Layer-layer lithium rich complex metal oxides with high specific capacity and excellent cycling
US8394534B2 · kind B2 · utility
25Cited by
36References
24Claims
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Key dates
| Filing date | Aug 27, 2010 |
| Grant date | Mar 12, 2013 |
| Priority date | — |
| Expiry date | Jun 21, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Lithium rich and manganese rich lithium metal oxides are described that provide for excellent performance in lithium-based batteries. The specific compositions can be engineered within a specified range of compositions to provide desired performance characteristics. Selected compositions can provide high values of specific capacity with a reasonably high average voltage. Compositions of particular interest can be represented by the formula, xLi2MnO3.(1−x)LiNiu+ΔMnu−ΔCowAyO2. The compositions undergo significant first cycle irreversible changes, but the compositions cycle stably after the first cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.