Issue 45, 2023

Rational design of covalent organic frameworks with high capacity and stability as a lithium-ion battery cathode

Abstract

A two-dimensional covalent organic framework (NTCDI-COF) with rich redox active sites, high stability and crystallinity was designed and prepared. As a cathode material for lithium-ion batteries (LIBs), NTCDI-COF exhibits excellent electrochemical performance with an outstanding discharge capacity of 210 mA h g−1 at 0.1 A g−1 and high capacity retention of 125 mA h g−1 after 1500 cycles at 2 A g−1. A two-step Li+ insertion/extraction mechanism is proposed based on the ex situ characterization and density functional theory calculation. The constructed NTCDI-COF//graphite full cells can realize a good electrochemical performance.

Graphical abstract: Rational design of covalent organic frameworks with high capacity and stability as a lithium-ion battery cathode

Supplementary files

Article information

Article type
Communication
Submitted
15 Feb 2023
Accepted
05 May 2023
First published
05 May 2023

Chem. Commun., 2023,59, 6853-6856

Rational design of covalent organic frameworks with high capacity and stability as a lithium-ion battery cathode

D. Luo, J. Zhang, H. Zhao, H. Xu, X. Dong, L. Wu, B. Ding, H. Dou and X. Zhang, Chem. Commun., 2023, 59, 6853 DOI: 10.1039/D3CC00700F

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