Cryogenic capacitors

Details Cryogenic capacitors Cryogenic capacitors

2006-10-21

2008-08-05

Ha, Nguyen T. (Department: 2831)

Electricity: electrical systems and devices

Electrolytic systems or devices

Double layer electrolytic capacitor

C361S503000, C361S504000, C361S508000, C361S512000, C361S301400

Reexamination Certificate

active

07408764

ABSTRACT:
This invention describes a means by which performance characteristics of capacitors can be improved. This is achieved by reducing the temperature, preferably but not exclusively to cryogenic temperatures below 100 K. The dielectric strength, dielectric losses, equivalent series resistance, and plate losses in many capacitors, such as film capacitors, improve as the temperature is decreased. Current carrying capacity is improved. A capacitor bank exhibits energy densities up to four times those of conventional, room-temperature capacitor banks. Cryogenic capacitors can be combined with cryogenically operated semiconductors or with superconductors to reduce the size, weight, and losses of a complete system.

REFERENCES:
patent: 4599677 (1986-07-01), Lawless et al.
patent: 5623724 (1997-04-01), Gurkovich et al.
patent: 5898561 (1999-04-01), Mandelcorn et al.
patent: 6411491 (2002-06-01), Lawless et al.
patent: 7126810 (2006-10-01), Mueller et al.

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