title: Direct Superassemblies of Freestanding Metal-Carbon Frameworks Featuring Reversible Crystalline-Phase Transformation for Electrochemical Sodium Storage.
abstract: High-power sodium-ion batteries (SIBs) with long-term cycling attract increasing attention for large-scale energy storage. However, traditional SIBs toward practical applications still suffer from low rate capability and poor cycle induced by pulverization and amorphorization of anodes at high rate (over 5 C) during the fast ion insertion/extraction process. The present work demonstrates a robust strategy for a variety of (Sb-C, Bi-C, Sn-C, Ge-C, Sb-Bi-C) freestanding metal-carbon framework thin films via a space-confined superassembly (SCSA) strategy. The sodium-ion battery employing the Sb-C framework exhibits an unprecedented performance with a high specific capacity of 246 mAh g-1, long life cycle (5000 cycles), and superb capacity retention (almost 100%) at a high rate of 7.5 C (3.51A g-1). Further investigation indicates that the unique framework structure enables unusual reversible crystalline-phase transformation, guaranteeing the fast and long-cyclability sodium storage. This study may open an avenue to developing long-cycle-life and high-power SIBs for practical energy applications.
authors.affiliation: Department of Chemistry, Laboratory of Advanced Materials, Fudan University , Shanghai 200433, P. R. China.
authors.forename: Biao
authors.initials: B
authors.lastname: Kong
authors.affiliation: School of Chemical Science and Engineering, Tongji University , Siping Road 1239, Shanghai 200092, P. R. China.|Research Center for Translational Medicine & Key Laboratory of Arrhythmias of the Ministry of Education of China, East Hospital, Tongji University School of Medicine , No. 150 Jimo Road, Shanghai 200120, P. R. China.
authors.forename: Lianhai
authors.identifier: 0000-0001-5685-3721
authors.initials: L
authors.lastname: Zu
authors.affiliation: Research Center for Translational Medicine & Key Laboratory of Arrhythmias of the Ministry of Education of China, East Hospital, Tongji University School of Medicine , No. 150 Jimo Road, Shanghai 200120, P. R. China.|Graphene Research Centre, National University of Singapore , 6 Science Drive 2, Singapore 117546, Singapore.
authors.forename: Chengxin
authors.initials: C
authors.lastname: Peng
authors.affiliation: School of Chemical Science and Engineering, Tongji University , Siping Road 1239, Shanghai 200092, P. R. China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Department of Chemistry, Laboratory of Advanced Materials, Fudan University , Shanghai 200433, P. R. China.
authors.forename: Wei
authors.initials: W
authors.lastname: Zhang
authors.affiliation: Department of Anesthesiology, Division of Critical Care Medicine, Boston Children's Hospital, Harvard Medical School , 300 Longwood Avenue, Boston, Massachusetts 02115, United States.
authors.forename: Jing
authors.initials: J
authors.lastname: Tang
authors.affiliation: Department of Chemical Engineering, Monash University , Clayton, Victoria 3800, Australia.
authors.forename: Cordelia
authors.initials: C
authors.lastname: Selomulya
authors.affiliation: Clinical Pharmacy Laboratory, Huashan Hospital, Fudan University , Shanghai 200040, P. R. China.
authors.forename: Liudi
authors.initials: L
authors.lastname: Zhang
authors.affiliation: Department of Chemistry, Laboratory of Advanced Materials, Fudan University , Shanghai 200433, P. R. China.
authors.forename: Hanxing
authors.initials: H
authors.lastname: Chen
authors.affiliation: Department of Chemical Engineering, Monash University , Clayton, Victoria 3800, Australia.
authors.forename: Yang
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Department of Chemistry, Laboratory of Advanced Materials, Fudan University , Shanghai 200433, P. R. China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Department of Chemistry, Laboratory of Advanced Materials, Fudan University , Shanghai 200433, P. R. China.
authors.forename: Haili
authors.initials: H
authors.lastname: He
authors.affiliation: Department of Chemical Engineering, Monash University , Clayton, Victoria 3800, Australia.
authors.forename: Jing
authors.identifier: 0000-0001-9413-2650
authors.initials: J
authors.lastname: Wei
authors.affiliation: Department of Chemical Engineering, Monash University , Clayton, Victoria 3800, Australia.
authors.forename: Xiaocheng
authors.initials: X
authors.lastname: Lin
authors.affiliation: Department of Chemistry, Laboratory of Advanced Materials, Fudan University , Shanghai 200433, P. R. China.
authors.forename: Wei
authors.initials: W
authors.lastname: Luo
authors.affiliation: Department of Chemical Engineering, Monash University , Clayton, Victoria 3800, Australia.
authors.forename: Jianping
authors.identifier: 0000-0003-1495-270X
authors.initials: J
authors.lastname: Yang
authors.affiliation: Department of Chemistry, Laboratory of Advanced Materials, Fudan University , Shanghai 200433, P. R. China.
authors.forename: Zaiwang
authors.initials: Z
authors.lastname: Zhao
authors.affiliation: Department of Chemistry, Laboratory of Advanced Materials, Fudan University , Shanghai 200433, P. R. China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Liu
authors.affiliation: School of Chemical Science and Engineering, Tongji University , Siping Road 1239, Shanghai 200092, P. R. China.|Research Center for Translational Medicine & Key Laboratory of Arrhythmias of the Ministry of Education of China, East Hospital, Tongji University School of Medicine , No. 150 Jimo Road, Shanghai 200120, P. R. China.
authors.forename: Jinhu
authors.initials: J
authors.lastname: Yang
authors.affiliation: Department of Chemistry, Laboratory of Advanced Materials, Fudan University , Shanghai 200433, P. R. China.|Department of Chemical Engineering, Monash University , Clayton, Victoria 3800, Australia.
authors.forename: Dongyuan
authors.identifier: 0000-0001-8440-6902
authors.initials: D
authors.lastname: Zhao