NOVELTY - An all-solid-state battery has negative electrode active material layer and reaction control portion (6) including lithium-ion conductive layer (7) with lithium-ion conductor (a) on positive electrode active material side, and stabilization layer (8) having lithium-ion conductor (b) on electrolyte layer side. The lithium-ion conductor (a) is lithium-containing compound with lithium-ion conductivity of 1x 10-7 S/cm or more. A lithium-ion conductor (b) is lithium-containing compound with polyanion structure of boron, silicon, potassium, titanium, zirconium, aluminum or tungsten.    USE - All-solid-state battery. Uses include but are not limited to video camera, mobile telephone, communication apparatus, motor vehicle, electric vehicle and hybrid vehicle.    ADVANTAGE - The all-solid-state battery has suppressed time-dependent increase interfacial resistance of positive electrode active material and solid electrolyte material.    DETAILED DESCRIPTION - An all-solid-state battery has a positive electrode active material layer containing a positive electrode active material (4), a negative electrode active material layer containing a negative electrode active material, solid electrolyte layer formed between positive electrode active material layer and negative electrode active material layer, and reaction control portion containing two layers which are lithium-ion conductive layer including lithium-ion conductor (a) on surface of the positive electrode active material side, and stabilization layer including lithium-ion conductor (b) on the solid electrolyte layer side. At least one of the positive electrode active material layer and the solid electrolyte layer contain sulfide solid electrolyte material. The lithium-ion conductor (a) is lithium-containing compound having lithium-ion conductivity of 1x 10-7 S/cm or more. A lithium-ion conductor (b) is lithium-containing compound having polyanion structure including boron, silicon, potassium, titanium, zirconium, aluminum and tungsten. An INDEPENDENT CLAIM is included for manufacture of all-solid-state battery.    DESCRIPTION OF DRAWING(S) - The drawing shows schematic sectional view of reaction control portion of all-solid-state battery.    Positive electrode active material (4)    Reaction control portion (6)    Lithium-ion conductor layer (7)    Stabilization layer (8)