Negative electrode active material for lithium-ion battery, negative electrode for lithium-ion battery and lithium-ion battery
US11862787B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Jan 30, 2020 |
| Grant date | Jan 2, 2024 |
| Priority date | — |
| Expiry date | May 11, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a negative electrode active material for a lithium-ion battery, containing a Si phase, a Si—Zr compound phase, and a Sn—X compound phase in which X is at least one element selected from the group consisting of Cu, Ti, Co, Fe, Ni, and Zr, the Sn—X compound phase has a proportion of 0.1 mass % to 18 mass % to the whole, and the Si phase has a proportion of 10 mass % to 80 mass % to the whole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.