Collector and electric double layer capacitor

Details Collector and electric double layer capacitor Collector and electric double layer capacitor

1998-07-10

1999-12-21

Reichard, Dean A.

Electricity: electrical systems and devices

Electrolytic systems or devices

Double layer electrolytic capacitor

361503, H01G 900

Patent

active

060057653

ABSTRACT:
A conductive rubber film having a volume resistivity in the direction perpendicular to the film surface of 0.1-5 .OMEGA.cm is obtained by blending 100 parts by weight of a rubber component comprising rubber with an iodine value of 30 or less (e.g. hydrogenated acrylonitrile butadiene copolymer rubber) with 5 to 100 parts by weight of conductive carbon having a specific surface area of 20 to 2000 m.sup.2 /g, and forming the blend into a film of 0.01-0.2 mm thick by casting by the use of a solvent (e.g. methyl isobutyl ketone). The film is made into collectors and an electric double layer capacitor using an aqueous electrolyte is produced by using the collectors. This capacitor has a low internal resistance, namely, it can be obtained as a high-output capacitor.

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