title: Enabling a High Performance of Mesoporous α-Fe2O3 Anodes by Building a Conformal Coating of Cyclized-PAN Network.
abstract: The mesoporous α-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 α-Fe2O3 anode material, which also can be applied for other oxide anode materials.
authors.affiliation: School of Materials Science and Engineering, East China University of Science and Technology , Shanghai 200237, People's Republic of China.
authors.forename: Di
authors.initials: D
authors.lastname: Wang
authors.affiliation: School of Materials Science and Engineering, East China University of Science and Technology , Shanghai 200237, People's Republic of China.
authors.forename: Hui
authors.initials: H
authors.lastname: Dong
authors.affiliation: Department of Materials Engineering (MTM), KU Leuven , Kasteelpark Arenberg 44, B-3001 Leuven, Belgium.
authors.forename: Huang
authors.initials: H
authors.lastname: Zhang
authors.affiliation: School of Materials Science and Engineering, East China University of Science and Technology , Shanghai 200237, People's Republic of China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: School of Materials Science and Engineering, East China University of Science and Technology , Shanghai 200237, People's Republic of China.
authors.forename: Yunlong
authors.initials: Y
authors.lastname: Xu
authors.affiliation: School of Materials Science and Engineering, East China University of Science and Technology , Shanghai 200237, People's Republic of China.
authors.forename: Chongjun
authors.initials: C
authors.lastname: Zhao
authors.affiliation: School of Materials Science and Engineering, East China University of Science and Technology , Shanghai 200237, People's Republic of China.
authors.forename: Yunong
authors.initials: Y
authors.lastname: Sun
authors.affiliation: School of Materials Science and Engineering, East China University of Science and Technology , Shanghai 200237, People's Republic of China.
authors.forename: Nan
authors.initials: N
authors.lastname: Zhou
keywords: anode materials; cyclized-polyacrylonitrile; lithium-ion batteries; mesoporous; α-Fe2O3