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

• DOI: 10.1021/jacs.2c07575
• Publication Date: 2022-09-08T15:06:03Z
• Authors: Anqi Wang; Rui Tan; Charlotte Breakwell; Xiaochu Wei; Zhiyu Fan; Chunchun Ye; Richard Malpass-E...; Tao Liu; Martijn A. Zwijne...; Kim E. Jelfs; Neil B. McKeown; Jun Chen; Qilei Song
• Keywords: Electrochemical energy storage

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