Method for preparing cathode active material
US8795550B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Dec 28, 2009 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | May 19, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for preparing a cathode active material includes mixing a phosphorus source material, a lithium source material, and a dispersing agent together to form a first liquid mixture. An iron powder is added into the first liquid mixture. The first liquid mixture with the iron powder therein is dried to achieve a precursor. The precursor is calcined in a protective gas at a temperature of about 600° C. to about 800° C. for more than about 2 hours.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.