NOVELTY - The battery comprises an anode (12) comprising an amorphous silicon as fuel, an air cathode (14) comprising oxygen as an oxidant, a non-aqueous electrolyte (18), an electric conduit to allow electric current flow between the cathode and the anode, and a device for increasing flow of the oxygen, where the device consists of a pump, a fan, a ventilator a high-pressure container and a tube. The oxygen is derived from ambient air. The silicon is present in a form of a single crystal wafer, a powder, and an alloy comprising a metal in an amount of 1-99 wt.% of the anode.    USE - The battery is useful in an electricity-consuming device such as microelectromechanical systems, an autonomous sensor, an autonomous medical device, an illumination device, an autonomous electromechanical device, an electric vehicle, an uninterrupted power supply device and an electricity storage device, and a portable power source (all claimed) for vehicles and some stationary applications such as car, a bus, a forklift, a segway , a motorcycle, a mobility scooter, a two- three- or four-wheel scooter and a saddle-ride type vehicle.    ADVANTAGE - The battery is easy and safe to use, and can be economically manufactured with high power density, lightweight, enhanced mechanical stability, long service life and minimized electrode corrosion and suffocation.    DETAILED DESCRIPTION - The battery comprises an anode (12) comprising an amorphous silicon as fuel, an air cathode (14) comprising oxygen as an oxidant, a non-aqueous electrolyte (18), an electric conduit to allow electric current flow between the cathode and the anode, and a device for increasing flow of the oxygen, where the device consists of a pump, a fan, a ventilator a high-pressure container and a tube. The oxygen is derived from ambient air. The silicon is present in a form of a single crystal wafer, a powder, and an alloy comprising a metal in an amount of 1-99 wt.% of the anode, comprises p-type dopant and an n-type dopant, and is doped degenerately. An orientation of the crystal consists of silicon (100) crystal orientation, silicon (111) crystal orientation and silicon (101) crystal orientation. The non-aqueous electrolyte consists of an ionic liquid, a mixture of non-ionic polar solvent and a cation and an anion, a conductive polymer, and/or a ceramic oxide. The anode and/or the cathode comprise a catalyst layer. The cathode has a configuration consisting of a plate, a fibrous, a mesh, a rod, a tubular body, a sintered type body and a foamed type body. An INDEPENDENT CLAIM is included for a method of powering an electricity-consuming device.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a battery.    Anode (12)    Cathode (14)    Disc (16)    Electrolyte (18)    Negative terminal (20)    Positive terminal. (22)