Synchronous electrolyte design for static aqueous zinc-halogen batteries

Rechargeable static aqueous zinc-halogen batteries (AZHBs) thrive in energy storage applications due to their suitable redox potential, abundant reserves, and relatively high energy density. This non-flow battery relies on the collaboration of the reversible stripping/plating process of Zn metal and...

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Main Authors: Xiao, Tao, Yang, Jin-Lin, Chao, Dongliang, Fan, Hong Jin
Other Authors: School of Physical and Mathematical Sciences
Format: Journal Article
Language:English
Published: 2025
Subjects:
Online Access:https://hdl.handle.net/10356/182655
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author Xiao, Tao
Yang, Jin-Lin
Chao, Dongliang
Fan, Hong Jin
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Xiao, Tao
Yang, Jin-Lin
Chao, Dongliang
Fan, Hong Jin
author_sort Xiao, Tao
collection NTU
description Rechargeable static aqueous zinc-halogen batteries (AZHBs) thrive in energy storage applications due to their suitable redox potential, abundant reserves, and relatively high energy density. This non-flow battery relies on the collaboration of the reversible stripping/plating process of Zn metal and the halogen-participating zincation reactions. However, the corrosion of Zn metal and the shuttling of the halogen species result in serious capacity decay, posing challenges to their reversibility and lifespan. Moreover, the instability of high-valent halides hinders the implementation of multi-electron reactions in AZHBs. This Review elaborates the fundamentals, challenges, and recent progress in AZHBs, highlighting the significance of the electrolyte design aiming at synchronous optimization for both the halogen cathode and Zn anode in AZHBs. We discuss the design principles and protocols, along with concerns in effective test and evaluation of synchronous electrolytes. Possible approaches towards synchronous electrolytes are proposed, namely, biphasic electrolytes, gradient hydrogel electrolytes, and ionic liquid electrolytes. This Review may help guide the research in achieving AZHBs with high energy density and longevity for practical applications.
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spelling ntu-10356/1826552025-02-17T15:36:08Z Synchronous electrolyte design for static aqueous zinc-halogen batteries Xiao, Tao Yang, Jin-Lin Chao, Dongliang Fan, Hong Jin School of Physical and Mathematical Sciences Physics Zn metal Aqueous batteries Rechargeable static aqueous zinc-halogen batteries (AZHBs) thrive in energy storage applications due to their suitable redox potential, abundant reserves, and relatively high energy density. This non-flow battery relies on the collaboration of the reversible stripping/plating process of Zn metal and the halogen-participating zincation reactions. However, the corrosion of Zn metal and the shuttling of the halogen species result in serious capacity decay, posing challenges to their reversibility and lifespan. Moreover, the instability of high-valent halides hinders the implementation of multi-electron reactions in AZHBs. This Review elaborates the fundamentals, challenges, and recent progress in AZHBs, highlighting the significance of the electrolyte design aiming at synchronous optimization for both the halogen cathode and Zn anode in AZHBs. We discuss the design principles and protocols, along with concerns in effective test and evaluation of synchronous electrolytes. Possible approaches towards synchronous electrolytes are proposed, namely, biphasic electrolytes, gradient hydrogel electrolytes, and ionic liquid electrolytes. This Review may help guide the research in achieving AZHBs with high energy density and longevity for practical applications. Ministry of Education (MOE) National Research Foundation (NRF) Submitted/Accepted version This work was supported by the Singapore Ministry of Education by Tier 2 (MOE-T2EP50121-0006) and the National Research Foundation, Singapore, under its Singapore-China Joint Flagship Project (Clean Energy). 2025-02-14T07:08:12Z 2025-02-14T07:08:12Z 2025 Journal Article Xiao, T., Yang, J., Chao, D. & Fan, H. J. (2025). Synchronous electrolyte design for static aqueous zinc-halogen batteries. National Science Review. https://dx.doi.org/10.1093/nsr/nwaf029 2095-5138 https://hdl.handle.net/10356/182655 10.1093/nsr/nwaf029 en MOE-T2EP50121-0006 National Science Review © 2025 The Author(s). Published by Oxford University Press on behalf of China Science Publishing & Media Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. application/pdf
spellingShingle Physics
Zn metal
Aqueous batteries
Xiao, Tao
Yang, Jin-Lin
Chao, Dongliang
Fan, Hong Jin
Synchronous electrolyte design for static aqueous zinc-halogen batteries
title Synchronous electrolyte design for static aqueous zinc-halogen batteries
title_full Synchronous electrolyte design for static aqueous zinc-halogen batteries
title_fullStr Synchronous electrolyte design for static aqueous zinc-halogen batteries
title_full_unstemmed Synchronous electrolyte design for static aqueous zinc-halogen batteries
title_short Synchronous electrolyte design for static aqueous zinc-halogen batteries
title_sort synchronous electrolyte design for static aqueous zinc halogen batteries
topic Physics
Zn metal
Aqueous batteries
url https://hdl.handle.net/10356/182655
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AT yangjinlin synchronouselectrolytedesignforstaticaqueouszinchalogenbatteries
AT chaodongliang synchronouselectrolytedesignforstaticaqueouszinchalogenbatteries
AT fanhongjin synchronouselectrolytedesignforstaticaqueouszinchalogenbatteries