Facile CuFeO2 microcrystal synthesis for lithium ion battery anodes via microwave heating

초록

This paper reports a facile synthetic method to synthesize delafossite CuFeO2 for the use of lithium ion battery (LIB) anodes. We obtained 0.7-2.5 mu m CuFeO2 microcrystals with rhombohedral morphology by microwave heating, with a significantly reduced heating time compared to creating the crystals using solid-state reaction or hydrothermal methods. The resultant CuFeO2 electrode exhibits enhanced battery performance with high reversible capacity of 555 mAhg(-1) at 0.2 C after 200 cycles than the performances of the previous CuFeO(2-)based electrodes. Thus, CuFeO2 microcrystals prepared via the proposed method offer a practical alternative for lithium ion battery anodes.

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