Synthesis of cathode material LiMn2O4 for lithium-ion batteries by high-energy ball milling
来源期刊：中国有色金属学报(英文版)2000年第6期
论文作者：胡国荣 彭忠东 杨建红 周贵海 刘业翔
文章页码：817 - 819
Key words：lithium-ion batteries; cathode materials; high-energy ball milling
Abstract: Using electrolytic manganese dioxide and Li2CO3 as starting materials, the precursor of LiMn2O4 as cathode materials for lithium-ion batteries was obtained by high-energy ball milling. The LiMn2O4 powder was synthesized by calcinating the as-milling powder at 750℃for 24 h. X-ray diffraction, SEM, cyclic voltammograms and charge-discharge were carried out to investigate the property of LiMn2O4 cathode materials. Results show that the synthesized material, which is of standard spinel structure, possesses high reversibility of electrochemistry. The capacity in EC-DMC(1∶1)+1 mol/L LiPF6electrolyte during first discharge is determined to be 125 mA·h/g.
