Nickel sulfide is widely used in the production of rechargeable batteries, particularly nickel-metal hydride (NiMH) batteries, where it serves as a key component in the cathode material. It is also utilized in the manufacturing of catalysts for hydrogenation and desulfurization processes in the petrochemical industry. In the field of electronics, nickel sulfide is employed in the creation of semiconductors and photovoltaic cells due to its conductive properties. Additionally, it plays a role in the synthesis of pigments and dyes, contributing to the coloration of ceramics and glass. Its application in metallurgy includes improving the strength and corrosion resistance of alloys.