ALL-SOLID-STATE BATTERY

An all-solid-state battery includes: an electrode body that is provided with a laminate including an anode current collector layer, an anode composite material layer, a solid electrolyte layer, a cathode composite material layer, and a cathode current collector layer; an outer encasement member that envelops the electrode body; and a protective member with electrically insulating properties that is disposed on a side surface of the laminate. The protective member has a groove extending along a direction in which a surface of the laminate extends.