INSPECTION METHOD OF BATTERY

摘要

PROBLEM TO BE SOLVED: To provide an inspection method of a battery capable of discriminating and accurately ejecting a defective products caused by a micro-short-circuit, concerning the inspection method of the battery for determining the quality by a terminal voltage difference▵V between a terminal voltage V1 before aging of the battery and a terminal voltage V2 after aging. SOLUTION: In this inspection method, a reference valueΔVB determined by assuming the terminal voltage drop quantity of a defective battery having an internal micro-short-circuit is set relative to the mean valueΔVA of the terminal voltage differenceΔV, and a battery having smallerΔV than the value ofΔVA-ΔVB is determined to be a defective product. COPYRIGHT: (C)2004,JPO