Cathode material for lithium battery
US6916579B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2002 |
| Grant date | Jul 12, 2005 |
| Priority date | — |
| Expiry date | Apr 9, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/252
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cathode composition for lithium ion and lithium metal batteries includes a transitional metal oxide and an adsorbate layer disposed on a surface of the transitional metal oxide. The transitional metal oxide and the adsorbate layer are both electrochemically active. A method of forming cathode materials for lithium ion and lithium metal batteries includes the steps of providing reagents including at least one elemental chalcogenide or chalcogenic oxide and a transitional metal oxide. The reagents are heated, wherein a cathode composition is formed having a chalcogenic complex adsorbed to a bulk material, the bulk material being a modification of the transitional metal oxide. The transitional metal oxide is preferably a vanadium oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.