METHOD FOR INSPECTING SELF-DISCHARGE OF A POWER STORAGE DEVICE AND METHOD FOR PRODUCING THE POWER STORAGE DEVICE

A method for inspecting self-discharge of a power storage device (1) includes: a) continuously applying (S7, S27) a continuous power-supply voltage (VPc) to the power storage device (1) that has been charged in advance from an external power supply (EP1, EP2) to a first device voltage (VBso), the continuous power-supply voltage (VPc) being higher than the first device voltage (VBso) and having a constant magnitude; b) detecting (S8, S28) a power-supply current (IP, IP(n)) flowing from the external power supply (EP1, EP2) to the power storage device (1); and c) determining (S10) a self-discharge state of the power storage device (1) based on the detected power-supply current (IP, IP(n)).