# Mechanistic insight of Li cluster formation and dendrite deposition in sulfide all-solid-state battery with hard-carbon electrode analyzed using 7Li operando nuclear magnetic resonance

https://mdr.nims.go.jp/datasets/b4e73623-d558-47b8-8111-5ebd4ddc4e39

## File

- [7Li_Operand_JPowerSource_2025.pdf](https://mdr.nims.go.jp/filesets/85528e6c-ca19-44d6-aec3-e6e77e822bed/download) ([Detail](https://mdr.nims.go.jp/filesets/85528e6c-ca19-44d6-aec3-e6e77e822bed.md))

## Id

b4e73623-d558-47b8-8111-5ebd4ddc4e39

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-01-09T00:52:33.947212Z

## Updated at

2026-01-09T01:15:02.690558Z

## Published at

2026-01-09T03:22:32.770282Z

## Doi



## First published url

https://doi.org/10.1016/j.jpowsour.2025.238755

## Date published

2025-11-07

## Recorded date published

2026-1

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Mechanistic insight of Li cluster formation and dendrite deposition in sulfide
    all-solid-state battery with hard-carbon electrode analyzed using 7Li operando
    nuclear magnetic resonance
  title_type: original
  lang: en

## Description

- description: Because lithium dendrite deposition during charging and discharging
    of all solid-state batteries (ASSLBs) is an important difficulty leading to deactivation,
    precise analysis of the lithium state is indispensable. We explored the potential
    use of hard-carbon (HC) for an ASSLB anode using operando 7Li NMR to investigate
    lithium behavior. Cells using circular electrodes capable of applying constraint
    pressure to the electrode material were fabricated to achieve precise operando
    NMR measurements for sulfur-based ASSLBs. Adsorption and desorption behaviors
    of lithium in HC were found to be nearly identical to those of HC in liquid LIBs.
    However, short circuits occurred after several hours of constant current overlithiation
    or potential holding at −5.5 mV although no clear amplification of Li dendrite
    signal was observed. Signal components attributable to quasimetallic clusters
    were observed in both cases, which suggests that lithium can form clusters in
    open pores or on the HC surface during overlithiation. Clusters in the open pores
    or surface can conduct electricity and may serve as nucleation sites for dendrite
    growth. Although the use of HC anodes can suppress dendrite formation in ASSLBs,
    more precise voltage control is required than that used for liquid LIBs.
  description_type: abstract
  lang: und

## Creator

- name: Osamu Tagami
  role: author
- name: Hibiki Fukushima
  role: author
- name: Yumu Nishigaki
  role: author
- name: Ayumi Shikata
  role: author
  orcid: https://orcid.org/0009-0001-4754-5417
- name: Masakuni Takahashi
  role: author
- name: Kenjiro Hashi
  role: author
  orcid: https://orcid.org/0000-0002-0320-4768
- name: Shinobu Ohki
  role: author
  orcid: https://orcid.org/0000-0002-7357-3833
- name: Takashi Teranishi
  role: author
  orcid: https://orcid.org/0000-0001-8755-1224
- name: Kazuma Gotoh
  role: author
  orcid: https://orcid.org/0000-0002-8197-5701

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: operand nmr
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Journal of Power Sources
  issn: '03787753'
  volume: '662'
  article_number: '238755'

## Conference



## Related item



## Funding

- identifier: JPJ004596
  funder_name: American Theological Library Association
- identifier: 23K04535
  funder_name: Japan Society for the Promotion of Science

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



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## Process for specimen treatment



## Computational method



## Energy level/transition state



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## Fileset

- id: 85528e6c-ca19-44d6-aec3-e6e77e822bed
  filename: 7Li_Operand_JPowerSource_2025.pdf
  content_type: application/pdf
  size: 4576663
  md5: a7e020b1f253268004b0c908c8de7226

## Thumbnail

fileset_id: 85528e6c-ca19-44d6-aec3-e6e77e822bed
filename: 7Li_Operand_JPowerSource_2025.pdf