High-capacity low-voltage chip-type laminated aluminum capacitor and preparation method thereof

Abstract

The invention discloses a high-capacity low-voltage chip-type laminated aluminum capacitor and a preparation method thereof, and belongs to the technical field of capacitors, the high-capacity low-voltage chip-type laminated aluminum capacitor comprises a shell, a plurality of cathode waterproof shells are arranged in the shell, silver-containing cathode layers are arranged on the inner sides of the cathode waterproof shells, carbon-containing cathode layers are arranged on the inner sides of the silver-containing cathode layers, and the carbon-containing cathode layers are arranged on the inner sides of the carbon-containing cathode layers. An electrolyte layer is arranged on the inner side of the carbon-containing cathode layer, an aluminum foil body is arranged on the inner side of the electrolyte layer, a positive electrode gasket is fixedly installed in the shell and makes contact with the aluminum foil body, a positive electrode leading-out terminal is arranged on the surface of the positive electrode gasket, one end of the positive electrode leading-out terminal makes contact with the positive electrode gasket, and the other end of the positive electrode leading-out terminal makes contact with the aluminum foil body. And the other end of the positive electrode leading-out terminal extends to the outer side of the positive electrode leading-out terminal, and a negative electrode leading-out terminal is arranged in the shell. On the basis of realizing large capacitance of the capacitor, the capacitor can bear high temperature, and the liquid leakage probability is reduced.

Description

technical field [0001] The invention relates to the technical field of capacitors, and more particularly, to a large-capacity low-voltage chip-type laminated aluminum capacitor and a preparation method thereof. Background technique [0002] Capacitors are an important part of electronic components. In recent years, with the rapid development of science and technology, electronic products are rapidly evolving towards thin, light and small, and surface mounting. For capacitors, ultra-low equivalent series resistance, high frequency characteristics , high temperature reliability, etc. are its important development directions. Chip polymer laminated aluminum capacitors are an important research and development direction in the international and domestic capacitor industry in recent years. Compared with traditional liquid aluminum electrolytic capacitors, this product is a polar, chip capacitor. [0003] The existing liquid aluminum electrolytic capacitor is relatively simple to...

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Problems solved by technology

[0003] The existing liquid aluminum electrolytic capacitors are relatively simple to manufacture, and the matching of equipment and materials is easy. Therefore, the unit price of this product is relatively low

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