Positive electrode active material for lithium secondary battery and lithium secondary battery
US12211997B2 · kind B2 · utility
0Cited by
0References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2019 |
| Grant date | Jan 28, 2025 |
| Priority date | — |
| Expiry date | Mar 4, 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 lithium secondary battery which includes a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and an electrolyte, wherein the positive electrode includes a lithium composite transition metal oxide powder having a layered structure and a nickel content accounting for 85 atm % or more of total transition metals, and wherein the lithium composite transition metal oxide powder undergoes a 3% or less change in lithium-oxygen (Li—O) interlayer spacing in a state-of-charge (SOC) range of 58% to 72%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.