Solid electrolyte aluminum electrolytic capacitor and manufacturing method thereof

• Main Authors: MA YANBIN, WU WEIQIAO, YUAN YONG, LIU YONGPENG, LIAO QIONG, LUO WEI, ZHENG PING, LI HUIFENG, WU DIRONG
• Format: Patent
• Language: English
• Published: 20.05.2015
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; ELECTRICITY

The invention discloses a solid electrolyte aluminum electrolytic capacitor which comprises an aluminum casing and a core cladding arranged in the aluminum casing, wherein the core cladding comprises an anode formed aluminum foil, a cathode foil, electrolytic paper between the anode formed aluminum foil and the cathode foil as well as solid electrolyte, wherein the solid electrolyte comprises a conducting polymer and a conducting carbon material; the solid electrolyte aluminum electrolytic capacitor has excellent ESR (Equivalent Series Resistance) performance; the solid electrolyte of the solid electrolyte aluminum electrolytic capacitor comprises the conducting polymer and the conducting carbon material, so the problems that the resistance of the conducting polymer at high temperature is remarkably increased, the performance of the conducting polymer is low and the like can be solved. The invention also discloses a manufacturing method for the solid electrolyte aluminum electrolytic capacitor. According to the manufacturing method, a solid capacitor with lower ESR value and a high voltage resisting value can be obtained; meanwhile, lower leakage current can be obtained, and better batch consistency is also obtained.