Anode active material for lithium secondary battery, method of manufacturing same and lithium secondary battery comprising same
US11545664B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2019 |
| Grant date | Jan 3, 2023 |
| Priority date | — |
| Expiry date | Jun 24, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to an anode active material for a lithium secondary battery, a method of manufacturing the anode active material, and a lithium secondary battery including the anode active material. The anode active material includes natural graphite particles configured such that flaky natural graphite fragment particles having uneven (□□) surface defects are structured in a cabbage shape or at random and granulated, the surface and the inside of the natural graphite particles including a gap formed between the flaky natural graphite fragment particles, and a coating layer including amorphous or semicrystalline carbon formed on the surface of the flaky natural graphite fragment particles that form the gap and the surface of the natural graphite particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.