Nanocomposite of TiO2 Nanoparticles-Reduced Graphene Oxide with High-Rate Performance for Li-Ion Battery. (10th February 2015)

• Record Type: Journal Article
• Authors: Sun, Xiangcheng; Zhang, Yuefei; Gu, Lin; Hu, Lilei; Feng, Kun; Chen, Zhongwei; Cui, Bo
• Is Part Of: ECS transactions. Volume 64:Number 23(2014)
• Page Start: 11
• Page End: 17
• Publication Date: 2015-02-10
• Subjects: Electrochemistry -- Periodicals; Electrochemistry; Periodicals; Electronic journals; Electronic journal; 541.37
• DOI: 10.1149/06423.0011ecst
• Languages: English
• ISSNs: 1938-5862

Abstract

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 coin-type cells versus metallic lithium, and the lithium storage performance of these nanocomposites showed the enhanced high-rate 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.