Nanocomposite of TiO2 nanoparticles-reduced graphene oxide with high-rate performance for Li-ion battery - Details

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Abstract：

A　simple　and　effective　method　is　developed　to　synthesize　the　nanocomposites　of　anatase　TiO2　nanoparticles　deposited　on　the　reduced　graphene　oxide　(TiO2-RGO)　sheets　as　anode　materials　for　Li-ion　battery　applications.　Structure　analyses　demonstrated　that　anatase　TiO2　nanoparticles　were　well　dispersed　onto　the　reduced　graphene　oxide　nanosheets　with　chemical　bonds.　These　TiO2-RGO　nanocomposites　were　electrochemically　investigated　in　the　cointype　cells　versus　metallic　lithium,　and　the　lithium　storage　performance　of　these　nanocomposites　showed　the　enhanced　highrate　capabilities　and　good　cycling　stability.　These　improved　electrochemical　performance　can　be　attributed　mainly　to　efficient　dispersion　of　TiO2　nanocrystals　on　the　surface　of　conductive　RGO　sheets,　which　makes　these　TiO2-RGO　nanocomposites　practical　for　high-rate　Li-ion　battery　applications.　©The　Electrochemical　Society.

Keyword：

Lithium-ion batteries Graphene Oxide minerals Reduced Graphene Oxide Energy storage Storage (materials) Anodes Titanium dioxide TiO2 nanoparticles Nanoparticles Synthesis (chemical) Chemical analysis Ions Bond strength (chemical)

Author Community：

[ 1 ] [Sun, Xiangcheng]Department of Electrical and Computer Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Canada
[ 2 ] [Zhang, Yuefei]Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing, China
[ 3 ] [Gu, Lin]Institute of Physics, Chinese Academy of Sciences, Beijing, China
[ 4 ] [Hu, Lilei]Department of Electrical and Computer Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Canada
[ 5 ] [Feng, Kun]Department of Chemical Engineering, University of Waterloo, Waterloo, Canada
[ 6 ] [Chen, Zhongwei]Department of Chemical Engineering, University of Waterloo, Waterloo, Canada
[ 7 ] [Cui, Bo]Department of Electrical and Computer Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Canada