Abstract: The present invention provides: a non-aqueous electrolyte for an electrochemical device, having ion conductivity sufficient for practical use and capable of improving energy density; a method for producing the same; and an electrochemical device using the same. The non-aqueous electrolyte for an electrochemical device includes a non-aqueous solvent and an alkaline earth metal chloride. The alkaline earth metal chloride is dissolved in an amount of 0.015 mol or more relative to 1 mol of the non-aqueous solvent. The total content of the non-aqueous solvent and the alkaline earth metal chloride is 70 mass % or more in the non-aqueous electrolyte.

Abstract: An air electrode (6) for a metal-air battery includes an air electrode catalyst, an electrolyte for air electrodes and a; conductive material. The electrolyte for air electrodes contains a layered double hydroxide.

Abstract: Disclosed are an inexpensive all-solid-state lithium battery and a group of batteries having a small internal resistance. The electrode active material of the battery is formed on the surface of a solid electrolyte (it may be a crystal or a glass material) containing lithium ion such as Li3.4V0.6Si0.4O4 and a Li—Ti—Al—P—O based glass material by exerting ion impact, high voltage application (e.g., about 400 V) and the like on the surface to react it. The resultant battery comprises the solid electrolyte and an electrode active material composed of a decomposition product of the solid electrolyte and provided on at least one side of the solid electrolyte. One obtainable by accumulating a plurality of the batteries serves as a group of batteries.

Abstract: Disclosed are an inexpensive all-solid-state lithium battery and a group of batteries having a small internal resistance. The electrode active material of the battery is formed on the surface of a solid electrolyte (it may be a crystal or a glass material) containing lithium ion such as Li3.4V0.6Si0.4O4 and a Li—Ti—Al—P—O based glass material by exerting ion impact, high voltage application (e.g., about 400 V) and the like on the surface to react it. The resultant battery comprises the solid electrolyte and an electrode active material composed of a decomposition product of the solid electrolyte and provided on at least one side of the solid electrolyte. One obtainable by accumulating a plurality of the batteries serves as a group of batteries.

Abstract: In the method of producing a film which comprises transporting ions in the thickness direction of a film in the course of formation thereof and reacting the ions so transported to one surface of the film with a gas in a reaction chamber, the rate of film formation is increased by applying an external electric field in the thickness direction of the film and eliminating electric charges accumulating on the film surface via a plasma established in front of the film. The method is applicable to ionically conductive films of a solid electrolyte fuel cell or the like.