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Suppressing Self‐Discharge and Shuttle Effect of Lithium–Sulfur Batteries with V 2 O 5 ‐Decorated Carbon Nanofiber Interlayer
Author(s) -
Liu Ming,
Li Qing,
Qin Xianying,
Liang Gemeng,
Han Wenjie,
Zhou Dong,
He YanBing,
Li Baohua,
Kang Feiyu
Publication year - 2017
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.201602539
Subject(s) - polysulfide , battery (electricity) , carbon nanofiber , lithium (medication) , sulfur , carbon fibers , nanofiber , redox , work (physics) , materials science , computer science , nanotechnology , chemistry , electrode , engineering , composite material , physics , mechanical engineering , electrolyte , medicine , power (physics) , quantum mechanics , endocrinology , carbon nanotube , composite number , metallurgy
V 2 O 5 decorated carbon nanofibers (CNFs) are prepared and used as a multifunctional interlayer for a lithium–sulfur (Li–S) battery. V 2 O 5 anchored on CNFs can not only suppress the shuttle effect of polysulfide by the strong adsorption and redox reaction, but also work as a high‐potential dam to restrain the self‐discharge behavior in the battery. As a result, Li–S batteries with a high capacity and long cycling life can be stored and rested for a long time without obvious capacity fading.