ELECTROLYTIC CAPACITOR

• Main Authors: TSUBAKI YUICHIRO, AOYAMA TATSUJI
• Format: Patent
• Language: English; Japanese
• Published: 09.05.2019
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; ELECTRICITY

To provide a high-reliable electrolytic capacitor.SOLUTION: An electrolytic capacitor comprises: a capacitor element having an anode body formed with a dielectric layer; an electroconductive polymer covering at least a part of a surface of the dielectric layer; and an electrolytic solution that contains a non-aqueous solvent, a glycerin compound, and an ionic solute. A mass of the glycerin compound contained in the electrolytic solution may be within a range of 2-100 times with respect to a mass of the electroconductive polymer adhered to the capacitor element. The content of the glycerin compound in the electrolytic solution may exceed 10 mass %.SELECTED DRAWING: Figure 1 【課題】高信頼性を有する電解コンデンサを提供する。【解決手段】電解コンデンサは、誘電体層が形成された陽極体を備えたコンデンサ素子と、前記誘電体層の少なくとも一部の表面を覆う導電性高分子と、非水溶媒、グリセリン化合物およびイオン性溶質を含む電解液と、を備える。前記電解液中に含まれるグリセリン化合物の質量は、前記コンデンサ素子に付着した導電性高分子の質量に対して２〜１００倍の範囲であってもよい。前記電解液中の前記グリセリン化合物の含有量は、１０質量％より大きくてもよい。【選択図】図１