Electric double-layer capacitor

Details Electric double-layer capacitor Electric double-layer capacitor

1997-03-28

1999-01-12

Ledynh, Bot L.

Electricity: electrical systems and devices

Electrolytic systems or devices

Double layer electrolytic capacitor

361512, 361521, 29 2503, H01G 900, H01G 902, B65D 5116

Patent

active

058597611

ABSTRACT:
An electric double-layer capacitor is provided, which decreases the number of necessary components to improve the productivity of the capacitor. The capacitor includes at least one basic cell. Each of the at least one basic cell has (a) an insulative, tubular gasket having a tubular inner space and opening ends, (b) a pair of polarizable electrodes made of a solid activated-carbon, (c) a sheet-like, porous, non electron-conductive separator sandwiched between the pair of electrodes; and (d) a pair of conductive, sheet-like collectors placed to close the opening ends of the gasket. The pair of collectors are electrically connected to a pair of external terminals. The pair of electrodes and the separator are placed in the inner space of the gasket. The gasket is made of a thermoplastic resin and is formed by injection molding. The separator and the pair of electrodes are unified with the gasket. The unification of the separator and the pair of electrodes with the gasket is performed during the molding process of the gasket.

REFERENCES:
patent: 3652902 (1972-03-01), Hart et al.
patent: 4023079 (1977-05-01), Selover, Jr. et al.
patent: 5121301 (1992-06-01), Kurabayashi et al.
patent: 5172307 (1992-12-01), Tabuchi et al.
patent: 5227960 (1993-07-01), Kunishi et al.
patent: 5367431 (1994-11-01), Kunishi et al.
patent: 5428501 (1995-06-01), Bruder
T. Saito, et al., "Development of High-Power Electric Double Layer Capacitors", NEC Technical Journal, vol. 47, No. 10, 1994, pp. 91-97.

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