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Combinational Intercalation-Conversion-Intercalation reaction of CuInS2@PPy anode for Sodium-Ion batteries.
Song, Yingying; Cheng, Jingyun; Li, Xueda; Wang, Junzhe; Yan, Zhiming; Li, Dan; Wang, Hongqiang.
Afiliación
  • Song Y; School of Materials Science and Engineering, Shandong University of Technology, Zibo, Shandong, 255049, PR China.
  • Cheng J; College of Chemistry, Zhengzhou University, Zhengzhou, Henan, 450001, PR China.
  • Li X; School of Materials Science and Engineering, Shandong University of Technology, Zibo, Shandong, 255049, PR China.
  • Wang J; School of Materials Science and Engineering, Shandong University of Technology, Zibo, Shandong, 255049, PR China.
  • Yan Z; School of Materials Science and Engineering, Shandong University of Technology, Zibo, Shandong, 255049, PR China.
  • Li D; College of Chemistry, Zhengzhou University, Zhengzhou, Henan, 450001, PR China. Electronic address: danli@zzu.edu.cn.
  • Wang H; School of Materials Science and Engineering, Shandong University of Technology, Zibo, Shandong, 255049, PR China. Electronic address: hwang@sdut.edu.cn.
J Colloid Interface Sci ; 674: 249-255, 2024 Nov 15.
Article en En | MEDLINE | ID: mdl-38936081
ABSTRACT
Polypyrrole-coated CuInS2 (CuInS2@PPy) composite was prepared through the chemical vapor transport method and subsequent in situ polymerized coating strategy. In this unique nanoarchitecture, the PPy coating layer plays a crucial role in improving the conductivity of the composite, suppressing the volume change of CuInS2, and maintaining the structural integrity of electrode material upon cycling. In addition, the electrochemical reaction mechanism and kinetics of CuInS2@PPy were investigated in-depth. Benefitting from the synergism of its combinational intercalation-conversion-intercalation reaction mechanism and the high conductivity of the PPy coating layer, CuInS2@PPy electrode exhibits superior rate capability and cycling stability for sodium-ion batteries, with a capacity of 404.8 mA h g-1 at 4 A g-1 over 2500 cycles.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Colloid Interface Sci Año: 2024 Tipo del documento: Article Pais de publicación: Estados Unidos
Texto completo
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XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Colloid Interface Sci Año: 2024 Tipo del documento: Article Pais de publicación: Estados Unidos