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Zinc-Sponge Battery Electrodes that Suppress Dendrites

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Published on: September 29, 2020

Functional Hydrogels for Aqueous Zinc-Based Batteries: Progress and Perspectives.

Lei Mao¹, Guanjie Li¹, Binwei Zhang^2,3

¹School of Chemical Engineering, Faculty of Sciences, Engineering and Technology, The University of Adelaide, Adelaide, SA, 5005, Australia.

Advanced Materials (Deerfield Beach, Fla.)

|December 11, 2024

Summary

Functional hydrogels offer a promising solution for advancing aqueous zinc batteries (AZBs) by addressing electrode, electrolyte, and interface challenges. This review summarizes hydrogel properties, modification strategies, and future directions for grid-scale energy storage.

Keywords:

aqueous zinc‐batteries full life cycle hydrogels interface multifunctionality

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Last Updated: Jun 5, 2025

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Area of Science:

Materials Science
Electrochemistry
Energy Storage

Background:

Aqueous zinc batteries (AZBs) are promising for grid-scale energy storage due to cost-effectiveness, safety, and eco-friendliness.
Practical AZB deployment faces hurdles in electrode, electrolyte, and interface performance.
Functional hydrogels present a viable solution with tunable properties and electrochemical stability.

Purpose of the Study:

To review essential properties of functional hydrogels for AZB advancement.
To explore modification strategies for enhancing hydrogel properties and AZB performance.
To discuss challenges and future directions for industrial AZB implementation.

Main Methods:

Literature review of functional hydrogels in aqueous zinc batteries.
Analysis of hydrogel properties: mechanical strength, ionic conductivity, swelling, and degradability.
Exploration of modification techniques and integration strategies.

Main Results:

Key hydrogel properties crucial for AZB performance across their lifecycle are identified.
Current strategies for improving hydrogel properties and AZB performance are summarized.
Challenges in hydrogel-electrode/interface integration are discussed.

Conclusions:

Functional hydrogels are critical for overcoming AZB limitations.
Further research and development are needed to bridge the gap between lab-scale findings and industrial application of AZBs.
Hydrogel design must consider the full lifecycle for sustainable energy storage solutions.