文献类型：期刊文献

英文题名：Li4Ti5O12/graphene nanostructure for lithium storage with high-rate performance

作者：Ri, Song Gyun[1];Zhan, Liang[2];Wang, Yun[2];Zhou, Lihui[1];Hu, Jun[1];Liu, Honglai[1]

机构：[1]E China Univ Sci & Technol, Dept Chem, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Dept Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2013

卷号：109

起止页码：389

外文期刊名：ELECTROCHIMICA ACTA

收录：;EI(收录号：20133916791420);WOS:【SCI-EXPANDED(收录号:WOS:000328006300055)】；

基金：This work was supported by the National Natural Science Foundation of China (No. 21176066 and 51002051), the 111 Project of Ministry of Education of China (No. B08021) and the Fundamental Research Funds for the Central Universities of China.

语种：英文

外文关键词：Lithium titanate; Graphene; Ionic liquid; Anode materials; Lithium ion battery

摘要：Nano-crystalline Li4Ti5O12 with an average size of 18 nm was in situ grown on graphene sheets using ionic liquid of C12H23ClN2 [Omirn]Cl as the exfoliated agent. Such unique nanostructure provides a high electrode/electrolyte area for the electron transport and the nanosized Li4Ti5O12 leads to a short path for the lithium ion transfer. When used as an anode material for lithium-ion battery, the Li4Ti5O12/graphene nanostructure exhibits excellent reversibility (159 mAh g(-1) at 0.5 C after 100 cycles) and high-rate performance (162 mAhg(-1) at 0.2 C, 148.5 mAhg(-1) at 20 C). Crown Copyright (C) 2013 Published by Elsevier Ltd. All rights reserved.