Electrolyte of medium-voltage and high-voltage aluminium electrolytic capacitors and preparation method thereof

A technology of aluminum electrolytic capacitors and preparation methods, applied in the direction of electrolytic capacitors, capacitors, circuits, etc., to achieve the effects of less preparation links, short heating time, and easy control

Active Publication Date: 2012-10-31
黄山振州电子科技股份有限公司
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  • Electrolyte of medium-voltage and high-voltage aluminium electrolytic capacitors and preparation method thereof

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Embodiment Construction

[0021] The specific implementation of the present invention will be described in further detail below through the description of the embodiments, so as to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present invention.

[0022] The invention relates to an electrolytic solution for a medium-high voltage aluminum electrolytic capacitor. In order to overcome the defects in the prior art and realize the invention goal of satisfying the EU REACH regulation on boric acid substances of high concern, the technical solution adopted by the present invention is as follows:

[0023] The components contained in the electrolyte of the medium and high voltage aluminum electrolytic capacitors and their proportions to the total mass are: ethylene glycol, 80%-82%; deionized water, 2%-3%; ammonium adipate, 10%- 11%; sebacic acid, 4% to 5%; p-nitrobenzoic acid, 0.20% to 0.25%; 2-4 dinitrophenol, 0....

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Abstract

The invention discloses an electrolyte of a medium-voltage and high-voltage aluminium electrolytic capacitors, comprising the following ingredients and percentage of the ingredients in total mass: 82% of ethylene glycol, 2% of deionized water, 10% of ammonium adipate, 5% of sebacic acid, 0.25% of p-nitrobenzoic acid, 0.25% of 2,4-dinitrophenol, and 0.5% of ammonium phosphate. By adopting the technical scheme, the management and the control requirements of European Union REACH (registration, evaluation, authorization and restriction of chemicals) laws and regulations on substances of very high concern are met; the sparking voltage and the cationic repair oxidation capacity of the electrolyte are improved, and the precipitation of hydrogen and the generation of water during a working process are reduced, so that the high-quality working electrolyte is obtained; 200000 times of the failure-free continuous starting of the electrolytic capacitors used for the starting of a compressor can be realized while new substances are used for replacing the original boric acid substances, so that the electrolytic capacitors are capable of bearing the working voltage of 400 V; and the electrolyte is short in heating time, less in preparation links, easy in control on preparation temperature, and capable of obviously improving the use performance of the aluminium electrolytic capacitors.

Description

technical field [0001] The invention belongs to the technical field of chemical products and production, and relates to chemical products used in electrical components and production technology thereof. More specifically, the present invention relates to an electrolyte solution for medium and high voltage aluminum electrolytic capacitors. The invention also relates to a preparation method of the electrolyte. Background technique [0002] The core component of refrigerators, freezers, air conditioners and other household appliances - the motor, its performance and quality play a decisive role in the performance and life of household appliances, and these motors are frequently and irregularly started, which is inseparable from another core component - - Starting capacitor. [0003] The starting capacitors for motors are generally aluminum electrolytic capacitors. As the core factor affecting the quality of aluminum electrolytic capacitors, the importance of the electrolyte ...

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Application Information

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IPC IPC(8): H01G9/035
Inventor 何建何平洲王敏敏
Owner 黄山振州电子科技股份有限公司
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