Co掺杂尖晶石型LiMn_2O_4正极材料研究进展  

Research progress in Co-doped spinel LiMn_2O_4 cathode material

作　　者：刘红雷 于月 白玮[1,2] 郭俊明 向明武[1,2] 段开娇 Liu Honglei;Yu Yue;Bai Wei;Guo Junming;Xiang Mingwu;Duan Kaijiao(School of Chemistry and Environment,Yunnan Minzu University,Kunming 650500,China;Key Laboratory of Green-chemistry Materials in University of Yunnan Province,Yunnan Minzu University,Kunming 650500,China)

机构地区：[1]云南民族大学化学与环境学院,云南昆明6500500 [2]云南民族大学云南省高校绿色化学材料重点实验室,云南昆明6500500

出　　处：《云南化工》2018年第12期6-10,共5页Yunnan Chemical Technology

基　　金：国家自然科学基金(51462036;U1602273)

摘　　要：尖晶石型LiMn_2O_4具有资源广、电压高、成本低、无污染、安全等优点,是具有良好发展前景的锂离子电池正极材料之一。由于在使用过程中Jahn-Teller效应、锰的溶解等引起其结构塌陷,制约了材料的应用,掺杂可以有效稳定LiMn_2O_4材料的结构、抑制容量衰减等,提高循环稳定性能。综述了Co掺杂尖晶石型LiMn_2O_4正极材料的研究进展,展望了Co掺杂尖晶石型LiMn_2O_4材料的发展前景。Spinel LiMn2O4 has been considered as a promising cathode material for lithium ion battery since its abundant resources high Voltage,low cost and no pollution.Due to the Jahn-Teller effect and the dissolution of manganese,resulting in structural damages,which limits the application of materials.Doping can effectively stabilize the structure of LiMn2O4 material,inhibit capacity attenuation,and improve circulating performance.The Co-doped spinel LiMn2O4 cathode materials were introduced,and the development prospects of Co-doped spinel LiMn2O4 materials were prospected.

关 键 词：锂离子电池 尖晶石型LIMN2O4 CO掺杂 正极材料 

分 类 号：O646.5[理学—物理化学]