Method for manufacturing a positive electrode active material for lithium battery
US5759717A · kind A · utility
26Cited by
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4Claims
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Key dates
| Filing date | Oct 9, 1996 |
| Grant date | Jun 2, 1998 |
| Priority date | — |
| Expiry date | Oct 9, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for manufacturing positive a electrode active material for a lithium battery represented by general formula Li.sub.x Mn.sub.2-y M.sub.y O.sub.4 (M: a 2-valency metal, 0.45.ltoreq.y.ltoreq.0.60, 1.ltoreq.x.ltoreq.2.1) having cubic spinel structure of and a lattice constant within 8.190 angstroms by employing a solid phase reaction, comprising the steps of firing a lithium compound, a manganese compound and a metal M compound and refiring the fired material after pressurizing it at least once to remove a metal M oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.