文献类型：期刊文献

英文题名：Enabling a High Performance of Mesoporous α-Fe2O3 Anodes by Building a Conformal Coating of Cyclized-PAN Network

作者：Wang, Di[1];Dong, Hui[1];Zhang, Huang[2];Zhang, Yang[1];Xu, Yunlong[1];Zhao, Chongjun[1];Sun, Yunong[1];Zhou, Nan[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[2]Katholieke Univ Leuven, Dept Mat Engn MTM, Kasteelpk Arenberg 44, B-3001 Leuven, Belgium

年份：2016

卷号：8

期号：30

起止页码：19524

外文期刊名：ACS APPLIED MATERIALS & INTERFACES

收录：;EI(收录号：20163202701862);WOS:【SCI-EXPANDED(收录号:WOS:000380968300039)】；

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

语种：英文

外文关键词：alpha-Fe2O3; cyclized-polyacrylonitrile; mesoporous; lithium-ion batteries; anode materials

摘要：The mesoporous alpha-Fe2O3/cyclized-polyacrylonitrile (C-PAN) composite was synthesized by a rapid and facile two-step method. The electrode was fabricated without conductive carbon addictive and employed as anode for lithium-ion batteries. Results demonstrate that building a conformal coating of a C-PAN network can provide a strong adhesion with active materials and contribute excellent electronic conductivity to the electrode, which can relieve the huge volume changes during a lithiation/delithiation process and accelerate the charge transfer rate. The material exhibited high reversible capacity of ca. 996 mAh g(-1) after 100 cycles at 0.2C, 773 mAh g(-1) at 1C and 655 mAh g(-1) at 2C, respectively, showing well enhanced cycling performance and superior rate capacity, and also exhibiting significantly improved power density and energy density compared to the traditional graphite materials. Our results provide a facile and efficient way to enhance the performance of alpha-Fe2O3 anode material, which also can be applied for other oxide anode materials.