Carbon and graphene double protection strategy to improve the SnO(x) electrode performance anodes for lithium-ion batteries.

TitleCarbon and graphene double protection strategy to improve the SnO(x) electrode performance anodes for lithium-ion batteries.
Publication TypeJournal Article
Year of Publication2013
AuthorsZhu J, Lei D, Zhang G, Li Q, Lu B, Wang T
JournalNanoscale
Volume5
Issue12
Pagination5499-505
Date Published2013 Jun 21
Abstract

SnOx is a promising high-capacity anode material for lithium-ion batteries (LIBs), but it usually exhibits poor cycling stability because of its huge volume variation during the lithium uptake and release process. In this paper, SnOx carbon nanofibers (SnOx@CNFs) are firstly obtained in the form of a nonwoven mat by electrospinning followed by calcination in a 0.02 Mpa environment at 500 °C. Then we use a simple mixing method for the synthesis of SnOx@CNF@graphene (SnOx@C@G) nanocomposite. By this technique, the SnOx@CNFs can be homogeneously deposited in graphene nanosheets (GNSs). The highly scattered SnOx@C@G composite exhibits enhanced electrochemical performance as anode material for LIBs. The double protection strategy to improve the electrode performance through producing SnOx@C@G composites is versatile. In addition, the double protection strategy can be extended to the fabrication of various types of composites between metal oxides and graphene nanomaterials, possessing promising applications in catalysis, sensing, supercapacitors and fuel cells.

DOI10.7497/j.issn.2095-3941.2013.02.008
Alternate JournalNanoscale