# Amorphous oxide cathode enabling room-temperature rechargeable magnesium batteries

https://mdr.nims.go.jp/datasets/e5880490-c67b-4732-be87-8b75f0c7354e

## File

- [89_Kawaguchi_Commun Mater 2025_Amorphous oxide for rt RMBs.pdf](https://mdr.nims.go.jp/filesets/06e7daac-4f2f-4b6c-9eb9-3c8cbe45773a/download) ([Detail](https://mdr.nims.go.jp/filesets/06e7daac-4f2f-4b6c-9eb9-3c8cbe45773a.md))

## Id

e5880490-c67b-4732-be87-8b75f0c7354e

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-10-15T06:22:11.882145Z

## Updated at

2025-10-21T07:06:37.347555Z

## Published at

2025-10-21T06:43:40.055934Z

## Doi



## First published url

https://doi.org/10.1038/s43246-025-00921-0

## Date published

2025-09-17

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Amorphous oxide cathode enabling room-temperature rechargeable magnesium
    batteries
  title_type: original
  lang: en

## Description

- description: Rechargeable magnesium batteries (RMBs) have faced challenges in utilizing
    oxide cathodes due to the inherently sluggish Mg diffusion and poor compatibility
    with electrolytes, despite the high redox potential. Herein, we present a prototype
    RMB that is operational at room temperature, consisting of a nanoparticulate amorphous
    oxide cathode, fluorinated alkoxyborate (Mg[B(HFIP)4]2) as the electrolyte, and
    a Mg metal anode. The amorphous MgxTi1/9Mo2/9O cathode contains a considerable
    free volume formed by ion exchange between monovalent and divalent cations, facilitating
    Mg diffusion and eventually realizing reversible Mg insertion/extraction at room
    temperature. The reasonable compatibility of the present cathode with the electrolyte
    enables full cell operation with a Mg metal anode, and various analyses have demonstrated
    that Mg intercalation is responsible for the battery performance. The discharging
    capacity is ~150 mAh g−1, and 70 mAh g−1 is maintained after 200 cycles. These
    findings demonstrate the feasibility of RMBs with oxide cathodes that are operational
    at room temperature.
  description_type: abstract
  lang: und

## Creator

- name: Tomoya Kawaguchi
  role: author
  orcid: https://orcid.org/0000-0002-7600-4847
- name: Hikari Sakurai
  role: author
- name: Shusuke Fukui
  role: author
- name: Xiatong Ye
  role: author
  orcid: https://orcid.org/0000-0002-5932-5964
- name: Hongyi Li
  role: author
  orcid: https://orcid.org/0000-0003-1890-3825
- name: Toshihiko Mandai
  role: author
  orcid: https://orcid.org/0000-0002-2403-7794
- name: Norihiko L. Okamoto
  role: author
  orcid: https://orcid.org/0000-0003-0199-7271
- name: Tetsu Ichitsubo
  role: author
  orcid: https://orcid.org/0000-0002-1127-3034

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: Amorphous oxide cathode
  schema: not_defined
- subject: Rechargeable magnesium battery
  schema: not_defined
- subject: free volume
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: Communications Materials
  issn: '26624443'
  volume: '6'
  issue: '1'
  article_number: '203'

## Conference



## Related item



## Funding

- identifier: 21H01646, 22KK0068, 24K01188
  funder_name: MEXT | Japan Society for the Promotion of Science
- identifier: 23H05452
  funder_name: MEXT | Japan Society for the Promotion of Science
- identifier: JPMJGX23S1
  funder_name: MEXT | Japan Science and Technology Agency
- identifier: JPMJGX23S1
  funder_name: MEXT | Japan Science and Technology Agency

## Instrument



## Instrument operator



## Instrument managing organization



## 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: 06e7daac-4f2f-4b6c-9eb9-3c8cbe45773a
  filename: 89_Kawaguchi_Commun Mater 2025_Amorphous oxide for rt RMBs.pdf
  content_type: application/pdf
  size: 4271146
  md5: e87102b9b85f2daeab948409a58b8bee

## Thumbnail

fileset_id: 06e7daac-4f2f-4b6c-9eb9-3c8cbe45773a
filename: 89_Kawaguchi_Commun Mater 2025_Amorphous oxide for rt RMBs.pdf