Solid electrolytic capacitor and method for manufacturing the same

A technology of solid electrolysis and manufacturing methods, which is applied in the direction of solid electrolytic capacitors, electrolytic capacitors, capacitor manufacturing, etc., can solve the problems of capacitor capacitance reduction, TCNQ compound salt electrolyte impregnation efficiency, etc., to achieve good impedance characteristics and reduce the possibility of deterioration , the effect of prolonging the service life

Inactive Publication Date: 2005-11-30
SAMXON ELECTRONICS DONG GUAN
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

In addition, the impregnation efficiency of the TCNQ composite salt electrolyte is low, resulting in a decrease in the capacitance of the capacitor

Method used

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  • Solid electrolytic capacitor and method for manufacturing the same
  • Solid electrolytic capacitor and method for manufacturing the same
  • Solid electrolytic capacitor and method for manufacturing the same

Examples

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Embodiment

[0047] Insert electrolytic paper containing Manila hemp fiber (density 0.2-0.6g / cm2) between the anode foil and the cathode foil 3 , with a thickness of 30-60 μm), and roll them up to form wound capacitor cores, impregnate them with liquid electrolyte, age the cores at room temperature for 3 hours, and then place them at 240°C for 120 minutes to completely carbonize the electrolytic paper. Then, immerse the preheated capacitor core in the double salt of TCNQ n-butylisoquinoline in the molten state, after 30 seconds of immersion time, quickly cool down, and directly form a TCNQ double salt layer between the electrodes, and its rated voltage is 4V, The capacitance is 560μF. The capacitor element is put into an aluminum metal shell, and then the opening is sealed with epoxy resin or butyl rubber, and finally aged and sorted, so that an aluminum electrolytic capacitor with a size of D8mm×L10.5mm can be produced.

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Abstract

This invention relates to solid electrolysis capacitor, which comprises aluminum shell, aluminum peduncle, and lead wire, wherein, the said peduncle is located above negative electrode foil rolled into the aluminum shell and is characterized by the following: the positive electrode is composed of valve metal with medium oxidation film on its surface; the aluminum shell is filled with TCNQ compound salt. The process method comprises the following steps: first processing positive and negative electrodes foil; clamping the isolation film on the medium oxidation film positive and negative foils and together with them to be rolled into one capacitor core; then dipping it into electrolysis liquid and processing the core for aging and carbonizing process; mixing the TCNQ compound salt with the above proportion in melting status; then dipping the capacitor core in the melting liquid; taking out cooling sealing.

Description

Technical field: [0001] The invention relates to a solid electrolytic capacitor, in particular to a winding structure solid electrolytic capacitor using a solid organic semiconductor material as electrolyte and a preparation method thereof. Background technique: [0002] Capacitors are a class of basic electronic components that are widely used in various electronic products. Aluminum solid electrolytic capacitors are a new type of electrolytic capacitors developed with the continuous improvement of high-frequency characteristics of electronic products in recent decades. It is widely used in modern communications, computers, high-performance civil and military electronic products. According to relevant statistics, the output value of aluminum solid electrolytic capacitors in 2001 reached 500 million US dollars. At present, the development of aluminum solid electrolytic capacitors is mainly reflected in the evolution of the electrolyte used in them. The traditional aluminum...

Claims

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Application Information

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IPC IPC(8): H01G9/15
Inventor 纪力荣
Owner SAMXON ELECTRONICS DONG GUAN
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