# Hierarchically Porous and Minimally Stacked Graphene Cathodes for High‐Performance Lithium–Oxygen Batteries

https://mdr.nims.go.jp/datasets/7c63aa99-16fe-4553-8458-cf4a9aedf24a

## Files

- [Advanced Energy Materials - 2023 - Yu - Hierarchically Porous and Minimally Stacked Graphene Cathodes for High‐Performance (2).pdf](https://mdr.nims.go.jp/filesets/e20f8ad6-f9d1-4238-8bd6-e2cb17cde985/download) ([Detail](https://mdr.nims.go.jp/filesets/e20f8ad6-f9d1-4238-8bd6-e2cb17cde985.md))

## Id

7c63aa99-16fe-4553-8458-cf4a9aedf24a

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-06-19T03:01:57.362239Z

## Updated at

2024-06-19T23:30:29.184368Z

## Published at

2024-06-19T23:30:29.249809Z

## Doi



## First published url

https://doi.org/10.1002/aenm.202303055

## Date published

2023-11-10

## Recorded date published

2024-1

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Hierarchically Porous and Minimally Stacked Graphene Cathodes for High‐Performance
    Lithium–Oxygen Batteries
  title_type: original
  lang: en

## Description

- description: Although lithium–oxygen batteries have attracted attention due to their
    extremely high energy densities, rational design, and critical evaluation of high-energy-density
    cathode for practical Li–O2 batteries is still urgently needed. Herein, the multiscale,
    angstrom-to-millimeter, precisely controllable synthesis of binder-free cathodes
    with minimally stacked graphene free from edge sites is demonstrated. The proposed
    Li–O2 battery, based on a hierarchically porous cathode with a practical mass
    loading of >4.0 mg cm−2, simultaneously exhibits an unprecedented specific areal
    (>30.0 mAh cm−2), mass (>6300 mAh g−1), and volumetric (>480 mAh cm−3) capacities.
    The battery displays the optimal energy density of 793 Wh kg−1 critically normalized
    to the total mass of all active materials including electrolytes and even discharge
    products Li2O2. Comprehensive in situ characterizations demonstrate a unique discharge
    mechanism in hierarchical pores which contributes to competitive battery performance.
    Superior rate performance in a current density range of 0.1 to 0.8 mA cm−2 and
    long-cycle stability (>260 cycles) at a current density of 0.4 mA cm−2, outperforming
    state-of-the-art carbon cathodes. This study yields insight into next-generation
    carbon cathodes, not only for use in practical Li–O2 batteries, but also in other
    metal–gas batteries with high energy densities.
  description_type: abstract
  lang: und

## Creator

- name: Wei Yu
  role: author
- name: Zhaohan Shen
  role: author
- name: Takeharu Yoshii
  role: author
- name: Shinichiroh Iwamura
  role: author
- name: Manai Ono
  role: author
  orcid: https://orcid.org/0000-0003-4406-4113
  organization: National Institute for Materials Science
- name: Shoichi Matsuda
  role: author
  orcid: https://orcid.org/0000-0002-0640-3404
  organization: National Institute for Materials Science
- name: Makoto Aoki
  role: author
- name: Toshihiro Kondo
  role: author
- name: Shin R. Mukai
  role: author
- name: Shuji Nakanishi
  role: author
- name: Hirotomo Nishihara
  role: author

## Contact agent



## Publisher

organization: Wiley

## Managing organization



## Keyword

- subject: lithium oxygen battery
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Advanced Energy Materials
  issn: '16146832'
  volume: '14'
  issue: '2'
  article_number: '2303055'

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## Instrument



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## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



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## Fileset

- id: e20f8ad6-f9d1-4238-8bd6-e2cb17cde985
  filename: Advanced Energy Materials - 2023 - Yu - Hierarchically Porous and Minimally
    Stacked Graphene Cathodes for High‐Performance (2).pdf
  content_type: application/pdf
  size: 2583551
  md5: 96ed75185b9ada821522fcac551969f2

## Thumbnail

fileset_id: e20f8ad6-f9d1-4238-8bd6-e2cb17cde985
filename: Advanced Energy Materials - 2023 - Yu - Hierarchically Porous and Minimally
  Stacked Graphene Cathodes for High‐Performance (2).pdf