High voltage laminar cathode materials for lithium rechargeable batteries, and process for making the same
US7238450B2 · kind B2 · utility
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Key dates
| Filing date | Dec 23, 2003 |
| Grant date | Jul 3, 2007 |
| Priority date | — |
| Expiry date | Sep 7, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Intercalation cathode materials especially suited for use in high-voltage, high-energy lithium rechargeable batteries, having the formulae Li[Li(1-2x)/3MyMn(2−x)/3Ni(x-y)O2, where 0<x<0.5, 0<y≦0.25, x>y, and M is one or more divalent cations from Ca, Cu, Mg, and Zn. A process for making such materials is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.