Insulating defect test apparatus, and insulating failure check method using the same, method for producing an electrochemical cell

The present invention provides a excludable accurately insulation defective, after insulation defect inspection, to provide a method for producing a re-usable electrochemical cell, so as to protrude the tip of the metal terminal 21 to the outer body 10 externally in the electrical method of manufacturing a cell 1 formed by sealing housing the electrochemical cell body 20, an impulse voltage is applied between the metal terminal 21 and the metal foil layer 12, between the metal terminals 21 and the metal foil layer 12 measuring the waveform of the voltage applied to the electrostatic capacitance of to perform insulation failure inspection process.