Manganese oxide composite electrodes for lithium batteries
US7635536B2 · kind B2 · utility
49Cited by
7References
8Claims
0Family size
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Key dates
| Filing date | Aug 16, 2005 |
| Grant date | Dec 22, 2009 |
| Priority date | — |
| Expiry date | Feb 13, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An activated electrode for a non-aqueous electrochemical cell is disclosed with a precursor thereof a lithium metal oxide with the formula xLi2MnO3.(1−x)LiMn2−yMyO4 for 0.5<x<1.0 such that the spinel component constitutes less than 50 mole % of the precursor electrode and 0≦y<1 in which the Li2MnO3 and LiMn2-yMyO4 components have layered and spinel-type structures, respectively, and in which M is one or more metal cations. The electrode is activated by removing lithia, or lithium and lithia, from the precursor. A cell and battery are also disclosed incorporating the disclosed positive electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.