BATTERY PACKAGING MATERIAL, METHOD FOR PRODUCING THE SAME, AND BATTERY

• Main Authors: YAMASHITA RIKIYA, HAYAKAWA YOSUKE, YASUDA DAISUKE, TSUMORI KAORU, YAMASHITA TAKANORI
• Format: Patent
• Language: English; Japanese
• Published: 06.06.2019
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; TRANSPORTING

To provide a battery packaging material including at least a base material layer, a barrier layer, an adhesive layer, and a thermally fusible resin layer in this order, capable of effectively suppressing crushing of the adhesive layer when thermally fusing the thermally fusible resin layer and exerting high seal strength in a high temperature environment.SOLUTION: The battery packaging material of a first aspect of the present invention is composed of a laminate including at least a base material layer, a barrier layer, an adhesive layer, and a thermally fusible resin layer in this order. The adhesive layer has a logarithmic attenuation rate ΔE of 2.0 or less at 120°C in a rigid pendulum measurement.SELECTED DRAWING: None 【課題】 本発明の第１の態様は、少なくとも、基材層と、バリア層と、接着層と、熱融着性樹脂層とをこの順に備える積層体から構成された電池用包装材料において、熱融着性樹脂層同士を熱融着させた際の接着層の潰れが効果的に抑制され、高温環境において高いシール強度を発揮する電池用包装材料を提供する。【解決手段】 本発明の第１の態様の電池用包装材料は、少なくとも、基材層と、バリア層と、接着層と、熱融着性樹脂層とをこの順に備える積層体から構成されており、前記接着層は、剛体振り子測定における１２０℃での対数減衰率ΔＥが２．０以下である。【選択図】なし