采用改进的高温固相法合成锂离子电池正极材料LiNixCo1-2xMnxO2.考察不同x值、不同Li/(Ni+Co+Mn)摩尔比、不同焙烧温度、不同煅烧时间对其电化学性能的影响并通过XRD对其结构进行表征.结果表明,提高Co含量可以改善材料的循环性能;当n(Li)/n(M)(M=Ni, Co, Mn)=1.10,在950~1000 ℃煅烧20 h时,可得到电化学性能优良的正极材料.
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