锂离子电池正极材料LiMn2O4的合成与晶体结构
리리자전지정겁재료LiMn2O4적합성여정체결구
Synthesis and Crystal Structure of LiMn2O4 Cathode Material for Li-ion Battery
  • 万方数据
    无机化学学报 무궤화학학보
    JOURNAL OF INORGANIC CHEMISTRY
    2005年 2期 232-236 ,共5页

    阮艳莉%唐致远%韩恩山%冯季军

    원염리%당치원%한은산%풍계군

    锂离子电池%正极材料%LiMn2O4%晶体结构 鋰離子電池%正極材料%LiMn2O4%晶體結構
    리리자전지%정겁재료%LiMn2O4%정체결구
    Li-ion battery%cathode material%LiMn2O4%crystal structure


    Spinel LiMn2O4 powders were prepared using two-step synthesis method consisting of solid-state reaction method and citrate modified sol-gel method. The effects of the calcination temperature and the Li/Mn ratio of raw materials were studied on the physicochemical and electrochemical properties of the spinel LiMn2O4 powders,such as crystallinity, lattice constant and density. The title compound was characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Polycrystalline LiMn2O4 powers calcined at 750℃ were found to be composed of very uniformly-sized microcrystal with an average particle size of 300 nm. The improvement in electrochemical properties was mainly attributed to the process of re-grinding by absolute alcohol.
    원문보기 원문다운로드 사이트로이동
저자의 최근 논문