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An active material powder for use in a negative electrode of a battery, wherein the active material powder comprises active material particles, wherein the active material particles comprise silicon-based particles, wherein when said active material powder is crossed by a plane, then at least 65% of the discrete cross-sections of the silicon-based particles included in that plane, satisfy optimized conditions of shape and size, allowing the battery containing such an active material powder to achieve a superior cycle life and a production method of such an active material powder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.