文献类型：期刊文献

英文题名：Template-free synthesis of biomass-derived carbon coated Li4Ti5O12 microspheres as high performance anodes for lithium-ion batteries

作者：Li, Keqiang[1];Zhang, Yang[1];Sun, Yunong[1];Xu, Yunlong[1];Zhang, Huang[2,3];Ye, Pan[1];Zheng, Mengdan[1];Zhou, Nan[1];Wang, Di[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, 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：2018

卷号：459

起止页码：572

外文期刊名：APPLIED SURFACE SCIENCE

收录：;EI(收录号：20183205676112);WOS:【SCI-EXPANDED(收录号:WOS:000444600300072)】；

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). H. Z gratefully acknowledged financial support from China Scholarship Council.

语种：英文

外文关键词：Li4Ti5O12; Biomass; Microsphere; Anode; Lithium-ion batteries

摘要：The hierarchical Li4Ti5O12/C microspheres based on the waste biomass of phoenix tree leaf are synthesized as anodes for lithium-ion batteries. The phoenix tree leaf derived activated carbon (CPTL) are uniformly coated on the surface of acanthosphere-like Li4Ti5O12 (LTO) microspheres using a facial hydrothermal method to fabricate hierarchical porous structures with conducive interconnected 3D networks. Results show that the LTO-CPTL composite with 3 wt% carbon delivers the best electrochemical performance at both ambient and low temperatures with an initial discharge capacity of 212 mAh g(-1) at 1 C and capacity retention of 95% after 500 cycles. The present study demonstrates a facile and cost-efficient way to fabricate high performance electrode materials for batteries.