20130260161 | BATTERY CASE PACKAGING MATERIAL FOR COLD MOLDING COMPRISING BIAXIALLY-STRETCHED POLYBUTYLENE TEREPHTHALATE FILM - A packaging material for cold forming, in particular a packaging material for a battery such as a lithium ion secondary battery or the like, that includes a biaxially-stretched polybutylene terephthalate film ensuring excellent cold-formability without sacrificing acid resistance and moisture-proofing and having excellent moisture-proofing, acid resistance, and cold-formability by utilizing the biaxially-stretched polybutylene terephthalate film as a base layer and/or a barrier material reinforcing layer in a battery case packaging material for cold forming. | 10-03-2013 |