title: Free-standing Fe2O3 nanomembranes enabling ultra-long cycling life and high rate capability for Li-ion batteries.
abstract: With Fe2O3 as a proof-of-concept, free-standing nanomembrane structure is demonstrated to be highly advantageous to improve the performance of Li-ion batteries. The Fe2O3 nanomembrane electrodes exhibit ultra-long cycling life at high current rates with satisfactory capacity (808 mAh g(-1) after 1000 cycles at 2 C and 530 mAh g(-1) after 3000 cycles at 6 C) as well as repeatable high rate capability up to 50 C. The excellent performance benefits particularly from the unique structural advantages of the nanomembranes. The mechanical feature can buffer the strain of lithiation/delithiation to postpone the pulverization. The two-dimensional transport pathways in between the nanomembranes can promote the pseudo-capacitive type storage. The parallel-laid nanomembranes, which are coated by polymeric gel-like film and SEI layer with the electrolyte in between layers, electrochemically behave like numerous "mini-capacitors" to provide the pseudo-capacitance thus maintain the capacity at high rate.
authors.affiliation: Institute for Integrative Nanosciences, IFW-Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany.
authors.forename: Xianghong
authors.initials: X
authors.lastname: Liu
authors.affiliation: 1] Institute for Integrative Nanosciences, IFW-Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany [2] Material Systems for Nanoelectronics, Chemnitz University of Technology, Reichenhainerstrasse 70, 09107 Chemnitz, Germany.
authors.forename: Wenping
authors.initials: W
authors.lastname: Si
authors.affiliation: School of Materials Science and Engineering, University of Jinan, 250022 Jinan, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Zhang
authors.affiliation: 1] Institute for Integrative Nanosciences, IFW-Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany [2] Material Systems for Nanoelectronics, Chemnitz University of Technology, Reichenhainerstrasse 70, 09107 Chemnitz, Germany.
authors.forename: Xiaolei
authors.initials: X
authors.lastname: Sun
authors.affiliation: 1] Institute for Integrative Nanosciences, IFW-Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany [2] Material Systems for Nanoelectronics, Chemnitz University of Technology, Reichenhainerstrasse 70, 09107 Chemnitz, Germany.
authors.forename: Junwen
authors.initials: J
authors.lastname: Deng
authors.affiliation: Institute for Integrative Nanosciences, IFW-Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany.
authors.forename: Stefan
authors.initials: S
authors.lastname: Baunack
authors.affiliation: Institute for Complex Materials, IFW-Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany.
authors.forename: Steffen
authors.initials: S
authors.lastname: Oswald
authors.affiliation: International Iberian Nanotechnology Laboratory (INL), Avenida Mestre José Veiga s/n, 4715-330, Braga, Portugal.
authors.forename: Lifeng
authors.initials: L
authors.lastname: Liu
authors.affiliation: 1] Institute for Integrative Nanosciences, IFW-Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany [2] College of Physics, Optoelectronics and Energy &Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, 215006 Suzhou, China.
authors.forename: Chenglin
authors.initials: C
authors.lastname: Yan
authors.affiliation: 1] Institute for Integrative Nanosciences, IFW-Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany [2] Material Systems for Nanoelectronics, Chemnitz University of Technology, Reichenhainerstrasse 70, 09107 Chemnitz, Germany.
authors.forename: Oliver G
authors.initials: OG
authors.lastname: Schmidt