A Covalent Organic Framework as a Long-life and High-Rate Anode Suitable for Both Aqueous Acidic and Alkaline Batteries

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Yilun Lin
  • Chao Liu
  • Ran Li
  • Shipeng Wang
  • Guangmeng Qu
  • Yihan Yang
  • Yaxin Wang
  • Zijie Tang
  • Haiyan Zhang
  • Haiming Lv

Detail(s)

Original languageEnglish
Article numbere202218745
Journal / PublicationAngewandte Chemie - International Edition
Volume62
Issue number14
Online published27 Jan 2023
Publication statusPublished - 27 Mar 2023

Abstract

Aqueous rechargeable batteries are prospective candidates for large-scale grid energy storage. However, traditional anode materials applied lack acid-alkali co-tolerance. Herein, we report a covalent organic framework containing pyrazine (C=N) and phenylimino (−NH−) groups (HPP-COF) as a long-cycle and high-rate anode for both acidic and alkaline batteries. The HPP-COF′s robust covalent linkage and the hydrogen bond network between −NH− and water molecules collectively improve the acid-alkaline co-tolerance. More importantly, the hydrogen bond network promotes the rapid transport of H+/OH by the Grotthuss mechanism. As a result, the HPP-COF delivers a superior capacity and cycle stability (66.6 mAh g−1@ 30 A g−1, over 40000 cycles in 1 M H2SO4 electrolyte; 91.7 mAh g−1@ 100 A g−1, over 30000 cycles @ 30 A g−1 in 1 M NaOH electrolyte). The work opens a new direction for the structural design and application of COF materials in acidic and alkaline batteries. © 2023 Wiley-VCH GmbH.

Research Area(s)

  • Anode, Aqueous Acidic Batteries, Aqueous Alkaline Batteries, Covalent Organic Frameworks

Citation Format(s)

A Covalent Organic Framework as a Long-life and High-Rate Anode Suitable for Both Aqueous Acidic and Alkaline Batteries. / Lin, Yilun; Cui, Huilin; Liu, Chao et al.
In: Angewandte Chemie - International Edition, Vol. 62, No. 14, e202218745, 27.03.2023.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review