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Preparation of MoS 2 ‐Coated Three‐Dimensional Graphene Networks for High‐Performance Anode Material in Lithium‐Ion Batteries
Author(s) -
Cao Xiehong,
Shi Yumeng,
Shi Wenhui,
Rui Xianhong,
Yan Qingyu,
Kong Jing,
Zhang Hua
Publication year - 2013
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201202697
Subject(s) - graphene , anode , materials science , composite number , lithium (medication) , current density , electrochemistry , current collector , ion , nanotechnology , chemical engineering , electrode , optoelectronics , composite material , chemistry , organic chemistry , medicine , physics , quantum mechanics , endocrinology , engineering , electrolyte
A novel composite, MoS 2 ‐coated three‐dimensional graphene network (3DGN), referred to as MoS 2 /3DGN, is synthesized by a facile CVD method. The 3DGN, composed of interconnected graphene sheets, not only serves as template for the deposition of MoS 2 , but also provides good electrical contact between the current collector and deposited MoS 2 . As a proof of concept, the MoS 2 /3DGN composite, used as an anode material for lithium‐ion batteries, shows excellent electrochemical performance, which exhibits reversible capacities of 877 and 665 mAh g −1 during the 50 th cycle at current densities of 100 and 500 mA g −1 , respectively, indicating its good cycling performance. Furthermore, the MoS 2 /3DGN composite also shows excellent high‐current‐density performance, e.g., depicts a 10 th ‐cycle capacity of 466 mAh g −1 at a high current density of 4 A g −1 .