title: Phosphorus Enhanced Intermolecular Interactions of SnO2and Graphene as an Ultrastable Lithium Battery Anode.
abstract: SnO2suffers from fast capacity fading in lithium-ion batteries due to large volume expansion as well as unstable solid electrolyte interphase. Herein, the design and synthesis of phosphorus bridging SnO2and graphene through covalent bonding are demonstrated to achieve a robust structure. In this unique structure, the phosphorus is able to covalently "bridge" graphene and tin oxide nanocrystal through PC and SnOP bonding, respectively, and act as a buffer layer to keep the structure stable during charging-discharging. As a result, when applied as a lithium battery anode, SnO2@P@GO shows very stable performance and retains 95% of 2nd capacity onward after 700 cycles. Such unique structural design opens up new avenues for the rational design of other high-capacity materials for lithium battery, and as a proof-of-concept, creates new opportunities in the synthesis of advanced functional materials for high-performance energy storage devices.
authors.affiliation: State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China.
authors.forename: Kangning
authors.initials: K
authors.lastname: Zhao
authors.affiliation: State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China.
authors.forename: Ruohan
authors.initials: R
authors.lastname: Yu
authors.affiliation: State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China.
authors.forename: Mengyu
authors.initials: M
authors.lastname: Yan
authors.affiliation: Deparment of Mechanical and Industrial Engineering, Louisiana State University, Baton Rouge, LA, 70830, USA.
authors.forename: Wangwang
authors.initials: W
authors.lastname: Xu
authors.affiliation: State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China.
authors.forename: Yifan
authors.initials: Y
authors.lastname: Dong
authors.affiliation: State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China.
authors.forename: Wenhao
authors.initials: W
authors.lastname: Ren
authors.affiliation: State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China.
authors.forename: Xu
authors.initials: X
authors.lastname: Xu
authors.affiliation: State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China.
authors.forename: Chunjuan
authors.initials: C
authors.lastname: Tang
authors.affiliation: State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China.|Department of Chemistry, University of California, Berkeley, CA, 94720, USA.
authors.forename: Liqiang
authors.initials: L
authors.lastname: Mai
keywords: SnO2; covalent bonding; graphene; lithium-ion battery; ultrastable anode