Synergy ascension of SnS/MoS₂ binary metal sulfides on initial coulombic efficiency and stable capacity for lithium storage.

ABSTRACT: Numerous efforts have been devoted to capability improvement and cycling stability in the past decades, and these performances have been significantly enhanced. Low initial coulombic efficiency is still a problem in the metal sulfide-based anode materials. This study developed a strategy to achieve high initial coulombic efficiency and superior capacity retention by interpenetrating binary metal sulfides of SnS and MoS₂ in a conductive carbon matrix. The synergy ascension of electrochemical performances for the metal sulfides is attributed to their mutual impeding effects on coarsening of metal grains and the capsule-shaped coating structure embedded in the carbon sheet architecture. The SnS/MoS₂/C composite was prepared by a simple NaCl template-assisted ball milling

SUBMITTER: Pan K 

PROVIDER: S-EPMC9032557 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature