Electrochemical performances of the isocubanite CuFe2S3 tested as electrode material for Li-ion batteries have been investigated. A first discharge capacity of 860 mA h g−1 shows a conversion process leading to Li2S, copper and iron nanoparticles. Interestingly, a reversible capacity of 560 mA h g−1 at 1.5 V is demonstrated with good cyclability up to 30 cycles.
E. Anger, A. Maignan, T. Barbier and V. Pralong, RSC Adv., 2018, 8, 26691 DOI: 10.1039/C8RA03840F
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