# Interconnected Hierarchically Porous Graphene‐Based Membrane Electrode for High‐Power and Long‐Cycle Lithium–Oxygen Battery

https://mdr.nims.go.jp/datasets/6eaf1008-8f40-4f63-9a6e-4bf69ced4dcb

## File

- [Advanced Science - 2025 - Dutta - Interconnected Hierarchically Porous Graphene‐Based Membrane Electrode for High‐Power and.pdf](https://mdr.nims.go.jp/filesets/df36433a-e235-434a-820e-d8afb23d4540/download) ([Detail](https://mdr.nims.go.jp/filesets/df36433a-e235-434a-820e-d8afb23d4540.md))

## Id

6eaf1008-8f40-4f63-9a6e-4bf69ced4dcb

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-02-17T00:23:19.851331Z

## Updated at

2026-02-18T07:30:04.375611Z

## Published at

2026-02-18T03:58:34.640607Z

## Doi



## First published url

https://doi.org/10.1002/advs.202519091

## Date published

2025-12-01

## Recorded date published

2026-2

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Interconnected Hierarchically Porous Graphene‐Based Membrane Electrode for
    High‐Power and Long‐Cycle Lithium–Oxygen Battery
  title_type: original
  lang: en

## Description

- description: The energy–power trade-off in lithium–oxygen batteries (LOBs) arises
    from sluggish oxygen (O2) transport in the porous positive electrode and pore
    clogging by lithium peroxide (Li2O2). While increasing porosity enhances electrolyte
    accessibility and Li2O2 storage, it also increases electrolyte demand, compromising
    the overall energy density of the cell and necessitating alternative strategies
    to boost power capabilities without sacrificing energy density. In this study,
    theoretical simulations of O2 transport reveal that reducing tortuosity by improving
    pore interconnectivity has a more significant impact on O2 transport than porosity
    itself. Based on this insight, a freestanding graphene-based electrode with a
    highly interconnected macroporous network is fabricated via a non-solvent-induced
    phase separation approach using polyacrylonitrile (PAN) as a carbon scaffold and
    polyethylene oxide (PEO) as a sacrificial porogen. The selective decomposition
    of PEO creates spatially interconnected macropores, effectively reducing tortuosity.
    The resulting electrode enables LOB cells to achieve >2500 mAh g−1 at 1.0 mA cm−2
    under lean-electrolyte conditions. Stable cycling at 4 mAh cm−2 is maintained
    with only 3.25 g Ah−1 electrolyte, and high-rate performance persists over 90
    cycles at 1.5 mA cm−2. This work demonstrates a robust strategy to simultaneously
    improve energy and power performance in practical LOBs through rational electrode
    architecture.
  description_type: abstract
  lang: und

## Creator

- name: Arghya Dutta
  role: author
  orcid: https://orcid.org/0000-0002-3769-7820
- name: Takashi Kameda
  role: author
  orcid: https://orcid.org/0000-0003-2080-3540
- name: Taiga Ozawa
  role: author
  orcid: https://orcid.org/0009-0004-5608-8520
- name: Anna Myojin
  role: author
- name: Minako Nishioka
  role: author
- name: Wei Yu
  role: author
- name: Hirotomo Nishihara
  role: author
- name: Shoichi Matsuda
  role: author
  orcid: https://orcid.org/0000-0002-0640-3404

## Contact agent



## Publisher

organization: Wiley

## Managing organization



## Keyword

- subject: lithium-oxygen battery
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Advanced Science
  issn: '21983844'
  volume: '13'
  issue: '9'
  article_number: e19091

## Conference



## Related item



## Funding

- identifier: JPMJAL1301
  funder_name: Japan Science and Technology Agency
- funder_name: National Institute for Materials Science
- identifier: JP24K08590
  funder_name: Japan Society for the Promotion of Science

## Instrument



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## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



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## Fileset

- id: df36433a-e235-434a-820e-d8afb23d4540
  filename: Advanced Science - 2025 - Dutta - Interconnected Hierarchically Porous
    Graphene‐Based Membrane Electrode for High‐Power and.pdf
  content_type: application/pdf
  size: 2663953
  md5: ee3090fac8fc7d9155d99e63fc8117fa

## Thumbnail

fileset_id: df36433a-e235-434a-820e-d8afb23d4540
filename: Advanced Science - 2025 - Dutta - Interconnected Hierarchically Porous Graphene‐Based
  Membrane Electrode for High‐Power and.pdf