锂离子蓄电池锂锰氧化物正极活性材料

综述了锂离子蓄电池正极活性材料锂锰氧化物目前的研究进展。介绍了国内外有关尖晶石LiMn2O4、无定形二氧化锰、层状m-LiMnO2和盐岩o-LiMnO2的研究工作。掺杂和表面处理是提高尖晶石LiMn2O4电化学性能的主要手段。无定形二氧化锰、层状m-LiMnO2和岩盐o-LiMnO2具有比尖晶石LiMn2O4更高的比容量，但有放电电压低和循环性能差的缺点。掺杂、表面处理和合成短程有序、长程无序的岩盐o-LiMnO2将成为今后锂锰氧化物材料的研究发展方向。

Positive active materials of lithium manganese oxides for lithium-ion batteries

The recent progress in the positive active materials of lithium manganese oxides for lithium-ion batteries was reviewed． The worldwide research works of spinel LiMn2O4， amorphous manganese dioxide， layered m-LiMnO2， rock salt o-LiMnO2 were introduced． Doping and surface treatment were two main methods for improving the electrochemical performance of spinel LiMn2O4． Amorphous manganese doxide， layered m-LiMnO2 and rock salt o-LiMnO2 had higher specific capacity than spinel LiMn2O4， and had disadvantages of low discharge potential and poor cycle performance． The further research work of lithium manganese oxides will be doping， surface treatment and synthesis of rock salt o-LiMnO2 which is ordered in short distance and disordered in long distance．