| 摘要 |
PROBLEM TO BE SOLVED: To provide an abnormality detecting device of a battery and an abnormality detecting method of the battery capable of detecting defects of an inner resin layer (an insulating layer) of an outer packaging material generated in manufacturing. SOLUTION: The existence or nonexistence of defects of an insulating layer (a polypropylene resin layer 27) of a laminated film 17 is decided based on a resistance value between a metal layer (an aluminum alloy layer 25) of the laminated film and one battery terminal (a negative electrode tab 15) by applying a DC voltage or an AC voltage between the metal layer (the aluminum alloy layer 25) of the laminated film 17 and one battery terminal (the negative electrode tab 15). COPYRIGHT: (C)2009,JPO&INPIT
|
