Journal
ESCIENCE
Volume 2, Issue 5, Pages 453-466Publisher
KEAI PUBLISHING LTD
DOI: 10.1016/j.esci.2022.08.004
Keywords
Zinc-air batteries; Electrolytes; Interface; Polymers; Gels
Funding
- National Natural Science Foundation of China [22075092]
- Innovation and Talent Recruitment Base of New Energy Chemistry and Device [B21003]
- Research Office of The Hong Kong Polytechnic University [1-BBXK, 1-BE3M]
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Polymer-based electrolytes play a critical role in zinc-air batteries, improving their performance. This article reviews the recent progress in polymer-based electrolytes for zinc-air batteries and proposes future challenges and viable strategies.
Zinc-air batteries (ZABs) are expected to be some of the most promising power sources for wearable and portable electronic devices and have received widespread research interest. As an ion conductor connecting anodes and cathodes, the electrolyte is critical for the overall performance of ZABs (e.g., energy density, rechargeability, and operating voltage). Compared with liquid electrolytes, polymer-based electrolytes have superior characteristics for ZABs, such as negligible electrolyte leakage, three-phase interface stabilization, and dendrite suppression. In this perspective, we focus on recent progress in polymer-based electrolytes for ZABs. After a brief introduction to ZABs and electrolytes, we emphasize the development of polymer-based electrolytes in terms of their intrinsic properties and interfacial chemistry. Finally, challenges and viable strategies are proposed for polymer-based electrolytes in ZABs. We hope that this work will provide useful guidance to spur the development of highperformance ZABs based on advanced polymer-based electrolytes.
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