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Enhanced Electrochemical Kinetics and Polysulfide Traps of Indium Nitride for Highly Stable Lithium-Sulfur Batteries.
Zhang, Linlin; Chen, Xiang; Wan, Fang; Niu, Zhiqiang; Wang, Yijing; Zhang, Qiang; Chen, Jun.
Afiliação
  • Zhang L; Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry , Nankai University , Tianjin 300071 , People's Republic of China.
  • Chen X; Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering , Tsinghua University , Beijing 100084 , People's Republic of China.
  • Wan F; Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry , Nankai University , Tianjin 300071 , People's Republic of China.
  • Niu Z; Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry , Nankai University , Tianjin 300071 , People's Republic of China.
  • Wang Y; Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry , Nankai University , Tianjin 300071 , People's Republic of China.
  • Zhang Q; Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering , Tsinghua University , Beijing 100084 , People's Republic of China.
  • Chen J; Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry , Nankai University , Tianjin 300071 , People's Republic of China.
ACS Nano ; 12(9): 9578-9586, 2018 Sep 25.
Artigo em Inglês | MEDLINE | ID: mdl-30199634
ABSTRACT
Lithium-sulfur (Li-S) batteries are strongly considered as promising energy storage devices due to their high capacity and large theoretical energy density. However, the shuttle of polysulfides and their sluggish kinetic conversion in electrochemical processes seriously reduce the utilization of active sulfur, leading to a rapid capacity fading. Herein we introduced indium nitride (InN) nanowires into Li-S batteries through separator modification. Both the indium cation and electron-rich nitrogen atom of InN served as the polysulfide traps through strong chemical affinity. Meanwhile, the rapid electron transfer on the surface of InN accelerated the conversion of polysulfides in a working battery. The bifunction of InN nanowires effectively suppressed the shuttle effect. Therefore, Li-S batteries with InN-modified separators exhibit excellent rate performance and high stable cycling life with only 0.015% capacity decay per cycle after 1000 cycles, which affords fresh insights into the energy chemistry of high-stable Li-S batteries.

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Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: MEDLINE Idioma: Inglês Revista: ACS Nano Ano de publicação: 2018 Tipo de documento: Artigo