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Comprehensive understanding of the roles of water molecules in aqueous Zn-ion batteries: from electrolytes to electrode materials
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TLDR
In this article, the role of water molecules in rechargeable aqueous Zn-ion batteries (AZIBs) has been discussed from the perspective of the electrolyte, Zn anode, and cathode materials.Abstract:
Benefiting from loose assembly conditions, a high level of safety and environmentally friendly characteristics, rechargeable aqueous Zn-ion batteries (AZIBs) have attracted significant attention. The electrochemical kinetics and performance of the AZIBs are greatly affected by water in electrolytes or electrode materials. The corrosion and passivation of the Zn electrode caused by the inevitable solvation process of water molecules can lead to the growth of dendrites, thus resulting in a limited cycle life. Moreover, water in the electrode material, whether in the form of structural water or co-intercalated hydrated cations, can greatly affect the electrochemical behavior due to its small size, high polarity and hydrogen bonding. Unlike previous reports, this review focuses on the roles of water molecules during electrochemical processes in AZIBs. We comprehensively summarize the influencing mechanisms of water molecules during the energy storage process from the perspectives of the electrolyte, Zn anode, and cathode materials, and further include the basic theory, modification methods, and practical applications. The mystery concerning the water molecules and the electrochemical performance of AZIBs is revealed herein, and we also propose novel insights and actionable methods regarding the potential future directions in the design of high-performance AZIBs.read more
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Electrolyte/electrode interfacial electrochemical behaviors and optimization strategies in aqueous zinc-ion batteries
TL;DR: In this article , the authors focus on the characteristics and formation mechanism of EEI, the various ionic electrochemical behaviors at EEI and interfacial optimization strategies on cathode and anode.
Journal ArticleDOI
Monosodium Glutamate, an Effective Electrolyte Additive to Enhance Cycling Performance of Zn Anode in Aqueous Battery
Yun Zhong,Zexiao Cheng,Huangwei Zhang,Jianbo Li,Dongdong Liu,Yaqi Liao,Jintao Meng,Yue Shen,Yunhui Huang +8 more
TL;DR: In this article , a monosodium glutamate (MSG) electrolyte additive is introduced to reconstruct the Zn anode/electrolyte interface and suppress Zn dendrite growth as well as H 2 evolution.
Journal ArticleDOI
Organics Intercalation into Layered Structures Enables Superior Interface Compatibility and Fast Charge Diffusion for Dendrite-Free Zn Anodes
Huili Peng,Changhui Liu,Nana Wang,Chenggang Wang,Dongdong Wang,Yanlu Li,Bo Chen,Jian Yang,Yitai Qian +8 more
TL;DR: In this paper , the authors used hydrophobic polymers and ion-conductive inorganics as an artificial artificial anode for zinc anode in aqueous batteries.
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
A Functional Organic Zinc-Chelate Formation with Nanoscaled Granular Structure Enabling Long-Term and Dendrite-Free Zn Anodes.
TL;DR: In this article , a highly antiwater Znx-diethylenetriaminepenta (methylene-phosphonic acid) interface layer with good zinc affinity and a special nanoscaled 3D granular structure is designed on Zn metal to address the problems.
References
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