Low-tightness non-carbonization solid electrolytic capacitor paper and preparation method thereof

Abstract

The invention belongs to the field of electrolytic capacitor paper, and particularly relates to low-tightness non-carbonization solid electrolytic capacitor paper and a preparation method thereof. Theelectrolytic capacitor paper comprises the following raw materials by dry mass: 10-80% of jute pulp and 20-90% of chemical fiber, the pulping degree of the jute pulp is 10-30 degrees SR, the wet weight of the jute pulp is 10-40g, the length of the chemical fiber is 1.5-15 mm, and the fineness of the chemical fiber is 0.1-3 dtex. The low-tightness non-carbonization solid electrolytic capacitor paper provided by the invention has good adsorbability to conductive polymer monomers, and can reduce side reactions during polymerization of the conductive polymer monomers, and the low-tightness non-carbonization solid electrolytic capacitor paper has low tightness, so that the monomers can be uniformly distributed in the paper. Therefore, the capacitor paper does not need to be subjected to carbonization treatment in the production process of capacitors.

Description

technical field [0001] The invention belongs to the field of electrolytic capacitor paper, and in particular relates to a low-density carbonization-free solid electrolytic capacitor paper and a preparation method thereof. Background technique [0002] The electrolyte in a solid electrolytic capacitor is a solid conductive polymer material. The structure of a solid electrolytic capacitor includes an anode, a cathode, electrolytic paper, and a solid conductive polymer material. Electrolytic capacitor paper is one of the indispensable raw materials for the preparation of electrolytic capacitors. In capacitors, it is mainly used to absorb conductive polymer monomers and oxidants to form polymers. short circuit. [0003] The traditional electrolytic capacitor paper is all cellulose material, which has a weak adsorption capacity for monomers. At the same time, cellulose contains a large number of hydroxyl groups, which will cause side reactions during the polymerization of conduc...

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Problems solved by technology

Under this process, the entire capacitor needs to be heated to a higher temperature, the production process is complicated, and the high-temperature carbonization process will cause damage to the structure of the cathode and anode foils, resulting in unstable product performance and easy leakage current exceeding the standard; in addition, due to heating The high temperature consumes a lot of energy, which increases the production cost of the enterprise to a certain extent.

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