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

Kan Hatakeyama-Sato; Yuto Igarashi; Kenichi Oyaizu

doi:10.1039/d2ra07208d

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

Kan Hatakeyama-Sato^*, Yuto Igarashi, Kenichi Oyaizu^*

^*Corresponding author for this work

School of Advanced Science and Engineering

Research output: Contribution to journal › Article › peer-review

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 (D_app) and standard electrochemical reaction constant (k⁰), are estimated by considering the physical diffusion D_phys of polymer chains (D_app, k⁰ ∝ D_phys). 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.

Original language	English
Pages (from-to)	547-557
Number of pages	11
Journal	RSC Advances
Volume	13
Issue number	1
DOIs	https://doi.org/10.1039/d2ra07208d
Publication status	Published - 2022 Dec 22

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)

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10.1039/d2ra07208d

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title = "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, k0 ∝ Dphys). 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.",

author = "Kan Hatakeyama-Sato and Yuto Igarashi and Kenichi Oyaizu",

note = "Funding Information: This work was partially supported by Grants-in-Aid for Scientific Research (No. 21H04695, 21H02017, 22H04623, and 20H05298) from the Ministry of Education, Culture, Sports, Science and Technology, Japan. The work was partially supported by JST FOREST Program (Grant Number JPMJFR213V, Japan) and the Research Institute for Science and Engineering, Waseda University. This work was partially supported by Alkali Energy Device Project of Takahata Co. and Waseda University. Publisher Copyright: {\textcopyright} 2023 The Royal Society of Chemistry.",

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doi = "10.1039/d2ra07208d",

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AU - Hatakeyama-Sato, Kan

AU - Igarashi, Yuto

AU - Oyaizu, Kenichi

N1 - Funding Information: This work was partially supported by Grants-in-Aid for Scientific Research (No. 21H04695, 21H02017, 22H04623, and 20H05298) from the Ministry of Education, Culture, Sports, Science and Technology, Japan. The work was partially supported by JST FOREST Program (Grant Number JPMJFR213V, Japan) and the Research Institute for Science and Engineering, Waseda University. This work was partially supported by Alkali Energy Device Project of Takahata Co. and Waseda University. Publisher Copyright: © 2023 The Royal Society of Chemistry.

PY - 2022/12/22

Y1 - 2022/12/22

N2 - 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, k0 ∝ Dphys). 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.

AB - 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, k0 ∝ Dphys). 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.

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

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