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Surface coating method and a method for reducing irreversible capacity loss of a lithium rich transitional oxide electrode
Surface coating method and a method for reducing irreversible capacity loss of a lithium rich transitional oxide electrode
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机译:表面涂覆方法和减少富锂过渡氧化物电极的不可逆容量损失的方法
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摘要
A surface coating method and a method for reducing irreversible capacity loss of a lithium rich transitional oxide electrode are disclosed herein. In an example of the surface coating method, a dispersion of a lithium rich transitional oxide powder and an oxide precursor or a phosphate precursor in a liquid is formed. The liquid is evaporated. The forming and evaporating steps are carried out in the absence of air to prevent precipitation of the oxide precursor or the phosphate precursor. Hydrolyzation of the oxide precursor or the phosphate precursor is controlled under predetermined conditions, and an intermediate product is formed. The intermediate product is annealed to form an oxide coated lithium rich transitional oxide powder or the phosphate coated lithium rich transitional oxide powder.
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