采用熔盐法在不同温度下制备出层状浓度梯度型LiNi1-x-yCoxMnyO2正极材料.经XRD,SEM实验分析表明:材料具有典型的a-NaFeO2层状结构,粒径在200～400nm之间.在2.75～4.5V充放电电压范围内测试,800℃得到的材料首次放电比容量为166.8mAh/g,保持率为99％;同时,在2C电流以内充放电,该材料表现出较稳定的倍率性能.
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