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Solution-Processable Redox-Active Polymers of Intrinsic Microporosity for Electrochemical Energy Storage

Wang, Anqi; Tan, Rui; Breakwell, Charlotte; Wei, Xiaochu; Fan, Zhiyu; Ye, Chunchun; Malpass-Evans, Richard; ... Song, Qilei; + view all (2022) Solution-Processable Redox-Active Polymers of Intrinsic Microporosity for Electrochemical Energy Storage. Journal of the American Chemical Society 10.1021/jacs.2c07575. (In press). Green open access

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Abstract

Redox-active organic materials have emerged as promising alternatives to conventional inorganic electrode materials in electrochemical devices for energy storage. However, the deployment of redox-active organic materials in practical lithium-ion battery devices is hindered by their undesired solubility in electrolyte solvents, sluggish charge transfer and mass transport, as well as processing complexity. Here, we report a new molecular engineering approach to prepare redox-active polymers of intrinsic microporosity (PIMs) that possess an open network of subnanometer pores and abundant accessible carbonyl-based redox sites for fast lithium-ion transport and storage. Redox-active PIMs can be solution-processed into thin films and polymer–carbon composites with a homogeneously dispersed microstructure while remaining insoluble in electrolyte solvents. Solution-processed redox-active PIM electrodes demonstrate improved cycling performance in lithium-ion batteries with no apparent capacity decay. Redox-active PIMs with combined properties of intrinsic microporosity, reversible redox activity, and solution processability may have broad utility in a variety of electrochemical devices for energy storage, sensors, and electronic applications.

Type: Article
Title: Solution-Processable Redox-Active Polymers of Intrinsic Microporosity for Electrochemical Energy Storage
Open access status: An open access version is available from UCL Discovery
DOI: 10.1021/jacs.2c07575
Publisher version: https://doi.org/10.1021/jacs.2c07575
Language: English
Additional information: This work is licensed under an Attribution 4.0 International License (CC BY 4.0).
UCL classification: UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL
URI: https://discovery.ucl.ac.uk/id/eprint/10155411
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