ADHESIVE TAPE FOR BATTERY EXTERIOR

• Main Authors: KAWABE SHIGEKI, SHIMOKAWA DAISUKE
• Format: Patent
• Language: English; Japanese
• Published: 15.03.2018
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; BASIC ELECTRIC ELEMENTS; CHEMISTRY; DYES; ELECTRICITY; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; PAINTS; POLISHES; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; USE OF MATERIALS AS ADHESIVES

PROBLEM TO BE SOLVED: To provide an adhesive tape for battery exterior preventing lag on an adhesive surface (paste lag) and liquid invasion when applied to a saline water impregnation test and useful as for exterior of a battery.SOLUTION: There is provided an adhesive tape 100 for battery exterior having a substrate 10 and an adhesive layer 20 arranged in one side of the substrate, and having a value calculated by loss elastic modulus of the adhesive tape for battery exterior at 70°C (G'')×thickness of the adhesive layer (mm)/thickness of the adhesive tape for battery exterior (mm) of 8×103 Pa or more, a value calculated by loss elastic modulus of the adhesive tape for battery exterior at 23°C (G')×thickness of the adhesive layer (mm)/thickness of the adhesive tape for battery exterior (mm) of 3×105 Pa and adhesive force of the adhesive tape for battery exterior to stainless at 23°C of 2 N/10 mm or more.SELECTED DRAWING: Figure 1 【課題】粘着面におけるズレ（糊ズレ）、塩水浸漬試験に供した際の液侵入を防止して、電池の外装用として有用な電池外装用粘着テープを提供する。【解決手段】基材１０と、該基材の片面に配置された粘着剤層２０とを備える電池外装用粘着テープ１００であって、該電池外装用粘着テープの７０℃における損失弾性率（Ｇ''）×該粘着剤層の厚み（ｍｍ）／電池外装用粘着テープの厚み（ｍｍ）で算出される値が、８×１０３Ｐａ以上であり、該電池外装用粘着テープの２３℃における貯蔵弾性率（Ｇ'）×該粘着剤層の厚み（ｍｍ）／電池外装用粘着テープの厚み（ｍｍ）で算出される値が、３×１０５Ｐａ以下であり、該電池外装用粘着テープの２３℃におけるステンレスに対する粘着力が、２Ｎ／１０ｍｍ以上である、電池外装用粘着テープ。【選択図】図１