Abstract: The invention provides a metal air battery with improved discharge characteristics compared to conventional ones. This is achieved by a metal air battery including a positive electrode layer, a negative electrode layer, and an electrolyte layer positioned between the positive electrode layer and the negative electrode layer, wherein the positive electrode layer includes an electroconductive material, a binder, and a SiO2 particle, and wherein the SiO2 particle has a specific surface area of 16.7 m2/g or less.

Abstract: An object of the invention is to provide an air battery that can avoid anode corrosion and withstand long-term use and storage, a mobile object including the air battery, and a method for using an air battery. Disclosed is an air battery including an air electrode, an anode, a liquid electrolyte layer and an outer case, the liquid electrolyte layer being present between the air electrode and the anode, and the outer case housing one or two or more laminates each comprising the air electrode, the anode and the liquid electrolyte layer, wherein the anode includes at least an anode active material layer and an anode current collector in order from the closest to the liquid electrolyte layer, and wherein the anode active material layer and the anode current collector are present on the upper side of the vertical direction and above the liquid electrolyte layer.

Abstract: The invention provides a metal air battery with improved discharge characteristics compared to conventional ones. This is achieved by a metal air battery including a positive electrode layer, a negative electrode layer, and an electrolyte layer positioned between the positive electrode layer and the negative electrode layer, wherein the positive electrode layer includes an electroconductive material, a binder, and a SiO2 particle, and wherein the SiO2 particle has a specific surface area of 16.7 m2/g or less.

Abstract: The invention provides a metal air battery with a discharge capacity higher than a conventional one. This is achieved by an air electrode for a metal air battery provided with a layered body including a first layer containing a carbon material, a second layer containing a carbon material, and an intermediate layer containing a solid electrolyte and being positioned between the first layer and the second layer.

Abstract: An air electrode for a metal-air battery that includes the air electrode, a negative electrode, and an electrolyte provided between the air electrode and the negative electrode. The air electrode includes non-crosslinking oxygen-containing MxOy-based glass that contains a non-crosslinking oxygen that is an oxygen (O) that bonds to M constituting the MxOy-based glass and bonds to Ag, MxOy of the MxOy-based glass being at least one kind selected from the group of B2O3, P2O5, SiO2, GeO2, and Al2O3.

Abstract: The invention provides a battery electrode manufacturing method that includes a composition adjusting process of adjusting an electrode layer forming composition that includes a first electrode material having a particle size that is larger than an opening size of a porous collector, and a second electrode material having a particle size that is smaller than the opening size of the porous collector; and an application process of applying the electrode layer forming composition to the porous collector. The invention also provides a battery electrode having an inner electrode layer and an outer electrode layer.

Abstract: An electrode element contains a positive electrode active material and a second solid electrolyte. The positive electrode active material has an active material and a first solid electrolyte. Seventy percent or more of a surface of the active material is coated with the first solid electrolyte.

Abstract: The invention provides a battery electrode manufacturing method that includes a composition adjusting process of adjusting an electrode layer forming composition that includes a first electrode material having a particle size that is larger than an opening size of a porous collector, and a second electrode material having a particle size that is smaller than the opening size of the porous collector; and an application process of applying the electrode layer forming composition to the porous collector. The invention also provides a battery electrode having an inner electrode layer and an outer electrode layer.