Solid-state battery and manufacturing method of the solid-state battery

Abstract

A solid-state battery according to the present disclosure includes a cathode layer, an anode layer, and a solid electrolyte layer disposed between the cathode layer and the anode layer. The solid electrolyte layer includes a solid electrolyte, a first binder, and a second binder. A softening temperature of the first binder is higher than that of the second binder. Content of the first binder in the solid electrolyte layer is 0.5% by volume to 4.0% by volume, and also content of the second binder in the solid electrolyte layer is 2.5% by volume to 12.5% by volume. The laminated electrode body in which the solid electrolyte layer is disposed between the cathode layer and the anode layer is densified by pressing the laminated electrode body at a temperature equal to or higher than the softening temperature of the second binder and lower than the softening temperature of the first binder.

Dependencies are inferred from the claim text.