Positive electrode active material for lithium ion secondary battery, method of manufacturing positive electrode active material for lithium ion secondary battery, and lithium ion secondary battery
US12166204B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2020 |
| Grant date | Dec 10, 2024 |
| Priority date | — |
| Expiry date | Oct 12, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A positive electrode active material for a lithium ion secondary battery containing lithium composite oxide particles, the lithium composite oxide particles including lithium (Li), nickel (Ni), manganese (Mn), zirconium (Zr), and an additive element M (M) in an amount of substance ratio of Li:Ni:Mn:Zr:M=a:b:c:d:e, wherein 0.95≤a≤1.20, 0.70≤b≤0.98, 0.01≤c≤0.20, 0.0003≤d≤0.01, and 0.01≤e≤0.20, and the additive element M is one or more elements selected from Co, W, Mo, V, Mg, Ca, Al, Ti, and Ta, wherein, a unit lattice volume V (Å3) determined from lattice constants a and c that are calculated from an X-ray diffraction pattern in the lithium composite oxide is 117.5 Å3 or more and 118.0 Å3 or less, and a ratio I(003)/I(104) of a peak strength I(003) of a (003) plane to a peak strength I(104) of a (104) plane is 1.70 or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.