Journal Article

FZJ-2026-00904

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Hydrogen-Bond Network-Mediated Solvation Engineering Enables Synchronous Optimization of Zinc Anodes Kinetics and Iodine Cathodes Redox

Wu, T. ; Xi, M. ; Huang, Y. (Corresponding author) ; Chen, X. (Corresponding author)FZJ* ; Durmus, Y. E.FZJ* ; Zhang, H. ; Ding, J. ; Tempel, H.FZJ* ; Eichel, R.-A.FZJ*RWTH* ; Tan, Z. (Corresponding author)

2025
Wiley-VCH Weinheim

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Please use a persistent id in citations: doi:10.1002/adfm.202507187

Abstract: The stability and durability of Zn anodes are compromised by the synergisticeffects of H2O-mediated side reactions, unstable interfacial charge transfer,electrolyte decomposition, and dendrite formation induced by the space-chargelayer. To overcome these challenges, a polypeptide additive, fish scale protein(FSP), with diverse surface morphology, is introduced to strengthen the stabilityof Zn anodes through multilevel regulation. Comprehensive studies integratingstructural characterizations, first-principles calculations, and moleculardynamics simulations reveal that this strategy reconstructs the hydrogen-bond(HB) network within the electrolyte, thereby reducing the activity of free H2O,enhancing thermodynamic stability, and accelerating charge-transfer kineticsin Zn anodes. Moreover, the modified electrolyte suppresses the Grotthussproton conduction mechanism, significantly impeding proton transportto the Zn surface and attenuating the kinetics of the HER. Therefore,the Zn anodes exhibit excellent cycling stability (4200 h). Furthermore,the Zn||CPC ZHSCs with FSP demonstrate stable cycling over 35 000cycles. Additionally, the interaction between FSP and polyiodide eliminates theshuttle effect of polyiodides, enabling Zn─I2batteries with exceptional cyclingstability under high-load conditions (8.4 mg I2loading, 4000 stable cycles).This coordinates a multi-level control strategy, which provides a promisingstrategy for developing highly stable Zn anodes, ZHSCs, and Zn─I2batteries.

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Contributing Institute(s):

1. Grundlagen der Elektrochemie (IET-1)

Research Program(s):

1. 1223 - Batteries in Application (POF4-122) (POF4-122)

Appears in the scientific report 2025

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Database coverage:
; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; DEAL Wiley ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 15 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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