摘要
Using electrolytic manganese dioxide and Li 2CO 3 as starting materials, the precursor of LiMn 2O 4 as cathode materials for lithium ion batteries was obtained by high energy ball milling. The LiMn 2O 4 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 LiMn 2O 4 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 LiPF 6 electrolyte during first discharge is determined to be 125 mA·h/g.[
Using electrolytic manganese dioxide and Li 2CO 3 as starting materials, the precursor of LiMn 2O 4 as cathode materials for lithium ion batteries was obtained by high energy ball milling. The LiMn 2O 4 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 LiMn 2O 4 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 LiPF 6 electrolyte during first discharge is determined to be 125 mA·h/g.[
出处
《中国有色金属学会会刊：英文版》
CSCD
2000年第6期817-819,共3页
Transactions of Nonferrous Metals Society of China
基金
Project supported by the State Key Laboratory for Powder Metallurgy of CSUT
