LAYER-LAYER LITHIUM RICH COMPLEX METAL OXIDES WITH HIGH SPECIFIC CAPACITY AND EXCELLENT CYCLING
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United States of America Patent
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Aug 21, 2014
app pub date -
Apr 7, 2014
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Aug 27, 2009
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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, x Li2MnO3.(1−x) Li Niu+ΔMnu−ΔCowAyO2). The compositions undergo significant first cycle irreversible changes, but the compositions cycle stably after the first cycle.
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