Slurry, production method for solid electrolyte layer, production method for electrode active material layer, and production method for all-solid-state battery

摘要

A main object of the present invention is to provide a practical slurry having a polar solvent as the dispersion medium for a sulfide solid electrolyte material. The present invention solves the above-mentioned problem by providing a slurry having: a sulfide solid electrolyte material, and a dispersion medium having at least one selected from the group consisting of tertiary amine; ether; thiol; ester having a functional group of a 3 or more carbon number bonded with a carbon atom of an ester bonding and a functional group of a 4 or more carbon number bonded with an oxygen atom of the ester bonding; and ester having a benzene ring bonded with a carbon atom of an ester bonding.

主权项

1. A slurry comprising:
a sulfide solid electrolyte material; and a dispersion medium comprising at least one selected from the group consisting of a tertiary amine; an ether; an ester having a functional group that contains 3 or more carbon atoms bonded with a carbon atom of the ester by a carbon-carbon bond and a functional group that contains 4 or more carbon atoms bonded with an oxygen atom of the ester; and an ester having a benzene ring bonded with a carbon atom of the ester by a carbon-carbon bond, wherein: the sulfide solid electrolyte material comprises a material composition including Li2S and P2S5; and the ether is at least one selected from the group consisting of cyclopentyl methyl ether, dibutyl ether, and anisole.