| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method of a package material for polymer battery which has electrolyte resistance characteristics and solvent resistance, and is superior in heat seal property, adhesiveness and tight adhesion with an electrode terminal, and excellent in production efficiency, while achieving great cost reduction. SOLUTION: Aluminum foil is degreased, cleaned, and surface treated as required, and then by using a coating agent in which maleic PP particles are dispersed, the maleic PP is coated on the aluminum foil surface by photogravure coating to form a maleic PP layer. Then, after drying, the aluminum foil with maleic PP layer laminated thereon is rolled out, and molten and kneaded polypropylene is extruded from a die as a film of molten resin on the maleic PP layer, then, an extrusion coated PP layer is formed by an extrusion laminate method by taking up through a cooling roll. COPYRIGHT: (C)2011,JPO&INPIT |
