BATTERY PACKAGING MATERIAL

• Main Authors: OJIRI TETSUYA, YAMASHITA RIKIYA, AMANO MAKOTO
• Format: Patent
• Language: English; Japanese
• Published: 09.05.2016
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

PROBLEM TO BE SOLVED: To provide a battery packaging material showing an excellent ink printing characteristic on a base layer surface, and a method for manufacturing the battery packaging material.SOLUTION: The battery packaging material comprises a laminate having at least a base layer 1, a metal layer 3, and a sealant layer 4 successively stacked, in which a surface of the base layer 1 shows a wet tensile strength of 32 dyne or more. The method for manufacturing the battery packaging material includes: a stacking step of stacking at least a base layer 1, a metal layer 3, and a sealant layer 4 to obtain a laminate; and a corona treatment step of printing at least a part of the surface of the base layer 1 with ink and subjecting the surface of the base layer 1 to a corona treatment to obtain a wet tensile strength of 32 dyne or more on the surface of the base layer 1. An adhesive layer 2 is stacked between the base layer 1 and the metal layer 3; an adhesive layer is further stacked between the metal layer 3 and the sealant layer 4; and a lubricant is present on a surface of the sealant layer 4.SELECTED DRAWING: Figure 1 【課題】基材層表面におけるインキの印刷特性に優れた電池用包装材料及びその製造方法の提供。【解決手段】少なくとも、基材層１と、金属層３と、シーラント層４とが順次積層された積層体からなり、基材層１の表面の濡れ張力が、３２ｄｙｎｅ以上である、電池用包装材料。また、少なくとも、基材層１と、金属層３と、シーラント層４とを積層して積層体を得る積層工程と、基材層１表面の少なくとも一部にインキを印刷し、基材層１の表面にコロナ処理を施して、基材層１の表面の濡れ張力を３２ｄｙｎｅ以上にするコロナ処理工程と、を備える、電池用包装材料の製造方法。基材層１と金属層３との間に接着層２が積層され、金属層３とシーラント層４の間に接着層が更に積層され、シーラント層４の表面に滑材が存在している、電池用包装材料。【選択図】図１