Advances in Electrodes and Electrolyte Engineering for High-Performance Zn Batteries and Supercapacitors

Dear Colleagues,

Zinc-based aqueous energy storage devices offer significant advantages such as high capacity, water compatibility, suitable redox potential, high safety, and low cost, making them highly promising for grid-level energy storage. However, challenges persist in achieving zinc metal reversibility due to issues such as dendritic growth, low Coulombic efficiency (CE), metal corrosion, and hydrogen evolution. Additionally, cathode materials face obstacles such as metal dissolution, poor conductivity, and limited capacity/capacitance in batteries/supercapacitors.

Various strategies have been developed to enhance electrode performance, including surface modification, coating, host construction, crystal facet engineering, separator design, and electrolyte modification. Among these, there is a growing focus on regulating the components and structures of electrolytes (solvent, salt, concentration, etc.) to address existing challenges in zinc-based energy devices. This is crucial as the electrolyte strongly influences factors such as voltage window, ionic conductivity, zinc plating/stripping process, zinc corrosion behavior, and cathode dissolution.

In line with these advancements, we are pleased to announce a Special Issue entitled "Advances in Electrodes and Electrolyte Engineering for High-Performance Zn Batteries and Supercapacitors". This Special Issue aims to showcase the latest developments in this research domain, covering advancements in anode, cathode, and electrolyte engineering towards the realization of advanced zinc batteries and supercapacitors.

Dr. Zhixiao Xu
Dr. Wenjing Deng
Guest Editors

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• aqueous energy storage
• zinc batteries
• zinc supercapacitors
• electrolyte engineering
• dendrite-free zinc anode
• Mn-based cathode
• V-based cathode
• cathode dissolution inhibition
• electrolyte engineering
• solvation structure