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Surface‐Initiated Growth of Thin Oxide Coatings for Li–Sulfur Battery Cathodes
Author(s) -
Lee Kyu Tae,
Black Robert,
Yim Taeeun,
Ji Xiulei,
Nazar Linda F.
Publication year - 2012
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201200006
Subject(s) - polysulfide , materials science , dissolution , faraday efficiency , cathode , sulfur , battery (electricity) , coating , oxide , chemical engineering , carbon fibers , inorganic chemistry , nanotechnology , electrolyte , metallurgy , composite material , electrode , composite number , power (physics) , quantum mechanics , engineering , chemistry , physics
The concept of surface‐initiated growth of oxides on functionalized carbons is introduced as a method to inhibit the dissolution of polysulfide ions in Li–S battery cathode materials. MO x (M: Si, V) thin layers are homogeneously coated on nanostructured carbon–sulfur composites. The coating significantly inhibits the dissolution of polysulfides on cycling, resulting in enhanced cycle performance and coulombic efficiency of the Li–S battery.