Aluminum electrolytic capacitor

Details Aluminum electrolytic capacitor Aluminum electrolytic capacitor

2005-11-29

2005-11-29

Thomas, Eric W. (Department: 2831)

Electricity: electrical systems and devices

Electrolytic systems or devices

Liquid electrolytic capacitor

C361S511000, C252S062200

Reexamination Certificate

active

06970343

ABSTRACT:
An aluminum electrolytic capacitor produced by winding an anode foil11and a cathode foil12via a separator13impregnated with a driving electrolyte solution14, wherein the driving electrolyte solution14comprises a polar solvent, at least one electrolyte selected from inorganic acids, organic acids, inorganic acid salts, and organic acid salts, and a random copolymer of polyoxyethylene and polyoxypropylene having a hydroxy group at one end and a hydrogen group at the other end and the separator13is formed by overlaying a cellulosic fiber-mixed paper, a cellulosic fiber paper, and a cotton linter. The present invention provides a long-lasting driving electrolyte solution higher in electric conductivity and superior in the chemical self-restoring ability and heat resistance at high temperature, and an aluminum electrolytic capacitor using the same.

REFERENCES:
patent: 6185089 (2001-02-01), Mita et al.
patent: 6621684 (2003-09-01), Shimamoto et al.
patent: 6671166 (2003-12-01), Penneau et al.
patent: 5-226189 (1993-09-01), None
patent: 2001-313234 (2001-11-01), None

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