Preparation method of novel gel electrolyte and aluminum electrolytic capacitor

Abstract

The invention discloses a preparation method of a novel gel electrolyte and an aluminum electrolytic capacitor. The preparation method of the novel gel electrolyte comprises the following steps of: taking an acrylamide derivative as a monomer, and introducing acrylic acid as a cross-linking agent; S2, impregnating a conventional liquid electrolyte, injecting the gel electrolyte obtained in the step S1, and performing packaging to obtain an electrolyte mixture; S3, heating or illuminating the electrolyte mixture obtained in the step S2 to obtain a gelatinized electrolyte. The gelatinized electrolyte obtained by the manufacturing method disclosed by the invention can reduce the fluidity of the electrolyte, so that the electrolyte can be in a semi-solidified state in the core package after the core package is soaked in the electrolyte, free liquid electrolyte does not exist, the situation of liquid leakage does not occur, and the safety of the capacitor in use is ensured; and moreover, the capacity of the capacitor cannot be reduced by adopting the gelled electrolyte on the premise of improving the voltage endurance capability of the capacitor.

Description

Technical field [0001] The invention relates to the technical field of capacitors, in particular to a manufacturing method of a novel gel electrolyte and an aluminum electrolytic capacitor. Background technique [0002] Traditional aluminum electrolytic capacitors are made of four layers of overlapping windings of anode aluminum foil, electrolytic paper, cathode aluminum foil, and electrolytic paper to form a core. After the core is impregnated with electrolyte, it is prepared after assembly, casing, aging and testing steps. . [0003] After the existing core is impregnated with electrolyte, the existing conventional electrolyte is composed of solute, solvent and additives, and the fluidity of these conventional electrolytes is relatively strong. The electrolyte still has a certain degree of fluidity, which may cause leakage and damage to other components or even burning. Based on this, the present invention designs a new type of gel electrolyte manufacturing method and aluminum ...

AI Technical Summary

Problems solved by technology

[0003] After the existing core is impregnated with electrolyte, because the existing conventional electrolyte is composed of solute, solvent and additives, and these conventional electrolytes have strong fluidity, after the core is impregnated, the inside of the core The electrolyte still has a certain degree of fluidity, so there may be problems of leakage, damage to other components or even burning

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