title: Hierarchical Porous Intercalation-Type V2O3as High-Performance Anode Materials for Li-Ion Batteries.
abstract: As intercalation-type anode materials for Li-ion batteries (LIBs), the commercially used graphite and Li4Ti5O12exhibit good cycling and rate properties, but their theoretical specific capacities are too low to meet the ever-growing demands of high-energy applications such as electric vehicles. Therefore, the development of new intercalation-type anode materials with larger capacity is very desirable. Herein, we design and synthesize novel 3 D hierarchical porous V2O3@C micro/nanostructures consisting of crumpled nanosheets, through self-reduction under annealing from the structurally similar VO2(B)@C precursors without the addition of any other reducing reagent or gas. Excitingly, it is found for the first time through ex situ XRD technology that V2O3is a new, promising intercalation-type anode material for LIBs with a high capacity. V2O3@C micro/nanostructures can deliver a large capacity of 732 mAh g-1without capacity loss at 100 mA g-1even after 136 cycles, as well as exhibiting excellent cycling and rate performances. The application of V2O3for Na-ion batteries (NIBs) is elaborated for the first time, and excitingly, it is found that V2O3@C micro/nanostructures may be promising anode materials for NIBs.
authors.affiliation: State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P. R. China.
authors.forename: Pengcheng
authors.identifier: http://orcid.org/0000-0002-9530-9267
authors.initials: P
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P. R. China.
authors.forename: Kongjun
authors.identifier: http://orcid.org/0000-0003-0804-8044
authors.initials: K
authors.lastname: Zhu
authors.affiliation: State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P. R. China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Xu
authors.affiliation: State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P. R. China.
authors.forename: Kan
authors.initials: K
authors.lastname: Bian
authors.affiliation: State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P. R. China.
authors.forename: Jing
authors.initials: J
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P. R. China.
authors.forename: Guo'an
authors.initials: G
authors.lastname: Tai
authors.affiliation: School of Materials Science and Engineering, Shanghai University, 99 Shangda, Shanghai, 200444, P. R. China.
authors.forename: Yanfeng
authors.initials: Y
authors.lastname: Gao
authors.affiliation: School of Materials Science and Engineering, Shanghai University, 99 Shangda, Shanghai, 200444, P. R. China.
authors.forename: Hongjie
authors.initials: H
authors.lastname: Luo
authors.affiliation: Department of Mechanical Engineering, National University of Singapore, Singapore, 117575, Singapore.
authors.forename: Li
authors.initials: L
authors.lastname: Lu
authors.affiliation: State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P. R. China.
authors.forename: Jinsong
authors.initials: J
authors.lastname: Liu
keywords: electrochemistry; hierarchical micro/nanostructures; intercalation-type anode material; lithium-ion batteries; reaction mechanisms; vanadium oxide