Transition metal chalcogenides for next-generation energy storage

Area of Science:

• Materials Science
• Electrochemistry
• Nanotechnology

Background:

• Transition-metal chalcogenides offer unique properties for next-generation energy storage.
• They possess enhanced electroactive sites, structural flexibility, and earth-abundant elements, making them viable alternatives to traditional materials.

Purpose of the Study:

• To review recent advances in chalcogenide-based electrodes for batteries and flexible supercapacitors.
• To explore the structure-property relationships and viability of these materials for energy storage applications.

Main Methods:

• Review of literature on chalcogenide nanostructures, thin films, and heterostructures as electrode materials.
• Analysis of their application in lithium-ion, sodium-ion, and potassium-ion batteries, and flexible supercapacitors.

Main Results:

• Chalcogenide nanocrystals on carbon substrates, 2D transition metal chalcogenides, and MXene-based heterostructures enhance lithium-ion battery performance.
• Transition metal chalcogenides like MoS2, MoSe2, VS2, and SnS2 improve cycling stability and rate capability in batteries.
• Layered chalcogenides and nanowires show promise for flexible supercapacitors.

Conclusions:

• Transition-metal chalcogenides are highly promising electrode materials for diverse energy storage applications.
• Further development of novel chalcogenide nanostructures and layered mesostructures is crucial for advancing energy storage technology.