Anode active material for batteries, and method for preparing same
US12148925B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 29, 2020 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Jan 24, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An anode active material for batteries including anode active substance particles that include a silicon oxide compound. The anode active substance particles includes lithium and a non-lithium doping metal, where the non-lithium doping metal includes a metal M1 including one or more of titanium, magnesium, zirconium, zinc, aluminum, yttrium and calcium, and the content of the non-lithium doping metal in the anode active material is 0.01-20 wt %, for example 0.05-15 wt %, in another example 0.1-10 wt %, and in still another example 0.1-5 wt %. The anode active material has high water tolerance, and a secondary battery prepared from the anode active material has the advantages of high capacity, high coulombic efficiency and long cycle life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.