Solid-state battery and method for producing solid-state battery

A vehicle comprising a solid-state battery,

• wherein the solid-state battery comprises an anode layer containing an anode active material, a cathode layer containing a cathode active material, and a solid electrolyte layer containing a solid electrolyte and being disposed between the anode layer and the cathode layer,
• wherein the anode layer further contains an interface forming agent, and the interface forming agent contains at least one kind of elements selected from metal elements and semi-metal elements, which can become cations which conduct the solid electrolyte contained in the solid electrolyte layer, which are not involved in an electrode reaction, which have lower ionic conductivity than ions involved in the electrode reaction, and which have ionic radii of 1.34 Å or less, and
• wherein the solid electrolyte layer has dendritic structure in at least one of an interface with the cathode layer and an interface with the anode layer.