Guest Editors
Prof. Yanxin Qiao
Email: yxqiao@just.edu.cn
Affiliation: Jiangsu University of Science and Technology, Zhenjiang, China
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Research Interests: Electrocatalyst; oxygen evolution reaction; hydrogen evolution reaction; transition metal selenide; heterostructure

Dr. Chunfeng Meng
Email: mchf@just.edu.cn
Affiliation: Jiangsu University of Science and Technology, Zhenjiang, China
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Research Interests: electrochemical energy storage

Summary
Electrochemical energy storage technologies have emerged as a dynamic and rapidly advancing research frontier, encompassing batteries, supercapacitors, fuel cells, and catalysis. Central to the progress of these technologies are key strategies such as the design and modification of electrode materials, interface engineering, and electrolyte optimization. Chalcogen-based materials have garnered significant attention across these domains due to their unique physicochemical properties, which enable effective modulation of electric field distribution and ion transport within electrochemical devices.
This Special Issue aims to showcase the functional roles of chalcogenide materials in electrochemical energy storage, with a particular focus on their synthesis, characterization, and application in advanced energy systems. We cordially invite researchers to contribute original research articles that highlight recent breakthroughs and emerging trends in this field.
Contributions are encouraged to explore innovative synthesis and fabrication strategies, advanced structural characterization techniques, and the application of chalcogenide materials in both energy storage and conversion. Topics of interest include, but are not limited to:
· Synthesis and modification of chalcogenide-based active materials for electrochemical energy storage, including sulfur and organosulfur compounds for battery applications, etc.
· Chalcogenide materials as electrolyte components for energy storage devices, such as solid-state and all-solid-state batteries, ionic liquid-based electrolyte systems, and organosulfur electrolyte formulations, etc.
· Surface and interface engineering using chalcogenide materials in batteries, supercapacitors, electrolyzers, and related systems, etc.
Keywords
electrocatalyst; oxygen evolution reaction; hydrogen evolution reaction; transition metal selenide; heterostructure