Method of making fine lithium iron phosphate/carbon-based powders with an olivine type structure
US7390473B1 · kind B1 · utility
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9Claims
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Key dates
| Filing date | Jun 24, 2005 |
| Grant date | Jun 24, 2008 |
| Priority date | — |
| Expiry date | Aug 17, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Processes for producing fine LiFePO4/C and nanostructured LiFexM1−xPO4/C composite powders, where 1≦x≦0.1 and M is a metal cation. Electrodes made of either nanostructured LiFexM1−xPO4 powders or nanostructured LiFexM1−xPO4/C composite powders exhibit excellent electrochemical properties. That will provide high power density, low cost and environmentally friendly rechargeable Li-ion batteries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.