1. ZnS nanoparticles coated with graphene-like nano-cell as anode materials for high rate capability lithium-ion batteries.
- Author
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Du, Huiwei, Gui, Xuchun, Yang, Rongliang, Zhang, Hao, Lin, Zhiqiang, Liang, Binghao, Chen, Wenjun, Zhu, Hai, and Chen, Jun
- Subjects
ZINC sulfide ,GRAPHENE ,ANODES ,LITHIUM-ion batteries ,NANOPARTICLE synthesis ,CHEMICAL vapor deposition - Abstract
A core-shell structure ZnS nanocomposite was synthesized by wrapping ZnS nanoparticles up in graphene-like nano-cell (GLC@ZnS) through chemical vapor deposition. The morphological and structural characteristics exhibit that the obtained GLC@ZnS composite possesses high-quality ZnS nano-sized particles and laminated graphene-like layers shell. When applied as anode materials for lithium-ion batteries, the GLC@ZnS composite (high ZnS content of 97.2%) with diameter of 30 nm delivers high reversible capacities (1134 mAh g
−1 after 100 cycles at 0.5 A g−1 , 890 mAh g−1 after 200 cycles at 1.0 A g−1 ) and excellent rate capability (701 mAh g−1 at 8.0 A g−1 ). The excellent electrochemical performance of the composite is ascribed to the inclosed graphene-like nano-cell, which could localize the active materials and enhance the exchange of charges and ions. [ABSTRACT FROM AUTHOR]- Published
- 2018
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