Precursor and method for preparing Ni based cathode material for rechargeable lithium ion batteries
US11804599B2 · kind B2 · utility
0Cited by
0References
7Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | May 18, 2022 |
| Grant date | Oct 31, 2023 |
| Priority date | — |
| Expiry date | May 18, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A crystalline precursor compound for manufacturing a lithium transition metal based oxide powder usable as an active positive electrode material in lithium-ion batteries, the precursor having a general formula Li1−a((Niz(Ni0.5Mn0.5)yCox)1−kAk)1+aO2, wherein A comprises at least one element of the group consisting of: Mg, Al, Ca, Si, B, W, Zr, Ti, Nb, Ba, and Sr, with 0.05≤x≤0.40, 0.25≤z≤0.85, x+y+z=1, 0≤k≤0.10, and 0≤a≤0.053, wherein said crystalline precursor powder has a crystalline size L, expressed in nm, with 15≤L≤36.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.