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China and South Korea are the leading exporters of lithium sulfide, accounting for the majority of global shipments, while the United States, Germany, and Japan represent the largest importers. These importing nations primarily source lithium sulfide for advanced battery R&D and solid-state electrolyte development. Trade volumes have remained relatively stable since 2022, with modest growth aligning with steady demand from battery materials manufacturers—though lithium sulfide prices have shown increased volatility amid tightening raw material supply chains.
Lithium sulfide (Li₂S) is a white to yellowish crystalline solid at room temperature, odorless and non-volatile, with a high melting point of approximately 938 °C. It is an inorganic ionic compound classified as a metal sulfide and a lithium-based precursor material. Lithium sulfide serves primarily as a key raw material and intermediate in the synthesis of advanced lithium-based battery cathode and solid electrolyte materials—particularly for next-generation solid-state lithium–sulfur and lithium-metal batteries. Its principal application lies in the energy storage sector, where it is used in the production of sulfide-based solid electrolytes (e.g., Li₃PS₄, Li₇P₃S₁₁) and as a sulfur source in cathode active material formulations.
Lithium sulfide (Li2S) is a product specially designed for the use in high performance batteries which can be either applied as electrode material or as precursor for solid electrolytes. It as an electrode material not only has high capacity but also overcomes many problems caused by pure sulfur electrodes.Lithium sulfide is an anti fluorite semiconductor (bandgap 3.865eV). It exists in orthorhombic and cubic structures. The densities of the orthorhombic and cubic structures are 1.75g/cm3 and 1.63g/cm3 respectively.Lithium sulfide has been studied as a MgB2- like superconductor. It is also used as a cathode material in rechargeable lithium-sulfur batteries.
Lithium sulfide is the inorganic compound with the formula Li2S. It crystallizes in the antifluorite motif, described as the salt (Li+)2S2−. It forms a solid yellow-white deliquescent powder. In air, it easily hydrolyses to release hydrogen sulfide (rotten egg odor) Lithium sulfide is prepared by treating lithium with sulfur. This reaction is conveniently conducted in anhydrous ammonia. The THF-soluble triethylborane adduct of lithium sulfide can be generated using superhydride.
This chemical is included in Energy. See more about what is Lithium sulfide and Lithium sulfide SDS information.
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