Skip to main navigation Skip to search Skip to main content

Multiple Redox-Active Centers in An Azatriangulenetrione-Based Covalent Organic Framework for High-Capacity, High-Rate and Ultra-Stable Sodium-Ion Batteries

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Abstract

Sodium-ion batteries (SIBs) suffer from sluggish kinetics, large volume change, and limited specific capacity due to the large radius of Na+. These issues can be solved through using covalent organic frameworks (COFs) as electrodes. Herein, an azatriangulenetrione-containing COF (denoted as CityU-33) was designed and synthesized as an electrode material for SIBs. Due to its inherent abundance of multiple redox-active sites and fast intercalation kinetics, CityU-33 delivered a high discharge capacity of 410.4 mAh g−1 at 0.1 A g−1 and showed remarkable long-term cycling stability, where a discharge capacity of 288 mAh g−1 at 0.2 A g−1 with 97 % retention over 2000 cycles was achieved, making it the top COF electrode material for SIBs. © 2024 Wiley-VCH GmbH.
Original languageEnglish
Article numbere202417779
JournalAngewandte Chemie - International Edition
Volume64
Issue number6
Online published24 Nov 2024
DOIs
Publication statusPublished - 3 Feb 2025

Funding

Q. Z. acknowledges the funding support from the City University of Hong Kong (9380117 and 7020089) Hong Kong, P. R. China. C.-S. L. and Q. Z. thank the funding support from the Innovation and Technology Fund (ITF, ITS/322/22). Q. Z. also thanks the funding support from the State Key Laboratory of Supramolecular Structure and Materials, Jilin University (sklssm2024039), P. R. China. This article acknowledges the financial support of the Natural Science Foundation of Ningbo (2023 J098).

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Research Keywords

  • Anode
  • Azatriangulenetrione
  • Covalent organic frameworks (COFs)
  • Energy storage
  • Sodium-ion batteries (SIBs)

Fingerprint

Dive into the research topics of 'Multiple Redox-Active Centers in An Azatriangulenetrione-Based Covalent Organic Framework for High-Capacity, High-Rate and Ultra-Stable Sodium-Ion Batteries'. Together they form a unique fingerprint.

Cite this