Reshaping Zinc Plating/Stripping Behavior by Interfacial Water Bonding for High-Utilization-Rate Zinc Batteries

Reshaping Zinc Plating/Stripping Behavior by Interfacial Water Bonding for High-Utilization-Rate Zinc Batteries

© 2023 Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 35(2023), 49 vom: 01. Dez., Seite e2303550
1. Verfasser: Yang, Xin (VerfasserIn)
Weitere Verfasser: Zhang, Ziyi, Wu, Meiling, Guo, Zai-Ping, Zheng, Zi-Jian
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2023
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article Zn anode Zn utilization rate bacterial cellulose hydrogel electrolyte water bonding
Beschreibung
Zusammenfassung:© 2023 Wiley-VCH GmbH.
Aqueous zinc batteries have emerged as promising energy storage devices; however, severe parasitic reactions lead to the exacerbated production of Zn dendrites that decrease the utilization rate of Zn anodes. Decreasing the electrolyte content and regulating the water activity are efficient means to address these issues. Herein, this work shows that limiting the aqueous electrolyte and bonding water to bacterial cellulose (BC) can suppress side reactions and regulate stable Zn plating/stripping. This approach makes it possible to use less electrolyte and limited Zn foil. A symmetric Zn cell assembles with the hydrogel electrolyte with limited electrolyte (electrolyte-to-capacity ratio E/C = 1.0 g (Ah)-1 ) cycled stably at a current density of 6.5 mA cm-2 and achieved a capacity of 6.5 mA h cm-2 and depth of discharge of 85%. Full cells with the BC hydrogel electrolyte delivers a discharge capacity of 212 mA h cm-2 and shows a capacity retention of 83% after 1000 cycles at 5 A g-1 . This work offers new fundamental insights into the effect of restricting water to reshape the Zn plating/stripping process and provides a route for designing novel hydrogel electrolytes to better stabilize and efficiently utilize the Zn anodes
Beschreibung:Date Revised 08.12.2023
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.202303550