Manganese oxide composite electrodes for lithium batteries
US7790308B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2009 |
| Grant date | Sep 7, 2010 |
| Priority date | — |
| Expiry date | Nov 5, 2029 |
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 x{zLi2MnO3.(1−z)LiM′O2}.(1−x)LiMn2−yMyO4 for 0<x<1; 0≦y≦0.5; and 0<z<1, comprised of layered zLi2MnO3.(1−z)LiM′O2 and spinel LiMn2−yMyO4 components, physically mixed or blended with one another or separated from one another in a compartmentalized electrode, in which M is one or more metal ions, and in which M′ is selected from one or more first-row transition metal ions, The electrode is activated by removing 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.