Granulated lead oxides with teflon

Details Granulated lead oxides with teflon Granulated lead oxides with teflon

1980-02-14

1981-02-24

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Separator, retainer or spacer insulating structure

429228, 429238, 429217, 296231, H01M 416

Patent

active

042528720

ABSTRACT:
An improvement in the production of tube electrodes for lead storage batteries comprising mixing a small amount (0.1 to 3 weight percent) of polytetrafluoroethylene (PTFE) with lead powder, the mixture is heated and shear stresses are applied thereto sufficient to convert substantially all of the PTFE in the mixture to fibrous form and to form a non-powdery dough. The dough is then granulated and the doughy granules about 100.mu. to 500.mu. in major dimension are used for filling tube elctrodes of a lead-acid storage battery.

REFERENCES:
patent: 571143 (1896-11-01), Woodward
patent: 3647546 (1972-03-01), Cording
patent: 4011370 (1977-03-01), Eckerbom
patent: 4025701 (1977-05-01), Sundberg
patent: 4071946 (1978-02-01), Nilsson
patent: 4110519 (1978-08-01), Nilsson

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