Positive electrode active material for non-aqueous electrolyte secondary battery and method for producing the same
US11522184B2 · kind B2 · utility
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Key dates
| Filing date | Sep 27, 2019 |
| Grant date | Dec 6, 2022 |
| Priority date | — |
| Expiry date | Aug 27, 2040 |
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 non-aqueous electrolyte secondary battery that includes a lithium transition metal composite oxide having a spinel structure and containing nickel and manganese is provided. The positive electrode active material includes a first surface region having a chemical composition with a molar ratio of nickel to manganese of 0.1 or less on the surface of the lithium transition metal composite oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.