Two-Dimensional Polydopamine Positive Electrodes for High-Capacity Alkali Metal-Ion Storage

Byeongyong Lee*, Kyungbin Lee, Mochen Li, Suguru Noda, Seung Woo Lee

*この研究の対応する著者

研究成果: Article査読

1 被引用数 (Scopus)

抄録

Redox-active organic compounds have attracted substantial attention as charge storage materials, owing to their high theoretical capacity. Herein, a two-dimensional organic electrode material is prepared by using hydrothermally polymerized dopamine molecules on graphene nanosheets. Two-dimensional polydopamine is employed as a positive electrode for storing alkali metal ions based on the surface redox reaction between oxygen functional groups and alkali ions. The two-dimensional polydopamine positive electrodes deliver high capacities of 255 mAh g−1 in Li cells, 150 mAh g−1 in Na cells, and 124 mAh g−1 in K cells at 0.1 A g−1, demonstrating a promising organic positive electrode for rechargeable alkali-ion batteries.

本文言語English
ページ(範囲)1070-1077
ページ数8
ジャーナルChemElectroChem
8
6
DOI
出版ステータスPublished - 2021 3 12

ASJC Scopus subject areas

  • 触媒
  • 電気化学

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