Solid electrolytic capacitors

• Main Authors: Kamigawa, Hidenori, Morita, Kouichi, Ibuta, Hitoshi, Koyama, Hiroyuki
• Format: Patent
• Language: English; French; German
• Published: 28.06.2017
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION

The invention provides a solid electrolytic capacitor which comprises a capacitor element 15 including an anode body 1 having an anode leading member 16, and a dielectric coating layer 2, a solid electrolyte layer 3 and a cathode leading layer 4 which are formed successively over a surface of the anode body 1. The anode leading member 16 has an anode terminal member 61 connected thereto, the cathode leading layer 4 has a cathode terminal member 62 connected thereto, and the capacitor element 15 is covered with a packaging resin portion 5. The cathode terminal member 62 is connected to the cathode leading layer 4 with current control means 20 provided therebetween. The current control means 20 comprises a current control layer 21 reversibly increasable in electrical resistance with overcurrent or excessive heat, and a pair of electrode members 22a,22b each in the form of a plate or foil and having the current control layer 21 sandwiched therebetween. The electrode members 22a,22b are joined to the cathode leading layer 4 and the cathode terminal member 62, respectively.