Ferroelectric‐Enhanced Polysulfide Trapping for Lithium–Sulfur Battery Improvement

Ferroelectric‐Enhanced Polysulfide Trapping for Lithium–Sulfur Battery Improvement

A brand new polysulfide entrapping strategy based on the ferroelectric effect has been demonstrated for the first time. By simply adding the nano‐ferroelectrics (BaTiO3 nanoparticles) into the cathode, the heteropolar polysulfides can be anchored within the cathode due to the internal electric field...

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Veröffentlicht in:Advanced materials (Weinheim) 2017-02, Vol.29 (6), p.np-n/a
Hauptverfasser: Xie, Keyu, You, You, Yuan, Kai, Lu, Wei, Zhang, Kun, Xu, Fei, Ye, Mao, Ke, Shanming, Shen, Chao, Zeng, Xierong, Fan, Xiaoli, Wei, Bingqing
Format: Artikel
Sprache:eng
Schlagworte:
additives
Barium titanates
BaTiO3 nanoparticles
Batteries
Cathodes
Cathodic polarization
ferroelectric effect
Ferroelectric materials
Ferroelectricity
Lithium sulfur batteries
Materials science
Nanoparticles
Polarization
Polysulfides
Strategy
Trapping
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Zusammenfassung:A brand new polysulfide entrapping strategy based on the ferroelectric effect has been demonstrated for the first time. By simply adding the nano‐ferroelectrics (BaTiO3 nanoparticles) into the cathode, the heteropolar polysulfides can be anchored within the cathode due to the internal electric field originated from the spontaneous polarization BaTiO3 nanoparticles, and thus significantly improving the cycle stability of Li–S batteries.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201604724