Metallized film for secondary battery positive electrode and manufacturing method thereof

• Main Authors: TSUJI TERUAKI, FUJI NOBUO
• Format: Patent
• Language: Chinese; English
• Published: 03.10.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The present invention addresses the problem of obtaining: a metallized film in which contact resistance does not increase even if a conductive film layer is formed on the surface of a resin, and which can be transported without breaking; and a method for manufacturing the metallized film. An aluminum metal film is formed on at least one surface of a resin film, and the specular reflectance at a wavelength of 555 nm on the surface of the metal film that does not come into contact with the resin film is 30% or less. 本发明的课题在于得到即使在树脂表面形成导电性薄膜层，接触电阻也不会上升而且能够在不断裂的情况下进行搬送的金属化薄膜及其制造方法。能够通过在树脂薄膜的至少一侧的表面形成有铝金属膜、不与该树脂薄膜接触的金属膜表面的波长555nm的镜面反射率为30％以下的二次电池正极用金属化薄膜来解决。