LITHIUM-ENRICHED SOLID SOLUTION ANODE COMPOSITE MATERIAL AND PREPARATION METHOD FOR LITHIUM-ENRICHED SOLID SOLUTION ANODE COMPOSITE MATERIAL, LITHIUM-ION BATTERY ANODE PLATE, AND LITHIUM-ION BATTERY
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Dec 9, 2013
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Sep 17, 2012
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Abstract
Embodiments of the present application provide a lithium-enriched solid solution anode composite material, which includes xLi2MnO3.(1-x)MO and a LiMePO4 layer that is clad on a surface of xLi2MnO3.(1-x)MO, where x<1, M is one or more selected from: Ni, Co, Mn, Ti, and Zr, and Me is one or more selected from: Co, Ni, V, and Mg. The lithium-enriched solid solution anode composite material has high stability in an electrolyte, may improve a cycle life, discharge capacity, rate performance, and initial charge-discharge efficiency of a lithium-ion battery, and is applicable in a condition of a high voltage greater than 4.6V. The embodiments of the present application further provide a preparation method for the lithium-enriched solid solution anode composite material, a lithium-ion battery anode plate containing the lithium-enriched solid solution anode composite material, and a lithium-ion battery containing the lithium-ion battery anode plate.
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