# New Template Synthesis of Anomalously Large Capacity Hard Carbon for Na‐ and K‐Ion Batteries

https://mdr.nims.go.jp/datasets/51ce52b9-3c9e-4bb6-8795-e471a2a83458

## File

- [Advanced Energy Materials - 2023 - Igarashi - New Template Synthesis of Anomalously Large Capacity Hard Carbon for Na‐ and.pdf](https://mdr.nims.go.jp/filesets/b4fc1aa3-2c9e-4257-bcf7-4b0f72e3067f/download) ([Detail](https://mdr.nims.go.jp/filesets/b4fc1aa3-2c9e-4257-bcf7-4b0f72e3067f.md))

## Id

51ce52b9-3c9e-4bb6-8795-e471a2a83458

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-01-07T04:45:03.725022Z

## Updated at

2025-01-08T07:30:48.317859Z

## Published at

2025-01-08T07:30:48.398559Z

## Doi



## First published url

https://doi.org/10.1002/aenm.202302647

## Date published

2023-11-09

## Recorded date published

2023-12

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: New Template Synthesis of Anomalously Large Capacity Hard Carbon for Na‐
    and K‐Ion Batteries
  title_type: original
  lang: en

## Description

- description: Hard carbon (HC) is a promising negative-electrode material for Na-ion
    batteries. HC electrochemically store Na+ ions, resulting in a non-stoichiometric
    chemical composition depending on their nanoscale structure, including the carbon
    framework and interstitial pores. Therefore, optimizing these structures for Na
    storage by altering the synthesis conditions can enhance the capacity of Na-ion
    batteries. In this study, HCs using MgO, ZnO, and CaCO3 as nanopore templates
    are systematically investigated, and the ZnO template is found to be particularly
    effective. By optimizing the concentration of ZnO embedded in the carbon matrix,
    utilizing a blend of zinc gluconate and zinc acetate as starting materials, the
    optimal ZnO-template HC demonstrated a reversible capacity of 464 mAh g-1 (corresponding
    to NaC4.8) with high initial Coulombic efficiency of 91.7% and low average potential
    of 0.18 V vs. Na+/Na. Thus, a Na-ion battery full cell consisting of Na5/6Ni1/3Fe1/6Mn1/6Ti1/3O2
    and the optimized ZnO-template HC demonstrated a remarkable energy density of
    312 Wh kg-1, comparable to that of a Li-ion battery with LiFePO4 and graphite.
    Moreover, the ZnO-template HC in a K half-cell also displayed a significant capacity
    of 381 mAh g-1, that is, KC5.8 where the alkali content are higher than stage-1
    graphite intercalation compounds, LiC6 and KC8.
  description_type: abstract
  lang: und

## Creator

- name: Daisuke Igarashi
  role: author
- name: Yoko Tanaka
  role: author
- name: Kei Kubota
  role: author
  orcid: https://orcid.org/0000-0001-8941-3650
  organization: National Institute for Materials Science
- name: Ryoichi Tatara
  role: author
- name: Hayato Maejima
  role: author
- name: Tomooki Hosaka
  role: author
- name: Shinichi Komaba
  role: author

## Contact agent



## Publisher

organization: Wiley

## Managing organization



## Keyword

- subject: Na-ion batteries
  schema: not_defined
- subject: K-ion batteries
  schema: not_defined
- subject: Hard carbon
  schema: not_defined
- subject: Anode materials
  schema: not_defined
- subject: Nanopores
  schema: not_defined
- subject: Template synthesis
  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: '13'
  issue: '47'
  article_number: '2302647'

## Conference



## Related item



## Funding

- identifier: JP20H02849
  funder_name: Japan Society for the Promotion of Science
- identifier: JP21K14724
  funder_name: Japan Society for the Promotion of Science
- identifier: JP21K20561
  funder_name: Japan Society for the Promotion of Science
- identifier: JP22K14772
  funder_name: Japan Society for the Promotion of Science
- identifier: JP23K13829
  funder_name: Japan Society for the Promotion of Science
- identifier: JPNP20004
  funder_name: New Energy and Industrial Technology Development Organization
- identifier: JPMJFS2144
  funder_name: Japan Science and Technology Agency
- identifier: JPMJCR21O6
  funder_name: Japan Science and Technology Agency
- identifier: JPMXP 1122712807
  funder_name: Ministry of Education, Culture, Sports, Science and Technology

## 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



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## Custom property



## Fileset

- id: b4fc1aa3-2c9e-4257-bcf7-4b0f72e3067f
  filename: Advanced Energy Materials - 2023 - Igarashi - New Template Synthesis of
    Anomalously Large Capacity Hard Carbon for Na‐ and.pdf
  content_type: application/pdf
  size: 3883110
  md5: 491e32ec2a4a2d7ec453ea2d10513791

## Thumbnail

fileset_id: b4fc1aa3-2c9e-4257-bcf7-4b0f72e3067f
filename: Advanced Energy Materials - 2023 - Igarashi - New Template Synthesis of
  Anomalously Large Capacity Hard Carbon for Na‐ and.pdf