Cathode material for lithium-ion rechargeable batteries
US9608266B2 · kind B2 · utility
2Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2015 |
| Grant date | Mar 28, 2017 |
| Priority date | — |
| Expiry date | Oct 29, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed are a cathode active material and a method to produce the same at low cost. The cathode powder comprises modified doped LiCoO2 carrying a secondary phase having either one of space groups Fm-3m or Fd-3mS. The modified LiCoO2 is Ni and Mn bearing and has regions of low and high manganese content, where regions with high manganese content are located in islands on the surface. The cathode material has high cycling stability, a very high rate performance and good high temperature storage properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.