文献类型：期刊文献

英文题名：Li4Ti5O12/Ketjen Black with open conductive frameworks for high-performance lithium-ion batteries

作者：Zhang, Yang[1];Dong, Hui[1];Zhang, Huang[2,3];Liu, Yijun[1];Ji, Mandi[1];Xu, Yunlong[1];Wang, Qingqing[1];Luo, Lei[1]

机构：[1]E China Univ Sci & Technol, Shanghai Key Lab Adv Polymer Mat, Sch Mat Sci & Engn, Key Lab Ultrafine Mat,Minist Educ, Shanghai 200237, Peoples R China;[2]Helmholtz Inst Ulm, Helmholtzstr 11, D-89081 Ulm, Germany;[3]Karlsruhe Inst Technol, POB 3640, D-76021 Karlsruhe, Germany

年份：2016

卷号：201

起止页码：179

外文期刊名：ELECTROCHIMICA ACTA

收录：;EI(收录号：20161802331817);WOS:【SCI-EXPANDED(收录号:WOS:000375132500021)】；

基金：This work is supported by Shanghai Leading Academic Discipline Project (B502), Shanghai Nanotechnology Special Foundation (No. 11nm0500900) and Shanghai Key Laboratory Project (08DZ2230500).

语种：英文

外文关键词：lithium titanate; ketjen black; mesoporous carbon; rate capability; low temperature

摘要：The Li4Ti5O12/Ketjen Black composites are synthesized via a simple hydrothermal method. The materials are characterized by XRD, SEM, HR-TEM, EDS, galvanostatic charge/discharge test, CV and EIS. The results indicate that Li4Ti5O12 (LTO) particles grow both in the pores and on the surface of mesoporous Ketjen Black (KB) forming open conductive frameworks and the Ketjen Black works as host forthe growth of Li4Ti5O12 primary nanoparticles. The LTO/KB electrode is fabricated without extra carbon black conductive agents and exhibits excellent electrochemical performances, especially at low temperature. The improved performances can be attributed to the presence of mesoporous Ketjen Black conductive templates with high electronic conductivity and formed 3D frameworks beneficial to the lithium ion diffusion. (C) 2016 Elsevier Ltd. All rights reserved.