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Sandwich-Structured Ordered Mesoporous Polydopamine/MXene Hybrids as High-Performance Anodes for Lithium-Ion Batteries

Journal Article


Abstract


  • Copyright © 2020 American Chemical Society. Organic polymers have attracted significant interest as electrodes for energy storage devices because of their advantages, including molecular flexibility, cost-effectiveness, and environmentally friendly nature. Nevertheless, the real implementation of polymer-based electrodes is restricted by their poor stability, low capacity, and slow electron-transfer/ion diffusion kinetics. In this work, a sandwich-structured composite of ordered mesoporous polydopamine (OMPDA)/Ti3C2Tx has been fabricated by in situ polymerization of dopamine on the surface of Ti3C2Tx via employing the PS-b-PEO block polymer as a soft template. The OMPDA layers with vertically oriented, accessible nanopores (âˆ20 nm) provide a continuous pore channel for ion diffusion, while the Ti3C2Tx layers guarantee a fast electron-transfer path. The OMPDA/Ti3C2Tx composite anode exhibits high reversible capacity, good rate performance, and excellent cyclability for lithium-ion batteries. The in situ transmission electron microscopy analysis reveals that the OMPDA in the composite only shows a small volume expansion and almost preserves the initial morphology during lithiation. Moreover, these in situ experiments also demonstrate the generation of a stable and ultrathin solid electrolyte interphase layer surrounding the active material, which acts as an electrode protective film during cycling. This study demonstrates the method to develop polymer-based electrodes for high-performance rechargeable batteries. ©

UOW Authors


  •   Li, Tao (external author)
  •   Ding, Bing (external author)
  •   Wang, Jie (external author)
  •   Qin, Zongyi (external author)
  •   Fernando, Joseph (external author)
  •   Bando, Yoshio
  •   Nanjundan, Ashok (external author)
  •   Kaneti, Yusuf (external author)
  •   Golberg, Dmitri (external author)
  •   Yamauchi, Yusuke (external author)

Publication Date


  • 2020

Citation


  • Li, T., Ding, B., Wang, J., Qin, Z., Fernando, J., Bando, Y., Nanjundan, A., Kaneti, Y., Golberg, D. & Yamauchi, Y. (2020). Sandwich-Structured Ordered Mesoporous Polydopamine/MXene Hybrids as High-Performance Anodes for Lithium-Ion Batteries. ACS Applied Materials and Interfaces,

Scopus Eid


  • 2-s2.0-85082335192

Place Of Publication


  • United States

Abstract


  • Copyright © 2020 American Chemical Society. Organic polymers have attracted significant interest as electrodes for energy storage devices because of their advantages, including molecular flexibility, cost-effectiveness, and environmentally friendly nature. Nevertheless, the real implementation of polymer-based electrodes is restricted by their poor stability, low capacity, and slow electron-transfer/ion diffusion kinetics. In this work, a sandwich-structured composite of ordered mesoporous polydopamine (OMPDA)/Ti3C2Tx has been fabricated by in situ polymerization of dopamine on the surface of Ti3C2Tx via employing the PS-b-PEO block polymer as a soft template. The OMPDA layers with vertically oriented, accessible nanopores (âˆ20 nm) provide a continuous pore channel for ion diffusion, while the Ti3C2Tx layers guarantee a fast electron-transfer path. The OMPDA/Ti3C2Tx composite anode exhibits high reversible capacity, good rate performance, and excellent cyclability for lithium-ion batteries. The in situ transmission electron microscopy analysis reveals that the OMPDA in the composite only shows a small volume expansion and almost preserves the initial morphology during lithiation. Moreover, these in situ experiments also demonstrate the generation of a stable and ultrathin solid electrolyte interphase layer surrounding the active material, which acts as an electrode protective film during cycling. This study demonstrates the method to develop polymer-based electrodes for high-performance rechargeable batteries. ©

UOW Authors


  •   Li, Tao (external author)
  •   Ding, Bing (external author)
  •   Wang, Jie (external author)
  •   Qin, Zongyi (external author)
  •   Fernando, Joseph (external author)
  •   Bando, Yoshio
  •   Nanjundan, Ashok (external author)
  •   Kaneti, Yusuf (external author)
  •   Golberg, Dmitri (external author)
  •   Yamauchi, Yusuke (external author)

Publication Date


  • 2020

Citation


  • Li, T., Ding, B., Wang, J., Qin, Z., Fernando, J., Bando, Y., Nanjundan, A., Kaneti, Y., Golberg, D. & Yamauchi, Y. (2020). Sandwich-Structured Ordered Mesoporous Polydopamine/MXene Hybrids as High-Performance Anodes for Lithium-Ion Batteries. ACS Applied Materials and Interfaces,

Scopus Eid


  • 2-s2.0-85082335192

Place Of Publication


  • United States