期刊
ELECTROCHIMICA ACTA
卷 253, 期 -, 页码 396-402出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2017.09.072
关键词
Lithium ion battery; Ti2Nb10O29; Anode material; Electrochemical property
资金
- National Natural Science Foundation of China [U1404505]
- Program for Innovative Talent in University of Henan Province [16HASTIT010]
- Henan Province Project Education Fund [14A150047, 15A150019]
In lithium ion batteries anode material is very crucial. Exploring the high-performance anode materials remains a great challenge. Here, Ti2Nb10O29/Ag composite was obtained. Electrochemical measurements demonstrate that Ti2Nb10O29/Ag composite shows good electrochemical performance than pure Ti2Nb10O29, mostly due to enhanced electronic conductivity after Ag-coating. The specific capacities of Ti2Nb10O29/Ag composite can be as high as 253 and 173 mAh g(-1) at 1 and 10C, respectively, and the specific capacity is 132 mAh g(-1) at 20C. Moreover, the Ti2Nb10O29/Ag composite exhibited excellent cyclic stability, even after 500 cycles, its specific capacity at 10C still stabilized at a large value of 142 mAh g(-1), which was in sharp contrast to the corresponding values of pure Ti2Nb10O29 (68 mAh g(-1)). The high electrochemical performance demonstrated that Ti2Nb10O29/Ag composite is highly promising anode materials for Li-ion batteries. (C) 2017 Published by Elsevier Ltd.
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