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Synthesis of α-Fe2O3/carbon nanocomposites as high capacity electrodes for next generation lithium ion batteries: a review
Abstract
Graphite, widely employed as an anode in LIBs, is limited by a theoretical capacity of 372 mA h g−1. Progress in nanoscience and energy storage systems has brought attention to nano-sized α-Fe2O3 as next-generation anodes, providing capacities up to three times higher than graphite. However, mass-market application remains challenging due to a long-term cycling capacity loss, the intrinsic low conductivity and safety concerns regarding the “nano-nature” of α-Fe2O3 nanoparticles. Promising solution concepts include the embedding of α-Fe2O3 into conductive sp2 derived carbons with volume-buffer capabilities. This review article presents the current status of α-Fe2O3/carbon nanocomposites with superior electrochemical performance based on 2D graphene, 1D carbon nanofibers and 1D carbon nanotubes.
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