METHOD AND DEVICE FOR INSPECTING BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a test method and a short-circuit test device for minute short-circuit between electrodes with high reliability and in a short time for providing a reliable long-life battery, in the test method and the test device for detecting a short-circuit between the electrodes of a secondary battery having a structure to separate the positive electrode and the negative electrode by a separator. SOLUTION: This method for testing short-circuiting in the battery consisting of a positive electrode, a negative electrode, a separator arranged so as to separate both the electrodes and electrolyte enables to determine short-circuiting by a resistance by making the electrolyte solid state and measuring alternating current impedance between the positive electrode and the negative electrode.