Pressure-sensitive adhesive tape for electrochemical device

Pressure-sensitive adhesive tape for electrochemical device

To provide a pressure-sensitive adhesive tape for an electrochemical device that has an excellent adhesive strength and that achieves, for example, the protection of an electrode, the suppression of active material separation, and the fixing of a wound end of a laminate composed of electrode plates,...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: KAWANISHI, MICHIROU, HANAI, HIROOMI
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
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
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Beschreibung
Zusammenfassung:To provide a pressure-sensitive adhesive tape for an electrochemical device that has an excellent adhesive strength and that achieves, for example, the protection of an electrode, the suppression of active material separation, and the fixing of a wound end of a laminate composed of electrode plates, a separator, and the like when the laminate is wound and packed into a battery case, without adversely affecting the electrochemical device. The pressure-sensitive adhesive tape for an electrochemical device of the present invention includes a pressure-sensitive adhesive layer composed of an acrylic pressure-sensitive adhesive on at least one side of a plastic base. The acrylic pressure-sensitive adhesive includes an acrylic polymer that is obtained by polymerization of a monomer component containing at least an alkyl (meth)acrylate and a hydroxyl group-containing monomer. The acrylic polymer has an acid value of 1.0 or less and a glass transition temperature (Tg) of -40°C or more.