Method of preparing lithium sulfide
AssigneeSK Innovation Co., Ltd.
InventorsSuk Joon HONG, Min June CHOI, Ji Min KIM, Wan Uk CHOI, Je Nam CHOI
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Abstract
In a method for preparing lithium sulfide, a solid sulfur layer and a lithium source layer are sequentially arranged in a reactor. A gas feed is injected into the reactor in a single direction to obtain a lithium sulfide-containing product. The lithium sulfide-containing product is dissolved in an anhydrous solvent to form a lithium sulfide-containing solution. Lithium sulfide is separated from the lithium sulfide-containing solution. The gas feed sequentially passes through the solid sulfur layer and the lithium source layer, such that high-purity lithium sulfide may be efficiently prepared.
Claims16
A method of preparing lithium sulfide, the method comprising:
- sequentially arranging a solid sulfur layer and a lithium source layer in a reactor;
- injecting a gas into the reactor in a single direction to obtain a lithium sulfide-containing product;
- dissolving the lithium sulfide-containing product in an anhydrous solvent to form a lithium sulfide-containing solution;
- and
- separating lithium sulfide from the lithium sulfide-containing solution.
A method of preparing lithium sulfide, the method comprising:
- providing a reactor comprising a solid sulfur layer and a lithium source layer spaced apart from each other with the solid sulfur layer positioned upstream from the lithium source layer;
- sequentially arranging a solid sulfur layer and a lithium source layer in a reactor;
- injecting a gas feed from a gas supply unit into the reactor in a single direction to pass first through the solid sulfur layer and then second through the lithium source layer to obtain a lithium sulfide-containing product exiting the lithium source layer;
- dissolving the lithium sulfide-containing product in an anhydrous solvent to form a lithium sulfide-containing solution;
- and
- separating lithium sulfide from the lithium sulfide-containing solution.
Dependencies are inferred from the claim text.