Method for producing positive cathode material for lithium battery, and lithium battery
US7498098B2 · kind B2 · utility
1Cited by
0References
5Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Oct 17, 2003 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | Oct 17, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for producing a cathode material for a lithium battery, characterized in that it comprises admixing a compound liberating a phosphate ion in a solution and metallic iron, and dissolving the metallic iron, followed by firing, thereby synthesizing ferric phosphate. The above method further comprising reacting a raw material mixture while grinding it down or refluxing can produce ferric phosphate cathode material having a fine particle diameter and exhibiting high activity, through a precursor before firing having a fine particle diameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.