Issue 1, 2023

Charge-transport kinetics of dissolved redox-active polymers for rational design of flow batteries

Abstract

Charge-transport kinetics of redox-active polymers is essential in designing electrochemical devices. We formulate the homogeneous and heterogeneous charge-transfer processes of the redox-active polymers dissolved in electrolytes. The critical electrochemical parameters, the apparent diffusion coefficient of charge transport (Dapp) and standard electrochemical reaction constant (k0), are estimated by considering the physical diffusion Dphys of polymer chains (Dapp, k0Dphys). The models are validated with previously reported compounds and newly synthesized hydrophilic macromolecules. Solution-type cells are examined to analyze their primary responses from the electrochemical viewpoints.

Graphical abstract: Charge-transport kinetics of dissolved redox-active polymers for rational design of flow batteries

Supplementary files

Article information

Article type
Paper
Submitted
14 Nov 2022
Accepted
15 Dec 2022
First published
22 Dec 2022
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2023,13, 547-557

Charge-transport kinetics of dissolved redox-active polymers for rational design of flow batteries

K. Hatakeyama-Sato, Y. Igarashi and K. Oyaizu, RSC Adv., 2023, 13, 547 DOI: 10.1039/D2RA07208D

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