Electrolyte of wide-temperature aluminium electrolytic capacitor and manufacturing method thereof

Abstract

The invention relates to a manufacturing method for electrolyte of a wide-temperature aluminium electrolytic capacitor, comprising the raw materials of ethanediol, ammonium adipate, ammonium sebacate, ammonium formate, p-nitrophenol and ammonium hypophosphite. The method comprises the following steps of heating the ethanediol in parts by weight to 50-60 DEG C, adding the other raw materials in parts by weight in the ethanediol, heating to 130-135 DEG C while stirring, maintaining the constant temperature of 130-135 DEG C for 20-30min, and cooling to the room temperature to prepare the electrolyte of the wide-temperature aluminium electrolytic capacitor. The invention is mainly applied in electric products, electricity control systems, multifunctional meters, power supply parts of computers, various home appliances and other fields. The aluminium electrolytic capacitor prepared from the electrolyte obtained in the invention can produce no high atmospheric pressure and has stable performance in the environment with the temperature no more than 125 DEG C.

Description

technical field The invention relates to an electrolytic solution of an electrolytic capacitor and a manufacturing method thereof, in particular to an electrolytic solution of a wide-temperature aluminum electrolytic capacitor and a manufacturing method thereof. Background technique The current production of wide temperature aluminum electrolytic capacitors has a working environment temperature in the range of -40°C to 105°C. When the working temperature exceeds 105°C, the leakage current of the capacitor increases rapidly, the air pressure in the aluminum shell increases, and even explodes and fails. The main reason is that the electrolyte solution of the current wide temperature aluminum electrolytic capacitor has poor stability, large loss value and high leakage current in a high temperature environment above 105 °C. Contents of the invention The object of the present invention is to overcome the above-mentioned deficiencies of the prior art and provide a kind of elect...

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Problems solved by technology

The current production of wide temperature aluminum electrolytic capacitors has a working environment temperature in the range of -40°C to 105°C. When the working temperature exceeds 105°C, the leakage current of the capacitor increases rapidly, the air pressure in the aluminum shell increases, and even explodes and fails. The main reason is that the electrolyte solution of the current wide temperature aluminum electrolytic capacitor has poor stability, large loss value and high leakage current in a high temperature environment above 105 °C.

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