Abstract: A solid-state battery that includes: a solid-state battery laminate including at least one battery constituent unit including: a positive electrode layer, the positive electrode layer containing a conductive carbon material; a positive electrode current collecting portion arranged at an end surface of the positive electrode layer; a negative electrode layer; and a solid-state electrolyte layer interposed between the positive electrode layer and the negative electrode layer in a stacking direction thereof; a positive electrode terminal electrically connected to the positive electrode current collecting portion; and a negative electrode terminal electrically connected to the negative electrode layer.

Abstract: A solid state battery including a positive electrode layer, a negative electrode layer, and a solid electrolyte layer interposed between the positive electrode layer and the negative electrode layer, wherein the positive electrode layer includes a positive electrode active material in which a spacing d003 of a lattice plane (003) is 4.800 ? or more in a charged state at a positive electrode potential of 4.55 V.

Abstract: A solid-state battery including a solid-state battery laminated body including a positive electrode layer, a negative electrode layer, and a solid electrolyte interposed between the positive electrode layer and the negative electrode layer; a positive electrode terminal on a first side surface of the solid-state battery laminated body; and a negative electrode terminal on a second side surface of the solid-state battery laminated body, the second side surface facing the first side surface. In such a solid-state battery, in at least one electrode layer of the positive electrode layer and the negative electrode layer, a terminal contact end portion containing an electrode active material is in direct contact with the respective positive or negative electrode terminal, and a thickness of a non-terminal contact end portion in the electrode layer is smaller than a thickness of a central portion of the electrode layer.

Abstract: A battery includes a positive electrode including powder of a positive electrode active material; a negative electrode; and an electrolyte. The powder of the positive electrode active material includes particles, which have a grain boundary and in which c axes of two regions sandwiching the grain boundary are in reflective symmetry, and the particles in the powder of the positive electrode active material have a content percentage of 50% or less.

Abstract: In one embodiment, a thin film solid state lithium ion secondary battery is able to be charged and discharged in the air and is able to be manufactured stably at a favorable yield. The thin film solid state lithium ion secondary battery has an electric insulating substrate formed from an organic resin, an inorganic insulating film provided on the substrate face, a cathode-side current collector film, a cathode active material film, a solid electrolyte film, an anode potential formation layer, and an anode-side current collector film. The cathode-side current collector film and/or the anode-side current collector film is formed on the inorganic insulating film face. The anode potential formation layer is a layer formed from the same material as that of the cathode active material film or a material different from that of the cathode active material film and is a layer provided for forming anode potential at the time of discharge.

Abstract: In one embodiment, a thin film solid state lithium ion secondary battery is able to be charged and discharged in the air and is able to be manufactured stably at a favorable yield. The thin film solid state lithium ion secondary battery has an electric insulating substrate formed from an organic resin, an inorganic insulating film provided on the substrate face, a cathode-side current collector film, a cathode active material film, a solid electrolyte film, an anode potential formation layer, and an anode-side current collector film. The cathode-side current collector film and/or the anode-side current collector film is formed on the inorganic insulating film face. The anode potential formation layer is a layer formed from the same material as that of the cathode active material film or a material different from that of the cathode active material film and is a layer provided for forming anode potential at the time of discharge.

Abstract: In one embodiment, a thin film solid state lithium ion secondary battery is able to be charged and discharged in the air and manufactured stably at a favorable yield. The thin film solid state lithium ion secondary battery has an electric insulating substrate formed from an organic resin, an inorganic insulating film provided on the substrate face, a cathode-side current collector film, a cathode active material film, a solid electrolyte film, an anode potential formation layer, and an anode-side current collector film. The cathode-side current collector film and/or the anode-side current collector film is formed on the inorganic insulating film face. The anode potential formation layer is a layer formed from the same material as that of the cathode active material film or a material different from that of the cathode active material film and is a layer provided for forming anode potential at the time of discharge.

Abstract: A method for producing a thin-film battery includes a film-formation step of forming a film of a positive-electrode material to form a positive-electrode active material film and an annealing step of annealing the positive-electrode active material film. After the annealing step, a lithium-ion introduction step of introducing lithium ions into the positive-electrode active material film. After the introduction of the lithium ions, a reverse-sputtering step of edging the positive-electrode active material film by reverse sputtering.

Abstract: An IC card having a secondary battery, which causes no increase in thickness and also has excellent safety, is provided. The IC card includes an antenna coil for inducing electric power by electromagnetic induction, a thin-film battery for storing electric power induced by the antenna coil, and a control portion for controlling the storage of the electric power from the antenna coil in the thin-film battery. The thin-film battery includes a positive electrode, a negative electrode, and a solid electrolyte layer between the positive electrode and the negative electrode.

Abstract: In one example embodiment, a thin film solid state lithium ion secondary battery is charged and discharged in the air. The thin film solid state lithium ion secondary battery has an electric insulating substrate formed from an organic resin, an insulating film made of an inorganic material and is formed on the substrate face, a cathode-side current collector film, a cathode active material film, a solid electrolyte film, an anode active material film, and an anode-side current collector film. In the thin film solid state lithium ion secondary battery, the cathode-side current collector film and/or the anode-side current collector film is formed on the foregoing insulating film face. The area of the foregoing insulating film is larger than the area of the cathode-side current collector film or the anode-side current collector film or the total area of the cathode-side current collector film and the anode-side current collector film.

Abstract: A high-performance and inexpensive thin film solid state lithium ion secondary battery that is able to be charged and discharged in the air and is able to be manufactured stably at a favorable yield, and a method of manufacturing the same are provided. The thin film solid state lithium ion secondary battery has an electric insulating substrate 10 formed from an organic resin, an inorganic insulating film provided on the substrate face, a cathode-side current collector film 30, a cathode active material film 40, a solid electrolyte film 50, an anode-side current collector protective film 68, and an anode-side current collector film 70. In the thin film solid state lithium ion secondary battery, the cathode-side current collector film and/or the anode-side current collector film is formed on the inorganic insulating film face.

Abstract: In one embodiment, a thin film solid state lithium ion secondary battery is able to be charged and discharged in the air and manufactured stably at a favorable yield. The thin film solid state lithium ion secondary battery has an electric insulating substrate formed from an organic resin, an inorganic insulating film provided on the substrate face, a cathode-side current collector film, a cathode active material film, a solid electrolyte film, an anode potential formation layer, and an anode-side current collector film. The cathode-side current collector film and/or the anode-side current collector film is formed on the inorganic insulating film face. The anode potential formation layer is a layer formed from the same material as that of the cathode active material film or a material different from that of the cathode active material film and is a layer provided for forming anode potential at the time of discharge.

Abstract: A method for producing a thin-film battery includes a film-formation step of forming a film of a positive-electrode material to form a positive-electrode active material film and an annealing step of annealing the positive-electrode active material film. After the annealing step, a lithium-ion introduction step of introducing lithium ions into the positive-electrode active material film. After the introduction of the lithium ions, a reverse-sputtering step of edging the positive-electrode active material film by reverse sputtering.

Abstract: An IC card having a secondary battery, which causes no increase in thickness and also has excellent safety, is provided. The IC card includes an antenna coil for inducing electric power by electromagnetic induction, a thin-film battery for storing electric power induced by the antenna coil, and a control portion for controlling the storage of the electric power from the antenna coil in the thin-film battery. The thin-film battery includes a positive electrode, a negative electrode, and a solid electrolyte layer between the positive electrode and the negative electrode.