Hermetically sealed wet electrolytic capacitor, implantable device, implantable cardioverter defibrillator, and method of manufacturing a capacitor

• Main Authors: FAIRFIELD, EDWARD, EVANS, JOHN, SEGEL, VICKI, STATKOV, ILIA, BREITHAUPT, STEPHEN, VAISMAN, PAVEL, EIDELMAN, ALEX, ESHEL, HILA, LASTELLA, SARAH
• Format: Patent
• Language: Chinese; English
• Published: 01.07.2016
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; ELECTRICITY

Methods of manufacturing a hermetically sealed wet electrolytic capacitor and a hermetically sealed wet electrolytic capacitor are described. A method of manufacturing a wet electrolytic capacitor includes forming a cathode of the capacitor by forming a case comprising a metal substrate, the metal substrate having an alloyed surface, depositing a smooth film comprising palladium and copper as a tacking layer on the alloyed surface of the metal substrate, and depositing a rough, high surface area layer on the tacking layer to achieve a high capacitance cathode. A first terminal is electrically connected to the cathode. An anode is formed. A second terminal is electrically connected to the anode. An electrolytic solution is disposed within the case, and the case is hermetically sealed.