Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Plural cells
Patent
1997-03-03
1999-03-16
Nuzzolillo, Maria
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Plural cells
429157, 429158, 429167, 429210, H01M 646, H01M 648
Patent
active
058828176
ABSTRACT:
Plastic hydrophobic material is bonded to a metallic sheet member such that the resulting sandwich structure is impervious to electrochemical delamination. First and second films of the plastic hydrophobic material are applied to opposed surfaces of the metallic sheet member and extend beyond a peripheral edge of the metallic sheet member to form contiguous border portions. A plurality of perforations are formed through the metallic sheet member at locations spaced from its peripheral edge. A resulting sandwich structure of the metallic sheet member and the first and second films are compressed and simultaneously the temperature is raised to the sintering temperature of the hydrophobic film material. The first and second films are caused to melt sufficiently at their interfaces to cause an intermixing of the juxtaposed material thereof throughout the region of the border portions and throughout the regions of the perforations. When the resulting sandwich structure is cooled to room temperature and the films return to the hardened state, they are firmly bonded together in the region of the border to form an integral fringe which seals the peripheral edge of the metallic sheet member from ambient conditions and throughout the regions of the perforations such that the first and second films, respectively, are drawn firmly into engagement with the metallic sheet member by reason of the differential coefficient of thermal expansion between the metallic sheet member and the hydrophobic film material.
REFERENCES:
patent: 5395706 (1995-03-01), Hall
patent: 5395708 (1995-03-01), Hall
patent: 5652073 (1997-07-01), Lenhart et al.
Hall John C.
Inenaga Bruce
Nuzzolillo Maria
Space Systems Loral, Inc.
Weiner Laura
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