How does Molybdenum Disulfide Store Charge: A Minireview

Abstract MoS 2 has attracted tremendous attention as a promising electrode material for rechargeable alkali metal ion (Li + , Na + , K + ) batteries due to its high capacity and low cost. However, the practical application of MoS 2 for energy storage has not been achieved yet, which is restricted by its intrinsic charge‐storage behavior. Debates still exist in this field although great efforts have been made to reveal alkali metal ion (Li + , Na + , K + ) storage mechanism of MoS 2 . This Minireview aims to provide an analysis and summary of the related phase conversion, structure collapse, and loss of active material in a MoS 2 electrode during the intercalation/extraction process of alkali metal ions. Hence, the fundamental understanding about the charge storage in MoS 2 is of importance for the rational design of MoS 2 electrodes with excellent electrochemical performance.