Preparation and Electrochemical Performance of Ti2Nb10O29/Ag Composite as Anode Materials for Lithium Ion Batteries. (1st November 2017)

• Record Type: Journal Article
• Authors: Mao, Wutao; Liu, Kecheng; Guo, Ge; Liu, Guangyin; Bao, Keyan; Guo, Jiali; Hu, Min; Wang, Weibo; Li, Beibei; Zhang, Kailong; Qian, Yitai
• Is Part Of: Electrochimica acta. Volume 253(2017)
• Page Start: 396
• Page End: 402
• Publication Date: 2017-11-01
• Subjects: Lithium ion battery -- Ti2Nb10O29 -- Anode material -- Electrochemical property; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2017.09.072
• Languages: English
• ISSNs: 0013-4686

Abstract

Graphical abstract: Abstract: In lithium ion batteries anode material is very crucial. Exploring the high-performance anode materials remains a great challenge. Here, Ti2 Nb10 O29 /Ag composite was obtained. Electrochemical measurements demonstrate that Ti2 Nb10 O29 /Ag composite shows good electrochemical performance than pure Ti2 Nb10 O29, mostly due to enhanced electronic conductivity after Ag-coating. The specific capacities of Ti2 Nb10 O29 /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 Ti2 Nb10 O29 /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 Ti2 Nb10 O29 (68 mAh g −1 ). The high electrochemical performance demonstrated that Ti2 Nb10 O29 /Ag composite is highly promising anode materials for Li-ion batteries.