Stacked capacitor

Abstract

The invention discloses a stacked capacitor comprising a plurality of laminated single cells, a positive electrode lead-out terminal and a negative electrode lead-out terminal, wherein the positive electrode lead-out terminal and the negative electrode lead-out terminal are electrically connected to the single cells. Each single cell includes a positive electrode terminal, a negative electrode terminal, and a shielding rubber line positioned between the positive terminal and the negative terminal; the negative electrode terminals of all the single cells are connected together and connected tothe negative electrode lead-out terminal; the positive electrode terminals of all the single cells are connected together and connected to the positive electrode lead-out terminal; the negative electrode terminal of each single cell comprises a dielectric film, a solid electrolyte layer, a carbon paste layer and a silver paste layer that are orderly wrapped on a surface of a positive electrode foil; outer surfaces of the plurality of single cells are sealed and packaged with insulating resin layers, and the stacked capacitor further includes an anti-sulfuration protection framework which is arranged close to the negative electrode lead-out terminal and used for preventing sulfur and sulfide from contacting with the silver paste layer. The stacked capacitor provided in the present inventionis good in anti-sulfuration effect and high in reliability.

Description

technical field [0001] The invention relates to the field of capacitance production, in particular to laminated capacitors. Background technique [0002] The laminated solid aluminum electrolytic capacitor is a new type of chip electronic component product that uses a conductive polymer material with high conductivity as a solid electrolyte. It has many advantages such as smaller size, better performance, wide temperature range, long life, high reliability and high environmental protection. It is suitable for the development trend of miniaturization, high frequency, high speed, high reliability and high environmental protection of electronic products and SMT (Surface Mount Technology, Surface Mount Technology) requirements. [0003] Such as Figure 1 to Figure 4 As shown, the existing laminated solid capacitor uses a sheet-shaped monomer 10 as a basic unit, and the monomer is divided into a positive terminal 1, a negative terminal 3, and a shielding glue line 2 between the ...

AI Technical Summary

Problems solved by technology

[0006] The multilayer capacitor proposed by the present invention aims to solve the technical problem that the silver material on the surface layer of the monomer is easily vulcanized due to the gap between the negative lead-out terminal and the packaging resin of the existing multilayer solid capacitor during reflow soldering or wave soldering

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