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PREPARATION METHOD FOR OLIVINE TYPE CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY USING THE SAME
PREPARATION METHOD FOR OLIVINE TYPE CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY USING THE SAME
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机译:锂二次电池用橄榄型阴极活性材料的制备方法及使用该材料的锂二次电池
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摘要
The present invention relates to a method for preparing an olivine type cathode active material for a lithium secondary battery, and a lithium secondary battery using the same. The method for preparing an olivine type cathode active material for a lithium secondary battery of the present invention comprises: (S1) a step of preparing a specific manganese phosphate or phosphate iron manganese hydrate by coprecipitation; (S2) a step of press-molding a mixture comprising the manganese phosphate or manganese iron phosphate hydrate, lithium compound, and a carbon material to prepare a plasticizing precursor; and (S3) a step of plasticizing the plasticizing precursor. The preparation method of the present invention has an excellent reproducibility, and the cathode active material prepared has an improved capacity.
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