Preparation and Characterization of Spherical LiMn2 04 Synthesized by Solid State Method

摘要：

　　Spherical LiMa2 04 cathode material for lithium ion battery was synthesized from Al doped chemical coprecipitated manganese oxide (CMO) and lithium carbonate by solid state meth od.To compare the difference, the flake-type LiMn2 O4 were prepared from electrolytic manganese dioxide (EMD), aluminum hydroxide and lithium carbonate.The samples were characterized by X ray diffraction, scanning electron microscopy and fabricated into 053048-type prismatic battery to in vestigate their physical and electrochemical proper ties.The results show that no impurities exist in the products.The powder from CMO displays good sphericity, higher tap density, and better electro chemical properties whose capacity retention is 92 % after 300 cycles at room temperature (23 ℃) and 87.5 % after 100 cycles at 60 ℃.

关键词： LiMn2O4 chemical coprecipitated manganese oxide cathode material

作者: Da-liang LIU Li-cheng Du Ya-fei LIU Yan-bin CHEN

作者单位: Beijing General Research Institute of Mining and Metallurgy,Beijing 100160 ;Beijing Easpring Material Technology Co.,Ltd,Beijing 100160

会议类型: 国际会议

会议名称: The 12th China-Russia Symposium on Advanced Materials and Technologies(第十二届中俄双边新材料新工艺国际会议)

会议地点: 昆明

会议语种:英文

页码: 156-159

在线出版日期: 2013-11-19（万方平台首次上网日期，不代表论文的发表时间）