水热法合成CuFe_2O_4锂电池阳极材料及性能研究  

Preparation of CuFe_2O_4 Materials by the Hydrothermal Method and Its Electrochemical Characteristic Researches as Anode Material for Lithium ion Battery

作　　者：华丽[1,2] 何亚如 

机构地区：[1]湖北第二师范学院化学与生命科学学院,武汉430205 [2]华中科技大学材料科学与工程学院,武汉430074

出　　处：《湖北第二师范学院学报》2015年第8期1-4,共4页Journal of Hubei University of Education

基　　金：国家自然科学基金面上资助项目(51171068);湖北省高等学校优秀中青年科技创新团队建设计划项目(T201225);湖北省教育科学"十二五"规划课题(2011B232);<植物抗癌活性物质提纯与应用>湖北省重点实验室项目;湖北第二师范学院优秀科研教师团队建设计划项目(2012K203);湖北第二师范学院化学重点学科建设计划项目(2013XZXK05);湖北省教育厅教学研究项目(2014395)

摘　　要：采用水热法合成CuFe2O4材料并对其作为锂电池阳极材料电化学性能进行研究。SEM结果显示,该材料呈微米片状结构,颗粒均匀;XRD分析显示,晶面[220]、[311]、[400]、[422]、[511]、[440]均与立方尖晶石结构的CuFe2O4的标准谱图完全一致,说明获得的材料为准晶型尖晶石结构。对CuFe2O4进行恒电流充放电性能测试,结果显示,第1次充放电比容量分别为484.2mAh·g-1和512.5mAh·g-1,第5次充放电比容量分别为357.1mAh·g-1和373.5mAh·g-1,第10,30,50,70次充放电比容量分别为294mAh·g-1和305.4mAh·g-1,274mAh·g-1和282.2mAh·g-1,260.3mAh·g-1和269.2mAh·g-1,228.7mAh·g-1和233.3mAh·g-1。Cu Fe2O4 was prepared by the hydrothermal method,and its the electrochemical characteristics were investigated. SEM test results showed that the material was micrometer sheet structure with good distribution.XRD analysis showed that the crystals with crystal surface of [220],[311],[400],[422],[511],[440]were identical to the cube standard spinel structure of Cu Fe2O4 spectra,indicating the the obtained product has a standard spinel crystal. The charge and discharge curves were detected. The results showed that the first charge and discharge capacities were 484. 2 m Ah·g- 1and 512. 5 m Ah·g- 1,357. 1 m Ah·g- 1and 373. 5 m Ah·g- 1for the 5 th cycle. 294 m Ah·g- 1and 305. 4 m Ah·g- 1,274 m Ah·g- 1and 282. 2 m Ah·g- 1,260. 3 m Ah·g- 1and 269. 2 m Ah · g- 1,228. 7 m Ah · g- 1and 233. 3 m Ah · g- 1for the 10 th,30 th,50 th,70 th cycle,respectively.

关 键 词：铁酸铜 水热法 锂离子电池 电化学性能 

分 类 号：TM201[一般工业技术—材料科学与工程]