Aluminum electrolytic capacitor electrolyte doped with glycerol polyester borate and a preparation method thereof

Abstract

The invention discloses an aluminum electrolytic capacitor electrolyte doped with glycerol polyester borate and a preparation method thereof. The aluminum electrolytic capacitor electrolyte doped withglycerol borate polyester comprises the following components in parts by weight: glycerol borate polyester 25-46 part, diethylene glycol 30-45 part of vinyl sulfite, 15-22 part, sodium lignosulfonate6-12 part, chitin 5-10 part, polyacrylamide 5-15 part, ammonium isosemicarbazate 6-15 part, vinyl fluorocarbonate 10-15 part of hexamethylene tetramine 6-13, 5-Chlorine-2-Methyl-4-Isothiazoline-3-Ketone 5-15 copy. The electrolyte of the aluminum electrolytic capacitor doped with glycerol polyester borate has high conductivity and high spark voltage, the spark voltage of the electrolyte reaches 505V, and the conductivity reaches 2.9 * 10- 3S / cm, which can effectively solve the problem that the conductivity of the electrolyte of the existing aluminum electrolytic capacitor is too low to cause the ESR value, and can meet the needs of the existing capacitor products; The preparation method is simple and beneficial to realize industrial production.

Description

technical field [0001] The invention relates to a capacitor electrolyte, in particular to an aluminum electrolytic capacitor electrolyte doped with boric acid glycerol polyester and a preparation method thereof. Background technique [0002] An aluminum electrolytic capacitor is a capacitor made of an aluminum cylinder as the negative electrode, which is filled with a liquid electrolyte, and a bent aluminum strip is inserted as the positive electrode. While aluminum electrolytic capacitors are growing steadily in the traditional consumer electronics field, their application fields have been expanded in many emerging fields such as energy-saving lamps, frequency converters, and new energy along with structural transformation and technological progress. [0003] The electrolyte of aluminum electrolytic capacitors is the actual cathode of aluminum electrolytic capacitors, which plays an important role in providing oxygen ions and repairing the anodic oxide film. However, the c...

AI Technical Summary

Problems solved by technology

However, the conductivity of the electrolyte of the existing aluminum electrolytic capacitors is too low, which easily causes the ESR value, that is, the impedance is particularly high, which cannot meet the needs of the existing capacitor products.