# Coordination Nanosheet-Based Electrochromic Supercapacitor with High Energy Storage, Switching Durability, and Long Optical Memory Properties

https://mdr.nims.go.jp/datasets/bb617a95-5992-4f27-b65a-aa7639a42761

## File

- [coordination-nanosheet-based-electrochromic-supercapacitor-with-high-energy-storage-switching-durability-and-long.pdf](https://mdr.nims.go.jp/filesets/c2495f8a-9c8e-43f9-a1ad-4fad98944a61/download) ([Detail](https://mdr.nims.go.jp/filesets/c2495f8a-9c8e-43f9-a1ad-4fad98944a61.md))

## Id

bb617a95-5992-4f27-b65a-aa7639a42761

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-12-31T12:06:04.483181Z

## Updated at

2026-01-05T23:52:45.390599Z

## Published at

2026-01-06T03:19:36.883964Z

## Doi



## First published url

https://doi.org/10.1021/acsami.5c13795

## Date published

2025-11-12

## Recorded date published

2025-11-12

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Coordination Nanosheet-Based Electrochromic Supercapacitor with High Energy
    Storage, Switching Durability, and Long Optical Memory Properties
  title_type: original
  lang: en

## Description

- description: "Electrochromic (EC) supercapacitors have attracted considerable attention
    as energy storage systems integrated with optical functions. EC supercapacitors
    with high-performance and long-term optical memory properties were successfully
    fabricated by a combination of coordination nanosheets (CONASH), composed of Fe(II)
    ions and a tristerpyridine ligand having a nonconjugated linker, and nickel hexacyanoferrate
    (NiHCF) as a redox-complementary counter material. The EC supercapacitor exhibited
    EC changes between purple and pale yellow with large optical contrast (57.4% at
    556 nm), short switching times (1.28/1.69 s), exceptionally high coloration efficiency
    (619 cm2 C−1), significantly small energy consumption (3.6 mJ/cm2\r\n), and excellent
    EC switching stability of more than 50,000 cycles. The EC supercapacitor also
    demonstrated high volumetric capacitance (248.1 F/cm3), energy density (29.37
    mW h/cm3), and power density (7.5 W/cm3 ), maintaining stable performance over
    40,000 galvanostatic charge−discharge cycles. Most notably, the device showed
    a drastically reduced self-discharge property as only 33% optical contrast was
    returned after 36 h under open-circuit conditions, paving the way for an efficient
    energy storage solution by exploiting the long optical memory of the device. Combining
    superior EC functionality with robust supercapacitive performance, this study
    offers a foundation for sustainable energy technology."
  description_type: abstract
  lang: und

## Creator

- name: Susmita Roy
  role: author
  organization: National Institute for Materials Science
- name: Sayan Halder
  role: author
- name: Sarda Sharma
  role: author
- name: Karumbaiah N. Chappanda
  role: author
- name: Chanchal Chakraborty
  role: author
  orcid: https://orcid.org/0000-0002-4829-1367
  organization: National Institute for Materials Science
- name: Masayoshi Higuchi
  role: author
  orcid: https://orcid.org/0000-0001-9877-1134
  organization: National Institute for Materials Science

## Contact agent



## Publisher

organization: American Chemical Society (ACS)

## Managing organization



## Keyword

- subject: Coordination Nanosheet
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/
  date_licensed: 2025-10-29

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: ACS Applied Materials & Interfaces
  issn: '19448252'
  volume: '17'
  issue: '45'
  start_page: 62499
  end_page: 62509

## Conference



## Related item



## Funding

- identifier: JPMJMI21I4
  funder_name: JST-Mirai Program
- identifier: CRG/2023/002310
  funder_name: Science and Engineering Research Board
- identifier: JPMEERF20221M02
  funder_name: Environmental Restoration and Conservation 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: c2495f8a-9c8e-43f9-a1ad-4fad98944a61
  filename: coordination-nanosheet-based-electrochromic-supercapacitor-with-high-energy-storage-switching-durability-and-long.pdf
  content_type: application/pdf
  size: 4413032
  md5: 9416f4777b993132649c613a2d68bed4

## Thumbnail

fileset_id: c2495f8a-9c8e-43f9-a1ad-4fad98944a61
filename: coordination-nanosheet-based-electrochromic-supercapacitor-with-high-energy-storage-switching-durability-and-long.pdf