AI Article Synopsis
- The study focuses on a composite material, CuInS@PPy, created using a method that involves both chemical vapor transport and in situ polymerization, resulting in a nanostructured electrode.
- The polypyrrole (PPy) coating enhances the composite's conductivity, minimizes structural changes during battery cycling, and preserves the material’s integrity.
- The CuInS@PPy electrode demonstrates excellent performance for sodium-ion batteries, achieving a capacity of 404.8 mA h g at a high current density of 4 A g over 2500 cycles due to its unique electrochemical mechanisms and high conductivity.
Article Abstract
Polypyrrole-coated CuInS (CuInS@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 CuInS, and maintaining the structural integrity of electrode material upon cycling. In addition, the electrochemical reaction mechanism and kinetics of CuInS@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, CuInS@PPy electrode exhibits superior rate capability and cycling stability for sodium-ion batteries, with a capacity of 404.8 mA h g at 4 A g over 2500 cycles.
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| http://dx.doi.org/10.1016/j.jcis.2024.06.163 | DOI Listing |
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Combinational Intercalation-Conversion-Intercalation reaction of CuInS@PPy anode for Sodium-Ion batteries.
J Colloid Interface Sci
November 2024
School of Materials Science and Engineering, Shandong University of Technology, Zibo, Shandong, 255049, PR China. Electronic address:
Article Synopsis
- The study focuses on a composite material, CuInS@PPy, created using a method that involves both chemical vapor transport and in situ polymerization, resulting in a nanostructured electrode.
- The polypyrrole (PPy) coating enhances the composite's conductivity, minimizes structural changes during battery cycling, and preserves the material’s integrity.
- The CuInS@PPy electrode demonstrates excellent performance for sodium-ion batteries, achieving a capacity of 404.8 mA h g at a high current density of 4 A g over 2500 cycles due to its unique electrochemical mechanisms and high conductivity.
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