Journal ArticleDOI
Development of solid electrolytes in Zn–air and Al–air batteries: from material selection to performance improvement strategies
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TLDR
In this article, the authors provide a guiding and comprehensive summary of the basic understanding and manufacturing ideas of the solid electrolyte for Zn-air and Al-air batteries, as well as challenges and prospects for the future development of alkaline solid electrolytes.Abstract:
Aqueous-based Zn–air and Al–air batteries are considered to be promising post-lithium energy storage technologies owing to their safety, environmental friendliness, affordability, and high energy density. Nevertheless, traditional liquid Zn–air and Al–air batteries have problems such as volatilization and leakage, as well as the realization of miniaturized, portable, and wearable electronic devices. The practice of optimizing the battery structure by replacing the flowing electrolyte with a solid type has emerged and made significant progress in the past ten years. Herein, this review provides a guiding and comprehensive summary of the basic understanding and manufacturing ideas of the solid electrolyte for Zn–air and Al–air batteries. First, two types of alkaline solid electrolytes are distinguished, including alkaline anion exchange membranes (AAEMs) and gel polymer electrolytes (GPEs). Then, three sorts of major framework materials (i.e., artificial organic polymer, biomass materials, and inorganic materials) are reviewed and discussed. Most importantly, the latest research progress and improvement strategies to enhance the electrolyte membrane performances involving conductivity, mechanical properties, and electrochemical stability are also highlighted. Finally, challenges and prospects for the future development of alkaline solid electrolytes are emphasized.read more
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Journal ArticleDOI
Multi-Functional Hydrogels for Flexible Zinc-Based Batteries Working under Extreme Conditions
Siyuan Zhao,Siyuan Zhao,Siyuan Zhao,Yayu Zuo,Tong Liu,Zhai Shuo,Yawen Dai,Zengjia Guo,Yang Wang,Qijiao He,Lingchao Xia,Chunyi Zhi,Jinhye Bae,Keliang Wang,Meng Ni +14 more
An extremely safe and wearable solid state zinc ion battery
Hongfei Li,Chingyin (溫靖賢) Wan +1 more
TL;DR: Wang et al. as mentioned in this paper won the Third Prize ( Category: Innovation) in the "Challenge Cup" National Competition -Hong Kong Regional Final, Hong Kong University Student Innovation and Entrepreneurship Competition 2017 organized by the Hong Kong New Generation Cultural Association.
Journal ArticleDOI
Roadmap on the protective strategies of zinc anodes in aqueous electrolyte
Soledad Pérez-Abadín Barro,Chaowei Li,Litong Wang,G. N. Hawker,Zhang Jingchao,Zhang Daojun,Jimin Du,Yagang Yao,Yagang Yao,Guo Hong +9 more
TL;DR: In this article, the fundamental reactions of Zn anodes in both alkaline and neutral electrolytes were elucidated in detail, including surface passivation, dendritic growth, hydrogen evolution, and shape change in the Zn stripping/plating procedure.
Journal ArticleDOI
Roadmap on the protective strategies of zinc anodes in aqueous electrolyte
TL;DR: In this article , the fundamental reactions of Zn anodes in both alkaline and neutral electrolytes were elucidated in detail, including surface passivation, dendritic growth, hydrogen evolution, and shape change in the Zn stripping/plating procedure.
Journal ArticleDOI
All-in-one and bipolar-membrane-free acid-alkaline hydrogel electrolytes for flexible high-voltage Zn-air batteries
TL;DR: In this article, a membrane-free acid-alkaline flexible electrolyte based on thermo-reversible Pluronic® F127 hydrogels was proposed for wearable electronics, where the acid and alkaline can be decoupled but integrated simultaneously in one hydrogel.
References
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Journal ArticleDOI
Zinc electrode with reduced dendritic propagation
TL;DR: In this paper, a microporous separator was used to substitute rayon-type separator during discharge of zinc anode alkaline accumulators, while the same accumulator was charged mainly through rayon type separator.
Journal ArticleDOI
Solid state, dry zinc/MCM-41/air cell as relative humidity sensor
TL;DR: In this article, a zinc-air cell utilizing an inorganic MCM-41 membrane separator, in its dry form, reveals a unique behavior in response to relative humidity variation.