Electricity: electrical systems and devices – Electrolytic systems or devices – Double layer electrolytic capacitor
Patent
1999-01-21
2000-10-24
Reichard, Dean A.
Electricity: electrical systems and devices
Electrolytic systems or devices
Double layer electrolytic capacitor
361515, 361520, H01G 900, H01G 4228
Patent
active
061376736
ABSTRACT:
An electric double-layer capacitor includes a plurality of electrode elements each having a current collector, a polarized electrode disposed on a surface thereof, and a strip-like current collecting lead extending from an end of the current collector. The electrode elements are stacked as alternately belonging to respective polarities, and the current collecting leads of the electrode elements are stacked into lead assemblies of the respective polarities. A separator is interposed between the stacked electrode elements, and the lead assemblies are connected respectively to electrode terminals. The lead assemblies of respective polarities serve as respective connectors connected to the electrode terminals. Each of the connectors has a flat joint region as at least a portion thereof. The current collecting leads of each of the lead assemblies are integrally joined to each other by the flat joint region by ultrasonic welding before the connector is connected to the electrode terminal. The connectors are joined to the electrode terminals, respectively, through the respective joint region by electron beam welding or laser beam welding.
REFERENCES:
patent: 3398332 (1968-08-01), Logan
patent: 3439232 (1969-04-01), Buskirk et al.
patent: 5381301 (1995-01-01), Hudis et al.
Andou Kazuo
Ikeo Mitsuru
Kotani Koji
Matsuoka Toshiyuki
Ohta Tohru
Dinkins Anthony
Honda Giken Kogyo Kabushiki Kaisha
Reichard Dean A.
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