Abstract: A primary battery includes a positive electrode containing isatin, a negative electrode containing magnesium or aluminum, and an electrolyte disposed between the positive electrode and the negative electrode.

Abstract: A vehicle upper structure includes a roof member of a vehicle, a sensor, a sensor cover, and an external cover. The sensor is mounted on an upper part of the vehicle such that at least part of the sensor is located above the roof member. The sensor is configured to emit and receive electromagnetic waves to recognize the external environment of the vehicle. The sensor cover covers at least the part of the sensor that is above the roof member. The external cover covers the sensor cover from outside with a gap between the external cover and the sensor cover.

Abstract: The present invention provides an air battery using oxygen in air as a cathode active material, the air battery comprising: a cylindrical anode made of a metal; a cathode constituted by a co-continuous body having a three dimensional network structure formed by an integrated plurality of nanostructures having branches; and a separator that is arranged between the cathode and the anode and absorbs an electrolytic solution, wherein: the cathode is arranged inside the anode via the separator; and the anode has an open hole that reaches the separator and constitutes a housing of the air battery.

Abstract: An oscillation circuit includes an oscillator, first and second capacitors connected between two terminals of the oscillator, and an amplification circuit having an input terminal connected to a connecting point between the oscillator and the first capacitor and an output terminal connected to a connecting point between the first capacitor and the second capacitor. The amplification circuit includes a first n-type transistor and a first p-type transistor respectively having source terminals, the connecting point of which is connected to the output terminal of the amplification circuit, a second p-type transistor connected to a gate terminal of the first n-type transistor, and a second n-type transistor connected to a gate terminal of the first p-type transistor.

Abstract: A tilt sensor includes a notification unit adapted to provide notification about occurrence of tilt; a water storage chamber that contains an electrolytic solution; and a unit cell that includes a positive electrode, a negative electrode, and a separator placed between the positive electrode and the negative electrode. When the water storage chamber tilts, the electrolytic solution is injected into the separator and the unit cell starts generating power and supplies electric power needed to drive the notification unit.

Abstract: A flood sensor includes a notification unit that notifies of detection of flooding, and a primary battery. The primary battery includes a positive electrode, a negative electrode, and a separator that is disposed between the positive electrode and the negative electrode and to which an electrolyte adheres. When the separator is flooded, the electrolyte is dissolved in water to form an electrolyte solution, and the primary battery starts generating power to supply power necessary for driving the notification unit.

Abstract: A primary battery includes: a positive electrode containing 2,5-dimethoxy-1,4-benzoquinone; a negative electrode containing magnesium or aluminum; and an aqueous electrolytic solution disposed between the positive electrode and the negative electrode.

Abstract: A battery performance of a metal-air battery is improved while still maintaining a low environmental burden. A metal-air battery includes an air electrode formed from a co-continuous substance having a three-dimensional network structure in which a plurality of nanostructures are integrated by noncovalent bonds; an anode; and an electrolyte disposed between the air electrode and the anode, in which the electrolyte is a gel electrolyte obtained by gelling an aqueous solution containing an ion conductor with a gelling agent, and the gelling agent is constituted of at least one of a plant-derived polysaccharide, a seaweed-derived polysaccharide, a microbial polysaccharide, an animal-derived polysaccharide, and a group of acetic acid bacteria that produce the polysaccharides.

Abstract: There is provided an air battery including a first housings accommodating a base cell including a negative electrode, a positive electrode, and a separator disposed between the negative electrode and the positive electrode, and a second housing containing an electrolyte solution or water, in which the first housing and the negative electrode each have a hole leading to the separator, the second housing has a hole that is capable of being sealed, and the first housing and the second housing are disposed to face the hole of the first housing and the hole of the second housing each other.

