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 includes: a) continuously applying a continuous power-supply voltage to the power storage device that has been charged in advance from an external power supply to a first device voltage), the continuous power-supply voltage being higher than the first device voltage and having a constant magnitude; b) detecting a power-supply current flowing from the external power supply to the power storage device; and c) determining a self-discharge state of the power storage device based on the detected power-supply current.