100V electrolytic capacitor and producing process thereof

A technology of electrolytic capacitors and electrolytic paper, applied in the direction of electrolytic capacitors, liquid electrolytic capacitors, capacitors, etc., can solve problems such as short load life, achieve the effects of prolonging life, improving temperature resistance, and increasing overall volume

Active Publication Date: 2014-04-02
FOSHAN LIMING ELECTRONICS GAOMING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a 100V electrolytic capacitor and its production process, aiming to sol

Method used

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  • 100V electrolytic capacitor and producing process thereof
  • 100V electrolytic capacitor and producing process thereof
  • 100V electrolytic capacitor and producing process thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0036] Take cathode foil and anode foil: electrocorrode cathode foil and anode foil, oxidize cathode foil and anode foil after electrocorrosion, and form an oxide film on the surface of cathode foil and anode foil; cut cathode foil, anode foil and insulating electrolytic paper, respectively The lead wire is connected with the cathode foil and the anode foil to form the negative electrode lead and the positive electrode lead, and the insulating electrolytic paper, the cathode foil and the anode foil are wound; the electrolyte is added, and the electrolyte is impregnated on the insulating electrolytic paper; the final assembly and crimping are carried out , charging, aging test and parameter detection.

[0037]In this embodiment, the composition of the electrolyte includes: 40% ethylene glycol, 40% glycerol, 10% γ-hydroxybutyrolactone, 5% ammonium benzoate, 2% azelaic acid EG solution, horse Ammonium hydrogen tomate 2.1%, o-nitroanisole 0.65%, citric acid 0.1%, phosphotungstic a...

Embodiment 2

[0041] This example is basically the same as Example 1, the difference is that in this example, the composition of the electrolyte includes: 70% ethylene glycol, 10% glycerol, 10% γ-hydroxybutyrolactone, ammonium benzoate 1%, azelaic acid EG solution 1%, ammonium hydrogen maleate 7.75%, o-nitroanisole 0.1%, phosphotungstic acid 0.1% and molybdic acid 0.05%.

[0042] In this embodiment, the voltage of the cathode foil is 5V, the capacity of the electrolytic capacitor is 22 μF, the diameter of the bottom surface of the housing is 10 mm, and the height is 16 mm.

Embodiment 3

[0044] This example is basically the same as Example 1, except that in this example, the composition of the electrolyte includes: 50% ethylene glycol, 20% glycerol, 19% gamma-hydroxybutyrolactone, ammonium benzoate 4%, azelaic acid EG solution 2%, ammonium hydrogen maleate 3.4%, o-nitroanisole 0.6%, citric acid 0.5% and phosphotungstic acid 0.5%.

[0045] In this embodiment, the capacity of the electrolytic capacitor is 33 μF, the diameter of the bottom surface of the shell is 10 mm, and the height is 20 mm.

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Abstract

The invention discloses a 100V electrolytic capacitor and a producing process thereof, wherein the capacitor comprises a shell, a core, a seal plug, a cathode lead and an anode lead; the core comprises a cathode foil and an anode foil and also comprises insulation electrolytic paper; components of electrolyte added to the insulation electrolytic paper comprise 40-70% of ethylene glycol, 10-40% of glycerin, 10-40% of gamma-hydroxybutyrate lactone, 1-10% of ammonium benzoate, 1-10% of azelaic acid EG (ethylene glycol) solution, 2-8% of ammonium hydrogen maleate, 0.1-0.9% of ortho-nitroanisole, 0-0.5% of citric acid, 0.1-0.5% of phosphotungstic acid and 0-0.1% of molybdic acid. The electrolytic capacitor is good in temperature resistance and long in service life, and achieves the load life of 10,000-15,000 hours under the condition of 105 DEG C.

Description

technical field [0001] The invention relates to an electrolytic capacitor, in particular to a 100V electrolytic capacitor and a production process thereof. Background technique [0002] The volume (size) of the electrolytic capacitor is an important factor restricting the performance of the electrolytic capacitor. How to increase the size of the electrolytic capacitor to improve the temperature resistance of the electrolytic capacitor and increase the life of the electrolytic capacitor is the research direction of existing technical personnel. The electrolytic capacitors in the prior art generally have a load life of 1000-2000 hours at 105°C (or above), and these capacitors have poor durability when used in tunnel (highway) lighting, submarine lighting, stadium lighting, advertising lighting, etc. , It needs to be replaced frequently, but due to the complexity of the site, the replacement is difficult and the cost is high. [0003] Therefore, the prior art still needs to be...

Claims

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Application Information

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IPC IPC(8): H01G9/145H01G9/04H01G9/035
Inventor 张锦成黄永福
Owner FOSHAN LIMING ELECTRONICS GAOMING
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