Abstract: A battery includes a cathode (101), an anode (102), and an electrolyte (103). The cathode (101) is made of a bicontinuous body having a three-dimensional network structure including a plurality of nanostructures. The electrolyte (103) is sandwiched between the cathode (101) and the anode (102) and made of a salt. The electrolyte (103) may be made of, e.g., an aqueous solution of one of potassium chloride and sodium chloride, or a mixture thereof. The anode (102) may contain, e.g., a metal selected from magnesium, zin, iron, and aluminum.

Abstract: A cap of a container includes: a wireless communication unit; and a primary battery that supplies power to the wireless communication unit, the primary battery includes: a basic cell including a negative electrode, a positive electrode, and a separator; an electrolytic solution contained in a separate chamber from the basic cell; and a sealing valve of the separate chamber, the electrolytic solution is brought into contact with the separator by pulling out the sealing valve to start power generation, and the wireless communication unit operates by power generation of the primary battery and transmits an opening notification of the container.

Abstract: A method includes a freezing process in which a solution or gel containing cellulose nanofibers is frozen to obtain a frozen component, a drying process in which the frozen component is dried in a vacuum to obtain a dry component, and a carbonizing process in which the dry component is heated and carbonized in a non-combustible atmosphere, and in the carbonizing process, the dry component is heated together with a reducing catalyst and also a material that generates a reducing gas by thermal decomposition.

Abstract: A metal-air battery includes: a cathode formed of a co-continuous body having a three dimensional network structure formed by an integrated plurality of nanostructures having branches; a foil- or plate-like anode formed of a metal; a separator that absorbs a liquid, which is to be an electrolytic solution; and a foil- or plate-like current collector formed of a metal. The metal-air battery is formed with a wound structure in which the current collector, the cathode, the separator, the anode, and the separator are superimposed and wound in this order.

Abstract: A metal-air battery includes: an air electrode; a negative electrode containing a metal; and an electrolyte having ion conductivity. The air electrode includes: a co-continuous body having a three-dimensional network structure in which a plurality of nanostructures is split and integrated; and mesoporous carbon supported on the co-continuous body.

Abstract: An iron-zinc battery includes a positive electrode containing iron oxyhydroxide, a negative electrode containing zinc, and an electrolyte disposed between the positive electrode and the negative electrode.

Abstract: An iron-zinc battery includes a positive electrode containing iron oxyhydroxide, a negative electrode containing zinc, and an aqueous electrolytic solution disposed between the positive electrode and the negative electrode. The aqueous electrolytic solution contains zinc chloride (ZnCl2), and the weight of the zinc chloride (ZnCl2) is equal to or more than the weight of water (H2O) contained in the aqueous electrolytic solution.

Abstract: A primary battery including a positive electrode containing iron oxyhydroxide, a negative electrode containing magnesium or aluminum, and an electrolyte disposed between the positive electrode and the negative electrode.

Abstract: A metal-air battery includes an air electrode, a negative electrode, and an electrolytic solution disposed between the air electrode and the negative electrode, and the electrolytic solution contains an alkyl glucoside having or more and or less carbon atoms.

Abstract: A metal-air battery includes: an air electrode; a negative electrode; an ion exchange membrane that separates the air electrode and the negative electrode from each other; an air-electrode-side electrolytic solution that is disposed between the air electrode and the ion exchange membrane; and a negative-electrode-side electrolytic solution that is disposed between the negative electrode and the ion exchange membrane. The negative-electrode-side electrolytic solution contains a surfactant.

Abstract: Provided is an assembled battery in which a large number of flat batteries can be stacked easily. An assembled battery 1 includes stacked multiple flat batteries A, B, and C in the shape of an N-sided polygon (N is an integer of 3 or more). Each of the multiple flat batteries A, B, and C in the shape of the N-sided polygon has a positive-electrode terminal 21a and a negative-electrode terminal 61a that extend in different directions having 360°/N in between, and the multiple flat batteries A, B, and C are electrically connected in series. The assembled battery 1 also includes multiple N-sided polygonal separating films 71 and 72 disposed between each pair of adjacent ones of the stacked multiple flat batteries A, B, and C to insulate the flat batteries from one another.