Positive electrode active material for lithium ion secondary battery and lithium ion secondary battery
US12334549B2 · kind B2 · utility
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Key dates
| Filing date | Aug 28, 2020 |
| Grant date | Jun 17, 2025 |
| Priority date | — |
| Expiry date | Mar 20, 2042 |
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, the positive electrode active material including a lithium-nickel composite oxide having a hexagonal layered structure and configured by particles including at least either single primary particles or secondary particles with a plurality of aggregated primary particles, wherein the particles of the positive electrode active material have a cross section having an area proportion of a crystal face having a maximum area in the particle of 80% or more when one crystal face is defined as a region having a crystal misorientation of 15° or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.