# Redox-Flow Battery Operating in Neutral and Acidic Environments with Multielectron-Transfer-Type Viologen Molecular Assembly

https://mdr.nims.go.jp/datasets/3d1645c1-f65a-4ff3-97e3-0e6151479265

## File

- [ACS AEM-2020_3_4377-4383.pdf](https://mdr.nims.go.jp/filesets/45933153-ed1f-4e7f-9e95-38b7b5d68de2/download) ([Detail](https://mdr.nims.go.jp/filesets/45933153-ed1f-4e7f-9e95-38b7b5d68de2.md))

## Id

3d1645c1-f65a-4ff3-97e3-0e6151479265

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2023-03-29T04:15:33.373628Z

## Updated at

2024-01-05T13:11:54.832696Z

## Published at

2023-03-30T01:00:41.509346Z

## Doi



## First published url

https://doi.org/10.1021/acsaem.0c00067

## Date published

2020-05-26

## Recorded date published

2020-5-26

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Redox-Flow Battery Operating in Neutral and Acidic Environments with Multielectron-Transfer-Type
    Viologen Molecular Assembly
  title_type: original
  lang: en

## Description

- description: Recently, redox flow batteries (RFBs) have attracted attention as a
    large-scale energy storage technology. To improve their energy density, we investigated
    organic-based active materials with high water solubility, synthesized regular
    dendritic structures comprising viologen molecular assemblies, and applied them
    to RFBs. The compounds containing 3, 5, and 13 viologen molecular units showed
    electrolysis activity corresponding to the number of units, and it was found that
    the redox reaction progressed quantitatively. Furthermore, the charge and discharge
    characteristics confirmed that the energy efficiency was improved compared to
    methyl viologen batteries. These compounds have high solubility, and the viologen
    derivatives can function in acidic conditions, in which methyl viologen does not
    work as a redox active material, due to reduced interaction between molecules
    and the cation exchange membrane. Finally, molecules having 5 and 13 viologen
    units can be prepared to concentrations of 1 M and 0.5 M, theoretically reaching
    a capacity of 134 and 174 Ah/L, respectively.
  description_type: abstract
  lang: eng

## Creator

- name: Akihiro Ohira
  role: author
- name: Takashi Funaki
  role: author
- name: Erika Ishida
  role: author
- name: Je-Deok Kim
  role: author
  orcid: https://orcid.org/0000-0003-4301-1044
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Yukari Sato
  role: author

## Contact agent



## Publisher

organization: American Chemical Society (ACS)

## Managing organization



## Keyword

- subject: redox flow battery
  schema: not_defined
- subject: organic molecules
  schema: not_defined
- subject: aqueous solution
  schema: not_defined
- subject: molecular assembly
  schema: not_defined
- subject: dendritic structure
  schema: not_defined
- subject: viologen
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: ACS Applied Energy Materials
  issn: '25740962'
  volume: '3'
  issue: '5'
  start_page: 4377
  end_page: 4383

## Conference



## Related item



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## Instrument



## Instrument operator



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## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



## Software



## Custom property



## Fileset

- id: 45933153-ed1f-4e7f-9e95-38b7b5d68de2
  filename: ACS AEM-2020_3_4377-4383.pdf
  content_type: application/pdf
  size: 3169757
  md5: eba63063d9f399d526cdfe60a35aed6f

## Thumbnail

fileset_id: 45933153-ed1f-4e7f-9e95-38b7b5d68de2
filename: ACS AEM-2020_3_4377-4383.pdf