| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a packaging material for cold molding, particularly a packaging material for a battery such as a lithium ion secondary battery, including a biaxially-stretched polybutylene terephthalate film excellent in moisture-proof properties, acid resistance and cold moldability, the packaging material for cold molding being capable of securing excellent cold moldability without losing acid resistance and moisture-proof properties by using a biaxially-stretched polybutylene terephthalate film as a base material layer and/or a barrier material reinforcing layer in a battery case packaging material for cold molding. <P>SOLUTION: A battery case packaging material for cold molding includes a barrier layer and a sealant layer laminated in the order, or includes a base material layer, a barrier layer, a barrier material reinforcing layer and a sealant layer laminated in the order. In the battery case packaging material for cold molding, a biaxially-stretched polybutylene terephthalate film is used as the base material layer and/or the barrier material reinforcing layer. <P>COPYRIGHT: (C)2012,JPO&INPIT |
