Surface engineering and design strategy for surface-amorphized TiO 2 @graphene hybrids for high power Li-Ion battery electrodes

Authors

Tengfei Zhou, University of WollongongFollow
Yang Zheng, University of WollongongFollow
Hong Gao, University of WollongongFollow
Shudi Min, University of Wollongong
Sean Li, University of New South Wales
Hua-Kun Liu, University of WollongongFollow
Zaiping Guo, University of WollongongFollow

RIS ID

107001

Publication Details

Zhou, T., Zheng, Y., Gao, H., Min, S., Li, S., Liu, H. Kun. & Guo, Z. (2015). Surface engineering and design strategy for surface-amorphized TiO 2 @graphene hybrids for high power Li-Ion battery electrodes. Advanced Science, 2 (9), 1500027-1-1500027-8.

Abstract

Electrode materials with battery-like high capacity and capacitorlike rate performance are highly desirable, since they would signifi cantly advance next-generation energy storage technology. [ 1 ] TiO 2 has received increasing attention as an anode material for lithium-ion batteries (LIBs) due to its good reversible capacity and low volume expansion upon lithiation, as well as its low cost and safe lithiation potential. [ 2 ] The low lithium-ion mobility within the crystalline phase TiO 2 , however, together with its poor electrical conductivity, means that only a thin surface layer of the host material is available for Li intercalation at high rates. [ 3 ] These issues are still challenges that hinder the electrochemical performance of this material.