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Title:
ELECTROLYTE SOLUTION FOR ELECTROLYTIC CAPACITOR
Document Type and Number:
Japanese Patent JP2000331886
Kind Code:
A
Abstract:

To provide a high conductivity and make the high temp. life characteristic good by using a solvent contg. water as a main component and adding a chelating agent.

An electrolyte soln.-impregnated capacitor element is set in a closed bottom cylindrical Al armor case, a butyl rubber seal is inserted in the opening end of this case, and the end of the armor case is formed by drawing to seal an electrolytic capacitor. A chelating agent is added to a solvent contg. water as a main component in the electrolyte soln. used here, thereby raising the water content up to 100 wt.% in the solvent to obtain a high conductivity of the electrolyte. This also prevents the capacitor case from bulging or opening valve. The electrolyte soln. uses a solvent contg. water as a main component and hence no trouble such as fire happens in the event of capacitor failures because of using a high voltage out of rating, etc.


Inventors:
SUGIYAMA TAKAYUKI
TAMAMITSU KENJI
OZAWA TADASHI
ITO HIDEHIKO
Application Number:
JP2000075129A
Publication Date:
November 30, 2000
Filing Date:
March 17, 2000
Export Citation:
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Assignee:
NIPPON CHEMICON
International Classes:
H01G9/035; (IPC1-7): H01G9/035
Domestic Patent References:
JPH0277109A1990-03-16
JPS63268224A1988-11-04
JPH01202809A1989-08-15
JPS62272514A1987-11-26
JPS617616A1986-01-14



 
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