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Solution-processable redox-active polymers of intrinsic microporosity for electrochemical energy storage

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Title: Solution-processable redox-active polymers of intrinsic microporosity for electrochemical energy storage
Authors: Wang, A
Tan, R
Breakwell, C
Wei, X
Fan, Z
Ye, C
Malpass-Evans, R
Liu, T
Zwijnenburg, M
Jelfs, K
McKeown, N
Chen, J
Song, Q
Item Type: Journal Article
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 redoxactive 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 sub-nanometer pores and abundant accessible carbonyl-based redox sites for fast lithium-ion transport and storage. Redox-active PIMs can be solutionprocessed 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.
Issue Date: 21-Sep-2022
Date of Acceptance: 26-Aug-2022
URI: http://hdl.handle.net/10044/1/99417
DOI: 10.1021/jacs.2c07575
ISSN: 0002-7863
Publisher: American Chemical Society
Start Page: 17198
End Page: 17208
Journal / Book Title: Journal of the American Chemical Society
Volume: 144
Issue: 37
Copyright Statement: © 2022 The Authors. Published by American Chemical Society. This work is published under a CC BY 4.0 International licence.
Sponsor/Funder: Commission of the European Communities
The Royal Society
Commission of the European Communities
Engineering & Physical Science Research Council (E
The Royal Society
Funder's Grant Number: 758370
URF\R\180012
851272
Bth Ref: RC-CE1204
UF120469
Keywords: Science & Technology
Physical Sciences
Chemistry, Multidisciplinary
Chemistry
COVALENT ORGANIC FRAMEWORKS
CATHODE MATERIALS
ELECTRODES
MEMBRANES
POLYIMIDES
SEPARATION
General Chemistry
03 Chemical Sciences
Publication Status: Published
Online Publication Date: 2022-09-08
Appears in Collections:Chemistry
Chemical Engineering
Faculty of Natural Sciences
Faculty of Engineering



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