Cells and gas depolarized batteries and method for producing sam

Details Cells and gas depolarized batteries and method for producing sam Cells and gas depolarized batteries and method for producing sam

1997-07-25

1999-01-12

Nuzzolillo, Maria

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

429154, 429155, H01M 6648

Patent

active

058585745

ABSTRACT:
A bipolar rechargeable battery comprises a vessel with an insulated liner and an interior region for bulk storage of a gas which serves as an electrode active material. A plurality of cells are nested within the vessel, each including a metallic bipolar plate having a circular base and an integral insulated hydrophobic upstanding side wall of truncated conical shape diverging with increased distance from the base. The essential novelty of the present batteries resides in the application of a hydrophobic insulating coating of a chlorotrifluoro olefin polymer, preferably a copolymer of ethylene and chlorotrifluoro ethylene, over the interior and exterior surfaces of the conical side wall of each bipolar plate.

REFERENCES:
patent: 4877694 (1989-10-01), Solomon et al.
patent: 5652073 (1997-07-01), Lenhart et al.
patent: 5752987 (1998-05-01), Yang

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