Dual Ion Co‐Insertion Induced Spontaneous and Reversible Phase Conversion Chemistry for Unprecedented Zn2+ Storage

Xikun Zhang; Junwei Zhang; Haoxiang Yu; Thomas L. Madanu; Maoting Xia; Pengcheng Xing; Alexandru Vlad; Jie Shu; Bao‐Lian Su

doi:10.1002/ange.202414479

journal article Nov 13, 2024

Dual Ion Co‐Insertion Induced Spontaneous and Reversible Phase Conversion Chemistry for Unprecedented Zn2+ Storage

Xikun Zhang Junwei Zhang

Haoxiang Yu Thomas L. Madanu Maoting Xia Pengcheng Xing Alexandru Vlad

Jie Shu

Bao‐Lian Su

Angewandte Chemie Vol. 137 No. 2 · Wiley

View at Publisher Save 10.1002/ange.202414479

Abstract

AbstractPrussian blue analogues are highly promising electrode materials due to their versatile electrochemical activity and low cost. However, they often suffer from severe structural damage caused by the Jahn–Teller distortion and dissolution of high‐spin outer metal ions, resulting in poor cycle life. Material modification and electrolyte regulation have been the common approaches to address this issue, albeit with very limited success. We report here a novel and efficient strategy to preserve structural stability by co‐inserting Co2+ and Zn2+ ions in KCo[Fe(CN)6]. This co‐insertion induced a spontaneous and reversible phase conversion by the replacement of low‐spin inner ion (Fe3+), which efficiently relieves structural damage caused by Jahn–Teller distortion and metal‐ion dissolution, leading to an outstanding Zn2+ storage capacity and an exceptional improvement of cycle life with a capacity retention of 97.7 % over 4400 cycles at 40 C. We also demonstrated the enhancement of co‐intercalation on ion migration using a combined approach of experimental and density functional theory (DFT) calculations. This work provides an important progress to solve the cycle stability of Prussian blue analogues towards their practical application as electrode materials for aqueous batteries.

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Deposition numbers 1603712 (forK2Co[Fe(CN)6]) and 1635810 (forZn3[Co(CN)6]2) contain the supplementary crystallographic data for this paper. These data are provided free of charge by the joint Cambridge Crystallographic Data Centre and Fachinformationszentrum Karlsruhe Access Structures service. The crystallographic data can also be found at the National Center for Biotechnology Information of Americahttps://pubchem.ncbi.nlm.nih.gov/compound. PubChem CIDs 129675076 (forKCo[Fe(CN)6]) 171039961 (forK2Co[Fe(CN)6]) and 129635807 (forZn3[Co(CN)6]2).

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Details

Published: Nov 13, 2024
Vol/Issue: 137(2)
License: View

Authors

X

Xikun Zhang

School of Materials Science and Chemical Engineering Ningbo University 818 Fenghua road Ningbo Zhejiang 315211 China; Laboratory of Inorganic Materials Chemistry (CMI) University of Namur 61 rue de Bruxelles Namur B-5000 Belgium

J

Junwei Zhang

School of Materials Science and Chemical Engineering Ningbo University 818 Fenghua road Ningbo Zhejiang 315211 China

H

Haoxiang Yu

School of Materials Science and Chemical Engineering Ningbo University 818 Fenghua road Ningbo Zhejiang 315211 China

T

Thomas L. Madanu

Laboratory of Inorganic Materials Chemistry (CMI) University of Namur 61 rue de Bruxelles Namur B-5000 Belgium

M

Maoting Xia

School of Materials Science and Chemical Engineering Ningbo University 818 Fenghua road Ningbo Zhejiang 315211 China

P

Pengcheng Xing

Laboratory of Inorganic Materials Chemistry (CMI) University of Namur 61 rue de Bruxelles Namur B-5000 Belgium

A

Alexandru Vlad

Institute of Condensed Matter and Nanosciences Molecular Chemistry Materials and Catalysis Université Catholique de Louvain Louvain-la-Neuve B-1348 Belgium

J

Jie Shu

School of Materials Science and Chemical Engineering Ningbo University 818 Fenghua road Ningbo Zhejiang 315211 China

B

Bao‐Lian Su

Laboratory of Inorganic Materials Chemistry (CMI) University of Namur 61 rue de Bruxelles Namur B-5000 Belgium; State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology 122 Luoshi road Wuhan Hubei 430070 China; Clare Hall University of Cambridge Cambridge CB2 1EW UK

Funding

National Natural Science Foundation of China Award: U2330205, U1830106, U1663225

National Key Research and Development Program of China Award: 2021YFE0115800

Natural Science Foundation of Ningbo Municipality Award: 2022J064

Cite This Article

Xikun Zhang, Junwei Zhang, Haoxiang Yu, et al. (2024). Dual Ion Co‐Insertion Induced Spontaneous and Reversible Phase Conversion Chemistry for Unprecedented Zn2+ Storage. Angewandte Chemie, 137(2). https://doi.org/10.1002/ange.202414479

Dual Ion Co‐Insertion Induced Spontaneous and Reversible Phase Conversion Chemistry for Unprecedented Zn2+ Storage

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