Electrolyte solution for electrolytic condenser

Abstract

The invention discloses an electrolyte solution for an electrolytic condenser. The electrolyte solution for the electrolytic condenser comprises 86-87 parts of ethylene glycol, 3.2-3.5 parts of sebacic acid, 0.5-0.6 part of ammonium dodecanedioate, 0.1-0.13 part of p-nitrobenzoic acid, 0.15-0.17 part of hypophosphorous acid, 1-1.2 parts of trinitrophenol, 1-1.5 parts of polyethylene glycol and 2-2.4 parts of boric acid. According to the electrolyte solution for the electrolytic condenser, the sparking voltage is 420-440V, the conductivity at 40 DEG C is (2.4-2.7)*10-3S / cm, high temperature resistance and long service life can be achieved, more than 2500 hours can last in a 125 DEG C life test, the capacitance change rate is smaller than 0.3%, and the leakage current is 5-6 muA.

Description

technical field [0001] The invention relates to the technical field of capacitors, in particular to an electrolytic solution for electrolytic capacitors. Background technique [0002] Capacitors are one of the electronic components widely used in electronic equipment, and are widely used in DC blocking, coupling, bypass, filtering, tuning loops, energy conversion, control circuits, etc. [0003] Electrolytic capacitor is a kind of capacitor. The metal foil is the positive electrode. The oxide film close to the metal is the dielectric. The cathode is composed of conductive materials, electrolytes and other materials. Because the electrolyte is the main part of the cathode, the electrolytic capacitor gets its name. . At the same time, the positive and negative of the electrolytic capacitor cannot be connected incorrectly. [0004] Electrolytic capacitor feature 1: The capacitance per unit volume is very large, dozens to hundreds of times larger than other types of capacitors...

AI Technical Summary

Problems solved by technology

The flashover voltage of this technical solution is not high enough and needs to be improved