Method for producing solid electrolyte, method for producing separator, method for producing electrode and method for producing power storage device

Abstract

To provide a method for producing a solid electrolyte capable of reducing interfacial resistance, a method for producing a separator, a method for producing an electrode and a method for producing a power storage device.SOLUTION: There is provided a method for producing a solid electrolyte which comprises an operation of applying a force to the surface of the solid electrolyte and producing a new surface on the solid electrolyte in a state where a solution obtained by dissolving an alkali metal salt in a solvent is present on the surface. There are provided: a method for producing a separator which comprises a step of disposing the solid electrolyte obtained by the method for producing a solid electrolyte; a method for producing an electrode which comprises a step of disposing the solid electrolyte obtained by the method for producing a solid electrolyte; and a method for producing a power storage device which comprises a step of disposing the solid electrolyte obtained by the method for producing a solid electrolyte.SELECTED DRAWING: Figure 4

Claims

1. A method for producing a solid electrolyte, comprising: A method for producing a solid electrolyte, comprising applying a force to a surface of the solid electrolyte and creating a new surface on the solid electrolyte in a state where a solution of an alkali metal salt dissolved in a solvent is present on the surface.

2. 2. The method for producing a solid electrolyte according to claim 1, wherein the operation is carried out in an inert atmosphere.

3. 2. The method for producing a solid electrolyte according to claim 1, wherein said step applies force to said surface by using an abrasive material harder than said solid electrolyte.

4. 2. The method for producing a solid electrolyte according to claim 1, wherein the alkali metal salt is an imide salt.

5. 5. The method for producing a solid electrolyte according to claim 4, wherein the alkali metal salt is lithium bis(fluorosulfonyl)imide or lithium bis(trifluoromethanesulfonyl)imide.

6. 2. The method for producing a solid electrolyte according to claim 1, wherein the solid electrolyte has a garnet-type crystal structure containing Li, La, Zr, and O.

7. The method for producing a solid electrolyte according to claim 6, wherein the solid electrolyte further contains Mg and Sr.

8. A method for producing a separator, comprising the step of arranging a solid electrolyte obtained by the method for producing a solid electrolyte according to any one of claims 1 to 7.

9. A method for producing an electrode, comprising the step of arranging a solid electrolyte obtained by the method for producing a solid electrolyte according to any one of claims 1 to 7.

10. A method for producing an electricity storage device, comprising the step of arranging a solid electrolyte obtained by the method for producing a solid electrolyte according to any one of claims 1 to 7.

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