CuFe2S3 as electrode material for Li-ion batteries

摘要

Electrochemical performances of the isocubanite CuFe _(2) S _(3) 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 Li _(2) S, 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.