【摘要】 Li2MnO3和LiMO2(M=Ni,Co)层状固溶体系正极材料首次放电容量可以达到220 mAh/g左右,循环稳定性好,50次循环后,仍能保持200 mAh/g。介绍了材料的制备方法,总结了过渡金属在材料中的作用机理,包括其在结构上的特性及其对材料的电化学性能的影响。分析了目前材料的研究热点。更多还原

【Abstract】 The initial discharge capacity of Li₂MnO₃ and LiMO₂（M=Ni,Co） layed solid-solution series cathode materials could reach about 220 mAh/g.Their cyclic stability was excellent,the discharge capacity still retained 200 mAh/g after 50 cycles.The preparation ways of the materials were introduced,the working mechanism of the transition metal in the material including their characteristics in the structure and their effects on the electrochemical properties was summarized and the research emphasis on the material was analyzed.更多还原