▎ 摘　　要

Sn-based chalcogenides are considered as one of the most promising anode materials for lithium-ion batteries (LIBs) because of their high capacities through both conversion and alloying reactions. However, the realization of full capacities of Sn-based chalcogenides is mainly hindered by the large volume variation and inferior reversibility of conversion reaction during cycling. In present work, a new ternary SnSMo-graphene nanosheets (SnS-Mo-GNs) composite is fabricated by a simple and scalable plasma milling method, in which SnS nanoparticles are tightly bonded with Mo and GNs. The Mo and GNs additives can effectively alleviate the large volume change of SnS upon cycling, which leads to a stable electrochemical framework. Moreover, they can significantly suppress the Sn agglomeration in lithiated SnS, which enables highly reversible conversion reaction during cycling. As anode for LIBs, the SnS-Mo-GNs composite exhibits a high initial coulombic efficiency of 86.9% (almost complete reversibility of SnS, similar to 97.3%), high cyclic coulombic efficiency after initial three cycles ( > 99.5%), and long lifespan (up to 600 cycles). Moreover, it also demonstrates superior electrochemical performance for sodium storage. Thus, this work demonstrates a potential anode for batteries application and provides a viable strategy to obtain highly reversible and stable anodes for lithium/sodium storage. (c) 2022 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.