尖晶石LiMn_2O_4的改性研究  

Study on Modification of Spinel LiMn_2O_4

作　　者：韩金铎[1] 金山[1] 景燕[1] 李武[1] 贾永忠[1] 

机构地区：[1]中国科学院盐湖研究所

出　　处：《无机化学学报》2005年第2期237-240,共4页Chinese Journal of Inorganic Chemistry

基　　金：中国科学院"西部之光"资助项目

摘　　要：Using water soluble organic compound as matrix, Carbon-coated LiMn2O4 was synthesized successfully. Co-doped LiMn2O4 was also synthesized. Physical and electrochemical performances were investigated by XRD, IR, SEM and electrochemical testing. The results showed that due to a better conductivity and stabilization of Co-doped LiMn2O4, the electrochemical performances of LiMn2O4 were improved. And Carbon-coated LiMn2O4 also showed a good property because of the reduction of Mn dissolution. Comparatively speaking, Carbon-coated LiMn2O4 showed a more stable electrochemical performance.Using water soluble organic compound as matrix, Carbon-coated LiMn2O4 was synthesized successfully. Co-doped LiMn2O4 was also synthesized. Physical and electrochemical performances were investigated by XRD, IR, SEM and electrochemical testing. The results showed that due to a better conductivity and stabilization of Co-doped LiMn2O4, the electrochemical performances of LiMn2O4 were improved. And Carbon-coated LiMn2O4 also showed a good property because of the reduction of Mn dissolution. Comparatively speaking, Carbon-coated LiMn2O4 showed a more stable electrochemical performance.

关 键 词：尖晶石LIMN2O4 XRD SEM IR 改性 研究 

分 类 号：O614[理学—无机化学] TM912[理学—化学]