Surface Engineering and Design Strategy for Surface-Amorphized TiO2@Graphene Hybrids for High Power Li-Ion Battery Electrodes

Tengfei Zhou; Yang Zheng; Hong Gao; Shudi Min; Sean Li; Hua Kun Liu; Zaiping Guo

doi:10.1002/advs.201500027

Surface Engineering and Design Strategy for Surface-Amorphized TiO₂@Graphene Hybrids for High Power Li-Ion Battery Electrodes

Adv Sci (Weinh). 2015 May 26;2(9):1500027. doi: 10.1002/advs.201500027. eCollection 2015 Sep.

Authors

Tengfei Zhou¹, Yang Zheng¹, Hong Gao¹, Shudi Min¹, Sean Li², Hua Kun Liu¹, Zaiping Guo¹

Affiliations

¹ Institute for Superconducting and Electronic Materials Australian Institute for Innovative Materials (AIIM) School of Mechanical, Materials and Mechatronics Engineering University of Wollongong North Wollongong NSW 2500 Australia.
² School of Materials Science and Engineering University of New South Wales NSW 2052 Australia.

Abstract

Surface amorphization provides unprecedented opportunities for altering and tuning material properties. Surface-amorphized TiO₂@graphene synthesized using a designed low temperature-phase transformation technique exhibits significantly improved rate capability compared to well-crystallized TiO₂@graphene and bare TiO₂ electrodes. These improvements facilitates lithium-ion transport in both insertion and extraction processes and enhance electrolyte absorption capability.

Keywords: energy storage; lithium‐ion batteries; low‐temperature phase transformations; surface engineering; titanium dioxide.