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一种富锂锰基正极材料及其制备方法
Authors
刘兆平
刘娟娟
夏永高
张茜
Publication date
5 June 2013
Publisher
Abstract
本发明提供一种富锂锰基正极材料及其制备方法,所述富锂锰基正极材料包括如式(Ⅰ)所示的富锂化合物和如式(Ⅱ)所示的包覆层。所述富锂锰基正极材料的制备方法包括以下步骤:将络合剂、第一分散剂与如式(Ⅰ)所示的富锂化合物混合后进行第一次热处理;将第一次热处理的产物与锂源化合物、第二分散剂混合后进行第二次热处理,得到富锂锰基正极材料。实验结果表明,本发明所述的富锂锰基正极材料具有较高的首次效率和循环性能;xLi2MnO3·(1-x)Li(MaM′b)O2(Ⅰ);yLiMn2O4·(1-y)Li(MaM′b)O2????(Ⅱ)
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Last time updated on 22/01/2018