# An Electrically Conductive CuMn<sub>2</sub>O<sub>4</sub> Ultrananospinel Cathode for Room-Temperature Magnesium Rechargeable Batteries

https://mdr.nims.go.jp/datasets/463c547f-4db5-4a91-9a61-539d4eb98736

## File

- [Mnspinel_manuscript_R1.docx](https://mdr.nims.go.jp/filesets/0e87c630-f0aa-4d44-982c-4e3ba4caef06/download) ([Detail](https://mdr.nims.go.jp/filesets/0e87c630-f0aa-4d44-982c-4e3ba4caef06.md))

## Id

463c547f-4db5-4a91-9a61-539d4eb98736

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-09-04T02:10:23.610483Z

## Updated at

2025-06-11T23:30:34.654331Z

## Published at

2025-06-11T23:20:33.108746Z

## Doi

https://doi.org/10.48505/nims.4725

## First published url

https://doi.org/10.1021/acsaem.4c01211

## Date published

2024-06-24

## Recorded date published

2024-6-24

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: An Electrically Conductive CuMn<sub>2</sub>O<sub>4</sub> Ultrananospinel
    Cathode for Room-Temperature Magnesium Rechargeable Batteries
  title_type: original
  lang: en

## Description

- description: Magnesium rechargeable batteries are potential successors to lithium-ion
    batteries owing to their low cost, superior safety, and high volumetric energy
    density. However, the development of high-energy and high-rate cathode materials
    remains challenging. Oxide-type cathodes, specifically spinels, have become a
    focus of attention due to their higher voltage operation capacity. Nevertheless,
    previous studies have predominantly centered on high-temperature operations on
    account of the sluggish diffusion of Mg ions in solids and low electrical conductivity.
    In this study, an electrically conductive CuMn2O4 ultrasmall (< 5 nm) spinel is
    fabricated using an alcohol reduction process. This ‘ultrananospinel’ shows a
    semi-reversible phase transition along with Mg insertion/ejection and a dual-redox
    system involving copper and manganese ions, exhibiting the high voltage operation
    (>1.5 V) with the theoretical discharge capacity of 225 mAh g–1, and high-rate
    capability.
  description_type: abstract
  lang: und

## Creator

- name: Reona Iimura
  role: author
- name: Hiroto Watanabe
  role: author
- name: Toshihiko Mandai
  role: author
  orcid: https://orcid.org/0000-0002-2403-7794
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Itaru Honma
  role: author
- name: Hiroaki Imai
  role: author
- name: Hiroaki Kobayashi
  role: author

## Contact agent



## Publisher

organization: American Chemical Society (ACS)

## Managing organization



## Keyword

- subject: spinel
  schema: not_defined
- subject: nanoparticles
  schema: not_defined
- subject: electrical conductivity
  schema: not_defined
- subject: cathode
  schema: not_defined
- subject: magnesium rechargeable battery
  schema: not_defined

## Rights

- description: This document is the Accepted Manuscript version of a Published Work
    that appeared in final form in ACS Applied Energy Materials, copyright © 2024
    American Chemical Society after peer review and technical editing by the publisher.
    To access the final edited and published work see https://doi.org/10.1021/acsaem.4c01211
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2024-06-12
end_date: 2025-06-12

## Journal

- title: ACS Applied Energy Materials
  issn: '25740962'
  volume: '7'
  issue: '12'
  start_page: 5308
  end_page: 5314

## Conference



## Related item



## Funding

- funder_name: Ministry of Education, Culture, Sports, Science and Technology
- funder_name: Light Metal Educational Foundation
- identifier: 23K1381603
  funder_name: Japan Society for the Promotion of Science
- identifier: JPMJGX23S1
  funder_name: Japan Science and Technology Agency
- identifier: JPMJAL1301
  funder_name: Advanced Low Carbon Technology Research and Development Program

## 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: 0e87c630-f0aa-4d44-982c-4e3ba4caef06
  filename: Mnspinel_manuscript_R1.docx
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
  size: 4499511
  md5: 071fccc91c71c2372817ccab9a0b0d83

## Thumbnail

fileset_id: 0e87c630-f0aa-4d44-982c-4e3ba4caef06
filename: Mnspinel_manuscript_R1.docx