Cobalt(IV) sulfide is primarily utilized in advanced material science and energy storage applications. It is a key component in the development of high-performance batteries, particularly lithium-ion batteries, due to its excellent electrochemical properties. The compound enhances battery capacity and stability, making it suitable for use in electric vehicles and portable electronics. Additionally, cobalt(IV) sulfide is employed in catalysis, where it facilitates various chemical reactions, including hydrogen production and organic synthesis. Its unique properties also make it valuable in the field of nanotechnology, where it is used to create nanostructures with specific electronic and magnetic characteristics.