Enhanced Cycle Stability of Zinc Sulfide Anode for High-Performance Lithium-Ion Storage: Effect of Conductive Hybrid Matrix on Active ZnS.

ABSTRACT: Zinc sulfide (ZnS) nanocrystallites embedded in a conductive hybrid matrix of titanium carbide and carbon, are successfully fabricated via a facile high-energy ball-milling (HEBM) process. The structural and morphological analyses of the ZnS-TiC-C nanocomposites reveal that ZnS and TiC nanocrystallites are homogeneously distributed in an amorphous carbon matrix. Compared with ZnS-C and ZnS composites, the ZnS-TiC-C nanocomposite exhibits significantly improved electrochemical performance, delivering a highly reversible specific capacity (613 mA h g-1 over 600 cycles at 0.1 A g-1, i.e., ~85% capacity retention), excellent long-term cyclic performance (545 mA h g-1 and 467 mA h g-1 at 0.5 A g-1 and 1 A g-1, respectively, after 600 cycles), and good rate capability at 10 A g-1 (69% capacity r

SUBMITTER: Nguyen QH 

PROVIDER: S-EPMC6780193 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature