Solution-processable redox-active polymers of intrinsic microporosity for electrochemical energy storage
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Published version
Author(s)
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.
Date Issued
2022-09-21
Date Acceptance
2022-08-26
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
Commission of the European Communities
The Royal Society
Commission of the European Communities
Engineering & Physical Science Research Council (E
The Royal Society
Identifier
http://pubs.acs.org/doi/10.1021/jacs.2c07575
Grant Number
758370
URF\R\180012
851272
Bth Ref: RC-CE1204
UF120469
Subjects
Science & Technology
Physical Sciences
Chemistry, Multidisciplinary
Chemistry
COVALENT ORGANIC FRAMEWORKS
CATHODE MATERIALS
ELECTRODES
MEMBRANES
POLYIMIDES
SEPARATION
General Chemistry
03 Chemical Sciences
Publication Status
Published
Date Publish Online
2022-09-08