锂离子电池新型阴极材料Li_2FeSiO_4的研究进展  

Research Advance on A New Generation of Polyanionic-type Li_2FeSiO_4 Cathode Material for Li-ion Battery

作　　者：范成杰[1,2] 左晓希[1,2] 李奇[1,2] 焦奇方[1,2] 南俊民[1,2] 

机构地区：[1]华南师范大学化学与环境学院,广州510006 [2]华南师范大学广东省高等学校电化学储能与发电技术重点实验室,广州510006

出　　处：《材料导报》2012年第3期149-153,共5页Materials Reports

基　　金：国家自然科学青年基金(21003054);广东省产学研项目(2009B090300389)

摘　　要：聚阴离子型材料Li2FeSiO4因具有价格低、环境友好、循环稳定、安全等优点,被视为很有应用潜力的新一代锂离子电池用阴极材料。综述了Li2FeSiO4阴极材料的最新研究进展,包括材料的结构特征、锂离子脱嵌机理、合成方法和电化学性能等,同时综述了Li2FeSiO4阴极材料的改性研究进展,并展望了材料在性能提高及应用等方面的发展趋势。The polyanionic-type Li2FeSiO4 is expected to be a potential cathode material for lithium ion batteries due to its some excellent characteristics such as low cost, friendly environment, satisfying cyclic stability and safety. The recent development of Li-Fe-Si-O system, including its structure characteristics, extraction/insertion mechanism of lithium ions, synthesis methods and electrochemical performances is reviewed. Its modification research is also reviewed. In addition, the prospect of Li2FeSiO4 in the performace and application is also discussed.

关 键 词：LI2FESIO4 结构特征 脱嵌机理 合成方法 电化学性能 

分 类 号：TM912[电气工程—电力电子与电力传动]