▎ 摘　　要

Recently, ternary oxides have emerged as a new class of anode materials for lithium-ion battery due to their intrinsic advantages in accommodating volume expansion as well as improving the electrical conduction. This offers a new way to improve the cyclability of Ge-based anode which has been long plagued by capacity fading. Up to now, the studies on Ge-based ternary oxides anode are still scarce. Herein, we produced a novel Fe2GeO4 nanoparticles(NPs)/reduced graphene oxide (RGO) hybrid nanostructure and investigated its electrochemical performance in LIBs. During the cycling, a mixture in which Ge nanoparticles uniformly distributed in the matrix of Fe/Li2O formed. The Fe/Li2O matrix as well as the graphene can not only offer an elastic buffer but also provide a conductive medium for the whole anode. With the alleviated mechanical stress and the enhanced charge carrier transport, the hybrid anode exhibited a high reversible capacity of 980 mAh/g for 175 cycles. Remarkable rate performance was also recorded. Our study shows that Fe2GeO4 NPs/RGO nanostructure could be a suitable candidate for high capacity lithium-ion battery. (C) 2014 Elsevier Ltd. All rights reserved.