正极材料聚阴离子型硅酸亚铁锂的研究进展  

Research progress in cathode material poly-anionic lithium iron silicate

作　　者：张峥[1] 马慎思[1] 寇丹[1] 刘兴泉[1] 

机构地区：[1]电子科技大学微电子与固体电子学院,新能源材料与集成能源器件研发中心,电子薄膜与集成器件国家重点实验室,成都610054

出　　处：《电池》2013年第6期357-360,共4页Battery Bimonthly

基　　金：国家自然科学基金(21071026);电子科技大学杰出人才引进项目(08JC00303)

摘　　要：介绍了硅酸亚铁锂(Li2FeSiO4)的结构与充放电机理;综述了Li2FeSiO4的合成方法,如高温固相法、溶胶-凝胶法、自蔓延燃烧法、微波法、熔融盐法、喷雾热解法和水热(溶剂热)法等,并比较了优缺点;探讨了改善该类正极材料电化学性能的途径(碳包覆和离子掺杂等);对发展趋势进行了展望。The structure and charge-discharge mechanism of lithium iron silicate （ Li2 FeSiO4 ） were introduced. The synthesis me- thods of Li2 FeSiO4 were summarized,such as high temperature solid state method, sol-gel method, self-propagating combustion me- thod, microwave method, molten salt method, spray pyrolysis method and hydrothermal （solvothermal） method, their advantages and disadvantages were compared. The ways to improve electrochemical performance of this kind of cathode material such as carbon coati＇ng and onic doping were discussed. An insight into the research trends was outlined.

关 键 词：锂离子电池 聚阴离子 正极材料 硅酸亚铁锂(Li2FeSiO4) 正硅酸盐 

分 类 号：TM912.9[电气工程—电力电子与电力传动]