Electrolyte for electrolytic capacitors and electrolytic capacit

Details Electrolyte for electrolytic capacitors and electrolytic capacit Electrolyte for electrolytic capacitors and electrolytic capacit

1989-01-17

1995-10-10

Reynolds, Bruce A.

Electricity: electrical systems and devices

Electrolytic systems or devices

Liquid electrolytic capacitor

252 622, H01G 902

Patent

active

054575990

ABSTRACT:
This invention relates to an electrolyte for use in electrolytic capacitors and also to an electrolytic capacitor using the electrolyte. The solute for the electrolyte is a quaternary ammonium salt of either a carboxylic acid selected from the group consisting of phthalic acid, tetrahydrophthalic acid, hexahydrophthalic acid and maleic acid, or an alkyl or nitro-substituted compound of the acid. The electrolytic capacitor has improved low temperature characteristics and an improved variation in characteristics at high temperatures in relation to time with a prolonged life.

REFERENCES:
patent: 4117531 (1978-09-01), Ross et al.
patent: 4377692 (1983-03-01), Barry et al.
patent: 4715976 (1987-12-01), Mori et al.
patent: 4734821 (1988-03-01), Morimoto et al.
patent: 4821153 (1989-04-01), Kuwae et al.

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