| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminated film sheathed battery which is superior in sealing characteristic of the outer rim part even in a power feeding terminal to which large electric current can be supplied, and which can maintain the sealing characteristic for a long period. SOLUTION: In the laminated film sheathed battery 1, the positive electrode conductive terminal 3, the negative electrode conductive terminal 4 are pinched between the laminated films 2a, 2b by being deflected to the laminated film 2a side against a heat fused face P of the outer rim part. The thickness t1 of a film 7a made of PP is made thicker than the thickness t2 of a film 7b made of PP. The ratio of the thickness t1 of the PP made film 7a and the thickness t2 of the film 7b made of PP against the thickness t3 of the positive electrode conductive terminal 3, the negative conductive terminal 4 is 0.15 and more. The circumference of the positive electrode conductive terminal 3 and the negative electrode conductive terminal 4 is filled up without any gap with PP resin of the films 7a, 7b made of PP which is softened at the time of heat welding. COPYRIGHT: (C)2005,JPO&NCIPI
|
