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AssigneeToray Industries, Inc.
InventorsTakashi ARAI, Dai NISHIMURA, Takashi ANDO, Nobuo FUJI, Teruaki TSUJI
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The present invention provides a metalized film that has contact resistance lower than surface resistance even when a conductive thin film layer is formed on a resin surface, has excellent post-processing suitability, such as the transportability thereof without breaking, and also has excellent adhesion with a positive electrode active material. In the metallized film for a secondary battery positive electrode, an aluminum metal layer is formed on at least one surface of a resin film, and when the crystal orientation of a cross section of the aluminum metal layer is imaged by the ACOM-TEM method, the surface area of each of crystal regions respectively having <001>, <011>, and <111> orientations is 75% or less of the total surface area.
A metalized film for secondary battery positive electrodes comprising a resin film and an aluminum metal layer laid on at least one surface thereof, wherein the aluminum metal layer has a cross section characterized by having crystal orientation such that crystal regions oriented in any of <001>, <011>, and <111> directions account for not more than 75% of the total area as measured by the ACOM-TEM method.
Dependencies are inferred from the claim text.