Royal Society of Chemistry, Journal of Materials Chemistry A: materials for energy and sustainability, 5(4), p. 1608-1611
DOI: 10.1039/c5ta08945j
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Conversely to the electrochemical inactivity claimed for MnNCN, we report here that transition-metal carbodiimides, MNCN (M = Cu, Zn, Mn, Fe, Co and Ni) are electrochemically active materials for electrochemical energy-storage systems. They exhibit high reversible capacities (200 - 800 mAh/g) for lithium and sodium ion batteries, stored by means of conversion reactions.