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Penne‐Like MoS 2 /Carbon Nanocomposite as Anode for Sodium‐Ion‐Based Dual‐Ion Battery
Author(s) -
Zhu Haili,
Zhang Fan,
Li Jinrui,
Tang Yongbing
Publication year - 2018
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.201703951
Subject(s) - anode , materials science , sodium ion battery , battery (electricity) , ion , electrolyte , nanocomposite , cathode , sodium , graphite , carbon nanotube , nanotechnology , extraction (chemistry) , chemical engineering , electrode , analytical chemistry (journal) , chemistry , chromatography , composite material , power (physics) , physics , organic chemistry , faraday efficiency , quantum mechanics , engineering , metallurgy
The dual‐ion battery (DIB) system has attracted great attention owing to its merits of low cost, high energy, and environmental friendliness. However, the DIBs based on sodium‐ion electrolytes are seldom reported due to the lack of appropriate anode materials for reversible Na + insertion/extraction. Herein, a new sodium‐ion based DIB named as MoS 2 /C‐G DIB using penne‐like MoS 2 /C nanotube as anode and expanded graphite as cathode is constructed and optimized for the first time. The hierarchical MoS 2 /C nanotube provides expanded (002) interlayer spacing of 2H‐MoS 2 , which facilitates fast Na + insertion/extraction reaction kinetics, thus contributing to improved DIB performance. The MoS 2 /C‐G DIB delivers a reversible capacity of 65 mA h g −1 at 2 C in the voltage window of 1.0–4.0 V, with good cycling performance for 200 cycles and 85% capacity retention, indicating the feasibility of potential applications for sodium‐ion based DIBs.