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

Authors

Shaowei Zheng, East China University of Science and Technology
Yunlong Xu, East China University of Science and Technology
Chongjun Zhao, East China University of Science and Technology
Hua-Kun Liu, University of WollongongFollow
Xiuzhen Qian, East China University of Science and Technology
Jinghe Wang, Shanghai Nanotechnology Promotion Center

RIS ID

52797

Publication Details

Zheng, S., Xu, Y., Zhao, C., Liu, H., Qian, X. & Wang, J. (2012). Synthesis of nano-sized Li4Ti5O12/C composite anode material with excellent high-rate performance. Materials Letters, 68 32-35.

Abstract

"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."