Charging-discharging module based on giant permittivity ceramic capacitor and preparation method of charging-discharging module

Abstract

The invention relates to a charging-discharging module based on a giant permittivity ceramic capacitor and a preparation method of the charging-discharging module. The module is provided with at least two giant permittivity ceramic capacitor bodies, wherein the two giant permittivity ceramic capacitor bodies are connected in serial or / and in parallel, and each giant permittivity ceramic capacitor body is sequentially provided with a lower silver electrode layer, a lower electric-breakdown-resistant layer, an intermediate dielectric layer, an upper electric-breakdown-resistant layer and an upper silver electrode layer. The preparation method comprises the following steps of preparing the intermediate dielectric layer of the giant permittivity ceramic capacitor body; covering the lower electric-breakdown-resistant layer on the lower surface of the intermediate dielectric layer; covering the upper electric-breakdown-resistant layer on the upper surface of the intermediate dielectric layer; coating conductive silver paste on the lower surface of the lower electric-breakdown-resistant, and thermally treating the silver paste to obtain the lower silver electrode layer; coating conductive silver paste on the upper surface of the upper electric-breakdown-resistant layer, thermally treating the silver paste to obtain the upper silver electrode layer, and obtaining the giant permittivity ceramic capacitor body; and assembling the produced giant permittivity ceramic capacitor bodies in serial or / and in parallel to obtain the charging-discharging module based on the giant permittivity ceramic capacitor.

Description

technical field [0001] The invention relates to capacitors, in particular to a charging and discharging module based on a giant permittivity ceramic capacitor and a preparation method thereof. Background technique [0002] Mobile electrical equipment such as mobile phones and laptops have become indispensable tools in modern daily work and life, with more and more functions and more and more power requirements. Most of these mobile electrical devices use lithium-ion chemical batteries as energy storage components. The chemical batteries themselves have disadvantages such as slow charging and discharging, small energy storage, limited cycle life, and potential safety hazards, which affect the long-term normal use of mobile electrical devices. [0003] As the world's energy crisis is becoming more and more serious, the wide application of new energy sources such as solar energy and wind energy has become an effective way to solve the energy shortage in the world, and thus wind...

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Problems solved by technology

[0006] The purpose of the present invention is to address the above-mentioned shortcomings of existing supercapacitors, and provide features such as fast charge and discharge rate, large capacitance, small volume, high temperature stability, no pollution, long life, miniaturization and easy portability, etc., which can be used in A charge-discharge module based on a large permittivity ceramic capacitor and its preparation method that quickly supplies power to mobile devices such as mobile phones and notebook computers when the power is insufficient, and effectively prolongs the working time of electrical equipment (including mobile phones, notebook computers, etc.)

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