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A High‐Energy Room‐Temperature Sodium‐Sulfur Battery
Author(s) -
Xin Sen,
Yin YaXia,
Guo YuGuo,
Wan LiJun
Publication year - 2014
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201304126
Subject(s) - sulfur , materials science , battery (electricity) , cathode , electrochemistry , energy storage , chemical engineering , nanotechnology , electrode , inorganic chemistry , chemistry , metallurgy , power (physics) , thermodynamics , physics , engineering
Employing small sulfur molecules as the active cathode component for room‐temperature Na‐S batteries, reveals a novel mechanism that is verified for the batteries' electrochemistry. The sulfur cathode enables a complete two‐electron reaction to form Na 2 S, bringing a tripled specific capacity and an increased specific energy compared with traditional high‐temperature Na‐S batteries. At the same time, it offers better cycling stability endowing the batteries with a longer lifespan.