A novel synthetic route for LiFePO_4/C cathode materials by addition of starch for lithium-ion batteries

作     者：Shao Hua Luo, Zi Long Tang, Jun Biao Lu, Zhong Tai Zhang State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China 

作者机构：State Key Laboratory of New Ceramics and Fine Processing Department of Materials Science and Engineering Tsinghua University Beijing 100084 China Graduate School at Shenzhen Tsinghua University Shenzhen 518055 China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2007年第18卷第2期

页      面：237-240页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 

基　　金：National Natural Science Foundation of China,NSFC: 50372003,50472005 Tsinghua University,THU: JC2003040 

主　　题：Lithium-ion batteries Cathode material Carbon coated LiFePO4 Spray-pelleting 

摘      要：LiFePO4/Carbon composite cathode material was prepared using starch as carbon source by spray-pelleting and subsequent pyrolysis in N2. The samples were characterized by XRD, SEM, Raman, and their electrochemical performance was investigated in terms of cycling behavior. There has a special micro-morphology via the process, which is favorable to electrochemical properties. The discharge capacity of the LiFePO4.C composite was 170 mAh g-1, equal to the theoretical specific capacity at 0.1 C rate. At 4 C current density, the specific capacity was about 80 mAh g-1, which can satisfy for transportation applications if having a more flat discharge flat.