Surface processing solution for manufacturing solid electrolytic capacitor
A solid electrolysis and surface treatment technology, which is applied in the direction of solid electrolytic capacitors, etc., can solve the problems that the coupling agent is limited to silane coupling agent, the lead-out rate of capacitor capacity is small, and cannot meet the requirements of high performance, so as to achieve wide application range and reduce Effects of Equivalent Series Resistance, Significant Economic and Social Benefits
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[0012] Example 1
[0013] Taking a solid aluminum electrolytic capacitor as an example, an oxide film dielectric aluminum oxide is formed on the surface of the aluminum core of the anode body, and a surface treatment solution is impregnated on the surface of the aluminum oxide to form a treatment layer. After that, a solid electrolyte layer of polypyrrole is formed on the surface of the treatment layer, and a first cathode layer is formed on the outer surface of the solid electrolyte layer; a second cathode layer is formed on the outer surface of the first cathode layer to make a monolithic capacitor element, and then the capacitor element is assembled and combined Encapsulate to obtain a solid aluminum electrolytic capacitor, the same below.
[0014] The surface treatment solution consists of ethyl titanate coupling agent, methanol organic solvent, and deionized water. The mass concentration of ethyl titanate coupling agent is 0.001%, the mass concentration of deionized water is ...
Example Embodiment
[0016] Example 2
[0017] The difference between Example 2 and Example 1 is only the composition of the surface treatment solution. The composition of the surface treatment solution of Example 2 is aluminate coupling agent, acetone organic solvent, and deionized water. The mass concentration of the aluminate coupling agent is 50%, the mass concentration of deionized water is 10.0%, and the rest is acetone.
Example Embodiment
[0018] Example 3
[0019] The difference between Example 3 and Example 1 is only the composition of the surface treatment solution. The composition of the surface treatment solution of Example 3 is a bimetallic coupling agent coupling agent, ether organic solvent, and deionized water. Among them, the mass concentration of bimetallic coupling agent is 20%, the mass concentration of deionized water is 20.0%, and the rest is ether.
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