三氧化钼包覆改性镍锰酸锂正极材料  

Modification of Lithium Nickel Manganate Cathode Material by Molybdenum Trioxide Coating

作　　者：苏语婷 邢晓燕 李学田 SU Yuting;XING Xiaoyan;LI Xuetian(School of Environmental and Chemical Engineering,Shenyang Ligong University,Shenyang Liaoning 110159,China)

机构地区：[1]沈阳理工大学环境与化学工程学院,辽宁沈阳110159

出　　处：《辽宁化工》2024年第9期1399-1402,共4页Liaoning Chemical Industry

摘　　要：为了进一步提高镍锰酸锂正极材料的电化学性能,对其进行了三氧化钼包覆改性,分析结果表明:三氧化钼包覆没有改变镍锰酸锂正极材料的基本结构,在0.2C倍率下首次放电比容量为120 mAh·g^(-1),库仑效率为93.76%。50次循环后容量几乎没有衰减,说明适量的三氧化钼包覆改性镍锰酸锂正极材料会提高其电化学性能。In order to further improve the electrochemical performance of lithium nickel manganate cathode material,it was modified by molybdenum trioxide coating.The analysis results showed that the molybdenum trioxide coating did not change the basic structure of lithium nickel manganate cathode material,and the first discharge specific capacity was 120 mA·h·g^(-1) at 0.2 C rate,and the Coulomb efficiency was 93.76%.After 50 cycles,the capacity had almost no attenuation,which showed that modification of lithium nickel manganate cathode material by appropriate amount of molybdenum trioxide coating could improve its electrochemical performance.

关 键 词：镍锰酸锂 包覆改性 三氧化钼 电化学性能 

分 类 号：TQ131.11[化学工程—无机化工] TM912[电气工程—电力电子与电力传动]