An Fe2O3/Mn2O3 Nanocomposite Derived from a Metal-Organic Framework as an Anode Material for Lithium-ion Batteries

摘要

A facile and efficient coprecipitation was used to synthesize metal-organic framework (MOF), which was used as the precursor to prepare Fe2O3/Mn2O3 nanocomposite as anode material for lithium-ion batteries (LIBs). Fe2O3/Mn2O3 nanocomposite (synthesized by terephthalic acid) proved to show superior electrochemical performance compared to the single component, with a capacity of 1016 mA h g(-1) after 240 cycles at 0.5 A g(-1), capacity retention reached 114 %. This can be attributed to the uniform nanostructure brought by the MOF precursor and the stepwise volume change process of the two metal oxides, which leads to a higher electrical conductivity with a more stable structure. Meanwhile, this novel method for the synthesis of heterogeneous structural materials could open the way for the preparation of other high-performance hybrid materials in LIBs.

关键词