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Simple and Controllable Synthesis of Three‐Dimensional Spheroidal Structure of MoS 2 /rGO under Lower Temperature for Enhanced Properties in Lithium Battery
Author(s) -
Yang Zezhou,
Yang Jingjing,
Zong Liming,
Ren Lan,
Guli Mina
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201901368
Subject(s) - anode , graphene , materials science , lithium (medication) , electrolyte , battery (electricity) , conductivity , electrochemistry , chemical engineering , lithium battery , nanotechnology , hydrothermal circulation , composite material , electrode , chemistry , ion , medicine , power (physics) , physics , organic chemistry , quantum mechanics , endocrinology , ionic bonding , engineering
MoS 2 has a larger specific capacity than graphene, however with low conductivity and easily broken structure during charging and discharging. Graphene can be used as a carrier to prevent agglomeration of MoS 2 sheet, so that the electrolyte is sufficiently in contact with the active material. MoS 2 /rGO is prepared by hydrothermal method in simple, fast and controllable way, which is low in energy consumption and excellent in sample quality. Materials are characterized by SEM, XRD and electrochemical performance tests. Then, they are used as the anode materials of the lithium half‐cell and the performance of the lithium half‐cell is tested and analyzed. MoS 2 has a capacity of 608.4 mAh g −1 , which is higher than the existing lithium battery anode material. MoS 2 /rGO has a unique three‐dimensional spheroidal structure. The conductivity and structural stability of the material are greatly improved, moreover, the capacity is further improved to 853.7 mAh g −1 .