Negative electrode material of lithium ion secondary battery, preparation method thereof and use thereof
US12166210B2 · kind B2 · utility
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Key dates
| Filing date | Aug 1, 2019 |
| Grant date | Dec 10, 2024 |
| Priority date | — |
| Expiry date | May 20, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a negative electrode material of a lithium ion secondary battery. The negative electrode material includes a carbon coating layer and a core layer. The core layer includes lithium polysilicate and silicon oxide, and silicon is uniformly embedded in the lithium polysilicate and/or in the silicon oxide. The negative electrode material has high first coulomb efficiency, long cycle performance, excellent rate performance and high safety.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.