Cathode active materials for secondary batteries
US11764355B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Jan 22, 2020 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | May 31, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cathode active material of formula LiNixMnyAlzMαO2-εBε or NaNix′Mny′Alz′M′α′O2-ε′Bε′, wherein M is a combination of Ti, and Mg; M′ is Ti, Mg, or a combination of thereof; B is selected from the group of F, S, Se, or Cl; 0.8<x<1, 0<y<0.2, 0<z≤0.2, 0≤α≤0.2, 0≤ε≤0.1, 0.5<x′<1, 0<y′<0.5, 0<z′≤0.2, 0≤α′≤0.2, and 0≤ε′≤0.1. The particle is a single crystal, a single particle, or a secondary particle comprising a plurality of primary particles; and the particle is a uniform composition or a concentration gradient composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.