Method for rapid synthesis of metal sulfides
AssigneeSolid Power Operating, Inc.
InventorsBenjamin A. CARLSON, Samuel M. OBERWETTER, Clara MAUSER, Brian E. FRANCISCO
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Abstract
Methods for producing metal sulfides generally include combining an alkali metal sulfide and a metal halide in an aprotic solvent to produce a mixture that includes an alkali metal halide and a metal sulfide. Additional methods include combining a first alkali metal sulfide, a second alkali metal sulfide, and a metal halide in an aprotic solvent to produce a mixture that includes a first alkali metal halide, a second alkali metal halide, and a metal sulfide. The methods may include adding a second solvent to cause an alkali metal halide to precipitate out of the mixture and improve the purity of the metal sulfide.
Claims25
A method of producing a metal sulfide comprising:
- combining a first alkali metal sulfide, a second alkali metal sulfide, and a metal halide in an aprotic solvent to produce a solution comprising a metal sulfide and an alkali metal salt.
A method of producing a metal sulfide comprising:
- (a) combining a first alkali metal salt and a first alkali metal sulfide in an aprotic solvent to produce a mixture comprising a second sulfide and a precipitated second alkali metal salt;
- (b) adding a metal halide to the mixture to produce a supernatant comprising the first alkali metal salt and a metal sulfide and the aprotic solvent;
- (c) removing the precipitated second alkali metal salt from the supernatant;
- (d) adding a second solvent to precipitate the metal sulfide;
- and
- (e) recovering the precipitated metal sulfide.
A method of producing a metal sulfide comprising:
- combining a first alkali metal sulfide, a second alkali metal sulfide, and a metal halide in an aprotic solvent to form a mixture comprising a first alkali metal halide, a precipitated second alkali metal halide, and a metal sulfide;
- removing the precipitated second alkali metal halide from the mixture;
- adding a second solvent to the mixture to precipitate the metal sulfide;
- and
- removing the precipitated metal sulfide from the mixture.
A method of producing a composite comprising a metal sulfide comprising:
- combining a first alkali metal sulfide, a second alkali metal sulfide, and a metal halide in an aprotic solvent to form a mixture comprising a first alkali metal halide, a precipitated second alkali metal halide, and a metal sulfide;
- removing the precipitated second alkali metal halide from the mixture;
- and
- heating the mixture to remove the aprotic solvent, thereby forming a composite comprising a metal sulfide.
A method of producing a metal sulfide comprising:
- combining an alkali metal sulfide and a metal halide in an aprotic solvent to form a mixture;
- adding a second solvent to the mixture to precipitate the metal sulfide;
- and
- removing the precipitated metal sulfide from the mixture.
A method of producing a composite comprising a metal sulfide comprising:
- combining an alkali metal sulfide and a metal halide in an aprotic solvent to form a mixture;
- and
- heating the mixture to remove the aprotic solvent, thereby forming a composite comprising a metal sulfide.
Dependencies are inferred from the claim text.