Abstract: When a coin-type battery is manufactured using a sealing can in which a fold portion is not provided in a side wall portion, a coin-type battery with excellent reliability, which has excellent mass productivity and sealing properties and a capacity of which has been increased by increasing a housing space in which an electrode body is housed is manufactured. An open end portion of a side wall portion of a sealing can is formed not to bend toward an inner circumference side and an outer circumference side, an edge of the open end portion is formed not to have a sharp angle, a cut off portion is formed in an inner circumference side of an upper end portion, the sealing can is fitted to a gasket an inner diameter of which is made smaller than an external diameter of the side wall portion of the sealing can, an exterior can is caulked, thereby manufacturing a coin-type battery.

Abstract: A fuel cell system installed in a mobile body comprises; a fuel cell; a gas supply flow path; an injection device provided on the gas supply flow path; a pressure regulating valve configured to be provided more on an upstream side than the injection device on the gas supply flow path, and to autonomously perform an opening/closing operation in accordance with a difference between pressure between the pressure regulating valve and the injection device on the gas supply flow path and pressure on an upstream side of the pressure regulating valve; and a control unit configured to control injection of the reaction gas by the injection device. The control unit calculates an injection interval of the injection device based on an upper limit operation count of the pressure regulating valve set in advance with respect to a predetermined traveling distance of the mobile body.

Abstract: A redox flow battery includes a positive electrolyte tank container which houses a positive electrolyte tank for storing a positive electrolyte; a negative electrolyte tank container which houses a negative electrolyte tank for storing a negative electrolyte; and a battery container which houses a battery cell including a positive electrode, a negative electrode, and a membrane, a positive electrolyte circulation mechanism configured to supply and circulate the positive electrolyte to the battery cell, and a negative electrolyte circulation mechanism configured to supply and circulate the negative electrolyte to the battery cell.

Abstract: Disclosed herein are provided a lithium secondary battery capable of improving an output characteristic, a life characteristic, and stability of electrode adhesion by using a binder containing dopamine-polymerized heparin in a anode containing silicon. In accordance with an aspect of the present disclosure, a lithium secondary battery includes: an cathode; a anode; a separation film disposed between the cathode and the anode; and an electrolyte, wherein the anode comprises an electrode active material comprising a silicon-based material and graphite, a binder and a conductive material, and the binder comprises any one of heparin and lithium polyacrylate (LiPAA).

Abstract: There is provided a manufacturing method of a terminal plate including a conductive plate and a terminal that is welded to the conductive plate and that is made of a different material from a material of the conductive plate. This manufacturing method comprises an overlapping process of laying an end portion of the terminal on the conductive plate; a pressing process of pressing part of overlapping surfaces of the conductive plate and the terminal, after the overlapping process; and a welding process of welding at least part of a remaining region excluding the pressed part of the overlapping surfaces, by friction stir welding.

Abstract: A battery pack comprises first and second battery cells stacked in a vertical direction and a safety device that connects a first electrode lead provided in the first battery cell to a second electrode lead provided in the second battery cell to allow current to flow therebetween or separates the first electrode lead and the second electrode lead from each other to break the current when the first and/or second battery cells swell due to overcharging and/or overcurrent. In particular, the safety device comprises a connection member that electrically connects the first and second electrode leads to each other and a movable member that linearly moves the connection member when the first and second battery cells swell and separates the first electrode lead and the second electrode lead from each other, thereby breaking the current.