Method of making porous polymer containing separators for electr

Details Method of making porous polymer containing separators for electr Method of making porous polymer containing separators for electr

1976-09-13

1978-07-04

Miller, Jr., Stanley D.

Electricity: electrical systems and devices

Miscellaneous

29570, 264 49, 429250, 521 61, H01G 900, B23B 300

Patent

active

040992187

ABSTRACT:
A method of making porous polymer containing separators adapted for use in electrolytic electrical devices, particularly electrolytic capacitors, the separator capable of absorbing and retaining electrolyte and devices utilizing the resultant separators. The method includes the steps of loading a semi-liquid or liquid polymer containing material with at least one compound and at least one modifier material, solidifying the polymer containing material, and removing at least some of the compound to provide a porous polymer containing separator capable of absorbing and retaining electrolyte. When the separators of the present invention are utilized in electrolytic capacitors, especially aluminum electrolytic capacitors, reductions in capacitor volume without significant loss of capacitance are realized and capacitor manufacture is facilitated.

REFERENCES:
patent: 3020597 (1962-02-01), Smith-Johannsen
patent: 3661645 (1972-05-01), Strier et al.
patent: 3714307 (1973-01-01), Shikada
patent: 3836829 (1974-09-01), Eustance
patent: 3908157 (1975-09-01), Ross et al.
patent: 3930979 (1976-01-01), Vallance
patent: 3940667 (1976-02-01), Pearce
patent: 3982335 (1976-09-01), Cunningham et al.

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