文献类型：期刊文献

英文题名：Synthesis of nano-sized Li₄Ti₅O₁₂/C composite anode material with excellent high-rate performance

作者：Zheng, Shaowei[1];Xu, Yunlong[1];Zhao, Chongjun[1];Liu, Huakun[2];Qian, Xiuzhen[1];Wang, Jinghe[3]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[2]Univ Wollongong, Inst Superconducting & Elect Mat, Wollongong, NSW 2522, Australia;[3]Shanghai Nanotechnol Promot Ctr, Shanghai 200237, Peoples R China

年份：2012

卷号：68

起止页码：32

外文期刊名：MATERIALS LETTERS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000300480600010)】；

基金：The work was partially supported by Shanghai Nanotechnology Promotion Center and Shanghai International Science and Technology Cooperation Foundation (08230705600).

语种：英文

外文关键词：Lithium ion battery; Nanoparticles; Lithium citrate; High-rate performance; Metals and alloys; Li4Ti5O12/C

摘要：Li4Ti5O12/C composite anode material was synthesized via solid-state reaction using lithium citrate as lithium source and carbon source. The formation of carbon and its influence on the particle size, morphology and electrochemical properties of the Li4Ti5O12/C composite were investigated in this paper. The results showed that the particles of Li4Ti5O12/C were uniformly distributed with the average particle size of 70 nm and were highly crystalline. The as-prepared sample exhibited high discharge specific capacity and excellent high-rate capability. At 0.2 C, the initial discharge capacity was 176.2 mAh/g. Even at 20 C, the initial discharge capacity could reach 121.1 mAh/g, which retained 106.1 mAh/g after 100 cycles. (C) 2011 Elsevier B.V. All rights reserved.