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Tungsten Disulfide Catalysts Supported on a Carbon Cloth Interlayer for High Performance Li–S Battery
Author(s) -
Park Jungjin,
Yu ByeongChul,
Park Joong Sun,
Choi Jang Wook,
Kim Chunjoong,
Sung YungEun,
Goodenough John B.
Publication year - 2017
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.201602567
Subject(s) - cathode , materials science , tungsten disulfide , anode , tungsten , battery (electricity) , current collector , electrolyte , carbon fibers , lithium (medication) , lithium–sulfur battery , chemical engineering , sulfur , molybdenum disulfide , inorganic chemistry , electrode , composite material , chemistry , metallurgy , medicine , power (physics) , physics , quantum mechanics , composite number , engineering , endocrinology
The capacity limitations of insertion‐compound cathodes has motivated interest in a sulfur cathode for a rechargeable battery cell with a metallic‐lithium anode; but irreversible capacity loss owing to solubility of intermediate Li 2 S x (x = 2–8) polysulfides in the organic‐liquid electrolytes used has prevented practical application. A dual‐function cathode structure consisting of layered tungsten disulfide (WS 2 ) supported both on the cathode current collector and on a carbon cloth interlayer (CCl) gives excellent performance in a lithium half‐cell by providing strong adsorption of the soluble Li 2 S x on the WS 2 with fast access to electrons from the current collector via a blocking carbon cloth interlayer.