125 DEG C high temperature long life aluminum electrolysis capacitor, production method thereof and special electrolysis liquid

An aluminum electrolytic capacitor and electrolyte technology, applied in electrolytic capacitors, liquid electrolytic capacitors, capacitors, etc., can solve problems such as anode corrosion and achieve the effect of high ripple current resistance
CN101483101AInactive Publication Date: 2009-07-15FOSHAN SANSHUI RIMING ELECTRONCS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FOSHAN SANSHUI RIMING ELECTRONCS
Publication Date
2009-07-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to the manufacture field of capacitor, specifically to a high temperature (125 DEG C) long life electrolytic capacitor, its manufacturing method and its special electrolyte. The capacitor is formed by manufacturing a capacitor core package by coiling together the cathode foil, cathode foil, electrolytic paper and leading-out wires; dipping the core packages in the electrolyte; and then putting in the aluminum shell; and sealing by the plug. The electrolyte has 85-88 parts of solvent composition, 5.5-11 parts of solute, 1-1.5 parts of additives and 3-5 parts of high temperature stabilizer. The capacitor has a low impedance, high-profile current resistance, long-life (5,000 hours in durability test at 125 DEG C).
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Description

technical field

[0001] The invention relates to the field of capacitor manufacturing, in particular to a high-temperature 125°C long-life aluminum electrolytic capacitor, its manufacturing method and its special electrolyte. Background technique

[0002] With the rapid development of electronic technology, more and more aluminum electrolytic capacitors are used in high-temperature occasions, such as high-power energy-saving lamps and electrodeless lamps in green lighting; engine control circuits in automotive electronics, and electronic circuits in HID headlights. , Both require long-life aluminum electrolytic capacitors at 125°C.

[0003] There are two major technical difficulties in the production of long-life 125°C aluminum electrolytic capacitors. The first is the working electrolyte, which must have good stability at a high temperature of 125°C; the other difficulty is that it is easy to induce sealing glue under long-term high temperature and high pressure The plug pr...

Claims

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