Isoquinoline as an Electrolyte Additive for Electrolytic Zn-MnO2 Batteries : Superior Cycling Stability and Areal Capacity

© 2025 Wiley‐VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - (2025) vom: 25. Aug., Seite e14328
1. Verfasser: Li, Hao (VerfasserIn)
Weitere Verfasser: Wang, Shuo, Feng, Zhongyuan, Liu, Zonghang, Liu, Youlin, Yang, Meng, Gao, Peng, Fu, Lijun, Zhao, Xiangyu
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2025
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article electrolyte additives electrolytic Zn−MnO2 battery isoquinoline manganese‐based deposition/dissolution reactions zinc anode
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520 |a Aqueous electrolytic Zn-MnO2 batteries hold great promise for energy storage applications owing to their high theoretical electromotive force and energy density. However, the zinc anode suffers from severe corrosion in strongly acidic electrolytes, leading to hydrogen evolution, low zinc utilization, and premature battery failure. To address these challenges, isoquinoline is introduced as an additive in a chloride-based acidic electrolyte. Isoquinoline molecules preferentially adsorb on the Zn surface and incorporate into the Zn2+ solvation sheath, thereby effectively suppressing zinc corrosion and enhancing Zn plating/stripping reversibility in both half-cell and full-cell configurations. At an optimized concentration of 500 mg L-1 isoquinoline, the modified electrolyte enables the electrolytic Zn-MnO2 battery to achieve outstanding cycling stability, delivering 3650 cycles with an average coulombic efficiency of 98%, demonstrating highly competitive cycling performance among reported electrolytic Zn-MnO2 systems. Furthermore, this electrolyte modulation supports the development of a zinc metal anode-free full cell, which delivers a high areal discharge capacity of ≈8 mAh cm-2 and maintains a stable discharge voltage plateau of ≈1.9 V. These findings underscore the pivotal role of isoquinoline in stabilizing the zinc interface and advancing the performance of electrolytic Zn-MnO2 batteries 
650 4 |a Journal Article 
650 4 |a electrolyte additives 
650 4 |a electrolytic Zn−MnO2 battery 
650 4 |a isoquinoline 
650 4 |a manganese‐based deposition/dissolution reactions 
650 4 |a zinc anode 
700 1 |a Wang, Shuo  |e verfasserin  |4 aut 
700 1 |a Feng, Zhongyuan  |e verfasserin  |4 aut 
700 1 |a Liu, Zonghang  |e verfasserin  |4 aut 
700 1 |a Liu, Youlin  |e verfasserin  |4 aut 
700 1 |a Yang, Meng  |e verfasserin  |4 aut 
700 1 |a Gao, Peng  |e verfasserin  |4 aut 
700 1 |a Fu, Lijun  |e verfasserin  |4 aut 
700 1 |a Zhao, Xiangyu  |e verfasserin  |4 aut 
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773 1 8 |g year:2025  |g day:25  |g month:08  |g pages:e14328 
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