# Elucidation of Mass Transport Phenomena in Highly Concentrated Electrolytes during Current Cycling Using In-Situ Interferometry and Finite Difference Method

https://mdr.nims.go.jp/datasets/820f572e-afc3-48d2-ade3-a753c0814bfd

## File

- [Revised manuscript2.docx](https://mdr.nims.go.jp/filesets/975b9934-0849-4689-9941-992175ea9729/download) ([Detail](https://mdr.nims.go.jp/filesets/975b9934-0849-4689-9941-992175ea9729.md))

## Id

820f572e-afc3-48d2-ade3-a753c0814bfd

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-08-26T08:36:35.829585Z

## Updated at

2025-04-16T23:41:17.353740Z

## Published at

2025-04-16T23:40:23.914811Z

## Doi

https://doi.org/10.48505/nims.4841

## First published url

https://doi.org/10.1149/1945-7111/ad3ad1

## Date published

2024-04-01

## Recorded date published

2024-4-1

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Elucidation of Mass Transport Phenomena in Highly Concentrated Electrolytes
    during Current Cycling Using In-Situ Interferometry and Finite Difference Method
  title_type: original
  lang: en

## Description

- description: Understanding electrolyte mass transfer during charge–discharge reactions
    is essential for developing next-generation storage batteries with high energy
    densities. In this study, we investigated Li+ transport in a highly concentrated
    electrolyte (HCE) consisting of an equimolar mixture of lithium bis(fluorosulfonyl)amide
    (LiFSA) and tetraglyme (G4) under current reversal and re-reversal. Concentration
    profiles of the electrolyte at a distance of 0–600 μm from the Li electrodes were
    obtained using in situ laser interferometry. The Li+ transference numbers and
    LiFSA diffusion coefficients were calculated from these profiles. Raman spectroscopy
    suggested that the coordination structure surrounding Li+ ions in the electrolytes
    mainly contributed to the transference number. A one-dimensional unsteady diffusion
    equation and the finite difference method were employed to simulate the concentration
    profiles. The maximum error percentage between the measured and simulated values
    was only 3%, confirming the accuracy and validity of the interferometric measurements.
    Our findings on Li-ion transfer in HCEs could promote the rational design of high-energy-density
    Li-ion batteries with higher cation transference numbers of electrolytes and charge–discharge
    rates.
  description_type: abstract
  lang: und

## Creator

- name: Go Kamesui
  role: author
- name: Kei Nishikawa
  role: author
  orcid: https://orcid.org/0000-0002-7718-7606
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Mikito Ueda
  role: author
- name: Hisayoshi Matsushima
  role: author

## Contact agent



## Publisher

organization: The Electrochemical Society

## Managing organization



## Keyword

- subject: ionic mass transfer
  schema: not_defined
- subject: Li electrodeposition
  schema: not_defined

## Rights

- description: This is the Accepted Manuscript version of an article accepted for
    publication in Journal of The Electrochemical Society.  IOP Publishing Ltd is
    not responsible for any errors or omissions in this version of the manuscript
    or any version derived from it.  The Version of Record is available online at
    https://dx.doi.org/10.1149/1945-7111/ad3ad1.
  identifier: https://creativecommons.org/licenses/by-nc-nd/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2024-04-15
end_date: 2025-04-15

## Journal

- title: Journal of The Electrochemical Society
  issn: '00134651'
  volume: '171'
  issue: '4'
  article_number: '040519'

## Conference



## Related item



## Funding

- identifier: JPMJPF2016
  funder_name: Japan Science and Technology Agency
- identifier: 23KJ0054
  funder_name: Japan Society for the Promotion of Science

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## Fileset

- id: 975b9934-0849-4689-9941-992175ea9729
  filename: Revised manuscript2.docx
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
  size: 892677
  md5: 047d4b169df50c78a5fb891fa45dbb26

## Thumbnail

fileset_id: 975b9934-0849-4689-9941-992175ea9729
filename: Revised manuscript2.docx