# Visualization and evaluation of lithium diffusion at grain boundaries in Li<sub>0.29</sub>La<sub>0.57</sub>TiO<sub>3</sub> solid electrolytes using secondary ion mass spectrometry

https://mdr.nims.go.jp/datasets/112f1dc3-aafd-4fc7-ba86-bd2f7b9fee7b

## File

- [Hasegawa2024_d3ta05012b.pdf](https://mdr.nims.go.jp/filesets/85835c1d-2ac5-4a3f-9c19-fedf6aa36dc3/download) ([Detail](https://mdr.nims.go.jp/filesets/85835c1d-2ac5-4a3f-9c19-fedf6aa36dc3.md))

## Id

112f1dc3-aafd-4fc7-ba86-bd2f7b9fee7b

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-03-11T01:13:01.275127Z

## Updated at

2024-03-19T07:57:08.034002Z

## Published at

2024-03-19T07:57:08.368158Z

## Doi



## First published url

https://doi.org/10.1039/d3ta05012b

## Date published

2023-12-18

## Recorded date published

2024-1-3

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Visualization and evaluation of lithium diffusion at grain boundaries in
    Li<sub>0.29</sub>La<sub>0.57</sub>TiO<sub>3</sub> solid electrolytes using secondary
    ion mass spectrometry
  title_type: original
  lang: en

## Description

- description: 'Understanding Li diffusion at the interfaces in solid-state Li batteries
    is essential to improving their performance (e.g., rate capabilities, energy densities).
    However, the visualization of Li diffusion at grain boundaries has been impossible
    due to the lack of experimental techniques. In this study, we visualize Li-ion
    diffusion at grain boundaries via secondary ion mass spectrometry at low temperatures
    (≈ −110 °C) using an isotope exchange technique for perovskite-type Li0.29La0.57TiO3
    as a model solid electrolyte. The grain boundary diffusion coefficient obtained
    in this study is 1.4 × 10−13 cm2 s−1 at 25 °C, which is much smaller than the
    bulk diffusion coefficient of 2.6 × 10−8 cm2 s−1. The long-range effective diffusion
    coefficients can be explained well by a 1D model based on a series of bulk and
    grain boundaries. The Haven ratio of grain boundary diffusion suggests that correlation
    between the Li+ ions is crucial for grain boundary diffusion. '
  description_type: abstract
  lang: und

## Creator

- name: Gen Hasegawa
  role: author
  orcid: https://orcid.org/0000-0002-9297-6902
  organization: National Institute for Materials Science
- name: Naoaki Kuwata
  role: author
  orcid: https://orcid.org/0000-0002-0736-6967
  organization: National Institute for Materials Science
- name: Tsuyoshi Ohnishi
  role: author
  orcid: https://orcid.org/0000-0002-2333-7752
  organization: National Institute for Materials Science
- name: Kazunori Takada
  role: author
  orcid: https://orcid.org/0000-0001-7568-1806
  organization: National Institute for Materials Science

## Contact agent



## Publisher

organization: Royal Society of Chemistry (RSC)

## Managing organization



## Keyword

- subject: TOF-SIMS
  schema: not_defined
- subject: Isotope exchange
  schema: not_defined
- subject: Diffusivity
  schema: not_defined
- subject: Perovskite
  schema: not_defined
- subject: Solid electrolyte
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Journal of Materials Chemistry A
  issn: '20507488'
  issue: '2'
  start_page: 731
  end_page: 738

## Conference



## Related item



## Funding

- identifier: JP19H05814
  funder_name: Japan Society for the Promotion of Science
- identifier: JP21H02033
  funder_name: Japan Society for the Promotion of Science
- identifier: JPMJAL1301
  funder_name: Advanced Low Carbon Technology Research and Development Program

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## Measurement method



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## Chemical composition



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## Structural feature for specimen



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## Process for specimen treatment



## Computational method



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## Fileset

- id: 85835c1d-2ac5-4a3f-9c19-fedf6aa36dc3
  filename: Hasegawa2024_d3ta05012b.pdf
  content_type: application/pdf
  size: 2144761
  md5: eef9124ebcd8245d7d1e229bb1e4980f

## Thumbnail

fileset_id: 85835c1d-2ac5-4a3f-9c19-fedf6aa36dc3
filename: Hasegawa2024_d3ta05012b.pdf