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Ferroelectric‐Enhanced Polysulfide Trapping for Lithium–Sulfur Battery Improvement
Author(s) -
Xie Keyu,
You You,
Yuan Kai,
Lu Wei,
Zhang Kun,
Xu Fei,
Ye Mao,
Ke Shanming,
Shen Chao,
Zeng Xierong,
Fan Xiaoli,
Wei Bingqing
Publication year - 2017
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.201604724
Subject(s) - polysulfide , materials science , ferroelectricity , cathode , nanoparticle , polarization (electrochemistry) , lithium–sulfur battery , nanotechnology , trapping , lithium (medication) , sulfur , battery (electricity) , electric field , optoelectronics , chemical engineering , electrode , electrochemistry , dielectric , electrical engineering , electrolyte , metallurgy , chemistry , endocrinology , ecology , engineering , biology , power (physics) , quantum mechanics , medicine , physics
A brand new polysulfide entrapping strategy based on the ferroelectric effect has been demonstrated for the first time. By simply adding the nano‐ferroelectrics (BaTiO 3 nanoparticles) into the cathode, the heteropolar polysulfides can be anchored within the cathode due to the internal electric field originated from the spontaneous polarization BaTiO 3 nanoparticles, and thus significantly improving the cycle stability of Li–S batteries.
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