Stoichiometric lithium cobalt oxide and method for preparation of the same
US7883644B2 · kind B2 · utility
8Cited by
2References
16Claims
0Family size
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Key dates
| Filing date | Mar 20, 2007 |
| Grant date | Feb 8, 2011 |
| Priority date | — |
| Expiry date | Jun 21, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A LiCoO2-containing powder. and a method for preparing a LiCoO2-containing powder, includes LiCoO2 having a stoichiometric composition via heat treatment of a lithium cobalt oxide and a lithium buffer material to make an equilibrium of a lithium chemical potential therebetween; the lithium buffer material which acts as a Li acceptor or a Li donor to remove or supplement a Li-excess or a Li-deficiency, the lithium buffer material coexisting with the stoichiometric lithium metal oxide. Also an electrode includes the LiCoO2-containing powder as an active material, and a rechargeable battery includes the electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.