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- Title
Fabrication of CeS/MoS composites via recrystallization -sulfurization method and their improved electrochemical performance for lithium-ion batteries.
- Authors
Hou, Baoting; Wang, Xinlu; Yao, Jing; Zhang, Hongbo; Yu, Wensheng; Liu, Guixia; Dong, Xiangting; Wang, Limin; Wang, Jinxian
- Abstract
A simple and novel method based on recrystallization-sulfurization method has been developed to fabricate CeS/MoS composite and their structure, morphology and electrochemical performance is researched systematically. The CeS/MoS composite exhibit enhanced electrochemical performance compared with CeS and MoS. Among them, CeS/MoS composite has an initial reversible discharge capacity of 187.5 mAh g, coulombic efficiency of 78.6% and a reversible capacity as high as 636.5 mAh g, coulombic efficiency of 99.7% after 500 cycles at a current density of 100 mA g and the highest discharge capacity of 97.3 mAh g at a high current density of 1000 mA g, showing the best reversible capacity and cycling performance. The results show that the compositing between MoS and CeS can maintain the stability of the structure during the charge/discharge process and existence of CeS can enhance the electrical conductivity of CeS/MoS composite and further improves the reversible capacities, cycling performance and rate performance of CeS/MoS composite.
- Subjects
FABRICATION (Manufacturing); RECRYSTALLIZATION (Metallurgy); ELECTROCHEMICAL analysis; LITHIUM-ion batteries; MOLECULAR orbitals
- Publication
Journal of Materials Science: Materials in Electronics, 2017, Vol 28, Issue 16, p12297
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-017-7047-7