Lithium ion battery and cathode active material therefor
US11489150B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2019 |
| Grant date | Nov 1, 2022 |
| Priority date | — |
| Expiry date | Jun 9, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Certain embodiments of the disclosure relate to a bimodal-type cathode active material for a lithium ion battery. The cathode active material includes a mixture of layered LiCoO2 large particles and manganese-based olivine structural small particles. The manganese-based olivine structural small particles may be represented by chemical formula LiCoxMnyFezPO4 (0≤x≤1, 0<y≤1, 0≤z≤1, x+y+z=1). An average particle diameter of the large particles may be 16 to 25 μm, and an average particle diameter of the small particles may be 1 to 3 μm. The cathode active material of the disclosure can achieve high energy density and high voltage stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.