INSPECTION DEVICE FOR SECONDARY BATTERY, INSPECTION METHOD FOR THE SAME, AND PRODUCTION METHOD FOR THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an inspection device and the like for a secondary battery allowing grasping of a state of SEI film of a secondary battery, particularly a lithium ion secondary battery.

SOLUTION: Impedance acquisition means acquires impedance of a secondary battery. Determination means determines a state of SEI film of the secondary battery based on the impedance acquired by the impedance acquisition means.

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