Solid aluminum electrolytic capacitor with self-repair function and preparation method of solid aluminum electrolytic capacitor

Abstract

The invention discloses a solid aluminum electrolytic capacitor with a self-repair function. The solid aluminum electrolytic capacitor comprises a housing and a core package, wherein the core packageis hermetically arranged in the housing and comprises an anode foil, a cathode foil and electrolytic paper; the anode foil, the electrolytic paper and the cathode foil are sequentially laminated and wound into the core package; the electrolytic paper is carbonized and then forms a solid conductive polymer layer between the anode foil and the cathode foil; a gelatinous prosthesis is formed on the solid conductive polymer layer; and the prosthesis comprises a gel rack and a repair electrolyte solution; and the repair electrolyte solution is attached to the gel rack. According to the solid aluminum electrolytic capacitor, the capacitor can be provided with high conductivity by a solid electrolyte; the solid electrolyte is in a relatively ''loose'' state between the anode foil and the cathodefoil, the prosthesis in a gel state is formed in the loose state, and the prosthesis contains a little of repair electrolyte solution of an oxide film on the surface of the anode foil, so that the solid aluminum electrolytic capacitor also has certain self-repair capacity, thereby improving the performance of a product.

Description

technical field [0001] The invention relates to a solid aluminum electrolytic capacitor, in particular to a solid aluminum electrolytic capacitor with self-repair function and a preparation method thereof. Background technique [0002] The existing solid aluminum electrolytic capacitors have excellent properties such as high conductivity and low ESR, but at the same time, the solid capacitor itself has limited voltage resistance, basically has no self-repair ability, and the internal structure is extremely easy to be damaged by mechanical movement, drop, collision, etc., thus Affect the electrical performance of the product. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide a solid aluminum electrolytic capacitor with self-repair function and its preparation method. This capacitor forms a gel-state prosthesis on the solid electrolyte. The body is attached with the re...

AI Technical Summary

Problems solved by technology

[0002] The existing solid aluminum electrolytic capacitors have excellent properties such as high conductivity and low ESR, but at the same time, the solid capacitor itself has limited voltage resistance, basically has no self-repair ability, and the internal structure is extremely easy to be damaged by mechanical movement, drop, collision, etc., thus Affect the electrical performance of the product