Method for producing lithium composite oxide for use as positive electrode active material for lithium secondary batteries
US7829045B2 · kind B2 · utility
3Cited by
3References
14Claims
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Key dates
| Filing date | Apr 30, 2004 |
| Grant date | Nov 9, 2010 |
| Priority date | — |
| Expiry date | Jan 8, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed herein is a method for producing a lithium composite oxide for use as a positive electrode active material for lithium secondary batteries by a spray pyrolysis process. The method comprises the steps of: subjecting an inorganic acid salt solution of metal elements constituting a final composite oxide other than lithium to a spray pyrolysis process to obtain an intermediate composite oxide powder; and solid state-mixing the intermediate composite oxide powder and a hydroxide salt of lithium, followed by thermally treating the mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.