| 摘要 |
PROBLEM TO BE SOLVED: To provide a secondary battery inspection method which prevents false determination.SOLUTION: A secondary battery inspection method comprises the steps of: acquiring internal resistance of a secondary battery to be inspected (step S1); acquiring temperature difference between before and after charging the secondary battery (steps S2, S4); and determining quality of the secondary battery on the basis of the acquired internal resistance, the temperature difference, and a discriminant function determined in advance (step S5). For example, on the basis of one of the acquired internal resistance and temperature difference and the discriminant function, quality criterion for the other one is determined, and the quality can be determined on the basis of a result of comparing a value of the other one and the quality criterion. |
