Probing multi-redox mechanism of covalent organic frameworks in high-performance aluminium organic batteries via operando synchrotron piezo-controlled ATR-FTIR microspectroscopy (2025)
Abstract
Aluminium ion batteries (AIBs) employing organic electrode materials present an appealing avenue for sustainable and large-scale energy storage. Small organic molecules are hindered by their limited active sites for Al storage, high solubility and poor conductivity. Our recent research developed redox-active covalent organic framework (COF) materials with high capacity and good cycling stability for Al storage. This project aims to reveal the unique charge/discharge mechanism of the prepared COF materials. The operando synchrotron ATR-FTIR microspectroscopy will help uncover the chemical structure evolution and the pivotal roles of multiple functional groups, critical for underpinning development of new functional materials for AIBs.
