Battery with laminated film covering and fabrication method

Details Battery with laminated film covering and fabrication method Battery with laminated film covering and fabrication method

2011-04-26

2011-04-26

Yuan, Dah-Wei D (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Cell enclosure structure, e.g., housing, casing, container,...

C429S162000, C429S163000

Reexamination Certificate

active

07931982

ABSTRACT:
A film-covered battery1includes battery element6and laminate films3and4for sealing battery element6. Laminate films3and4are realized by laminating a heat-seal resin layer and a metal foil layer and seal battery element6by arranging the films on either side of battery element6with the heat-seal resin layers disposed on the inside and then heat-sealing at sealing areas3aand4aon the outer peripheries of the films. The areas of the laminate films3and4other than sealing areas3aand4aare electron beam irradiation areas3band4bthat are irradiated by an electron beam. Cross-linked structures are formed in the heat-seal resin layers of electron beam irradiation areas3band4bby irradiation by an electron beam.

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