Double-layer capacitor composed of a plurality of individual double-layer capacitor cells

US5930108A · kind A · utility

Assignee

• Dornier GmbH · DE

Inventors

• Peter Kurzweil · Markdorf, DE
• Ottmar Schmid · Markdorf, DE
• Hans-Jorg Heidrich · Ulm, DE

Key dates

• Filing date: Jul 21, 1997
• Grant date: Jul 27, 1999
• Expiry date: Jul 21, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/13
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A double-layer capacitor is composed of at least two individual double-layer capacitor cells connected in series, with bipolar electrodes and electrolyte layers being provided alternately. Each a bipolar electrode includes an electrically conducting carrier with an active layer applied on both sides, the active layer having a low resistance and large active surface. The carrier provides an electrically conducting barrier between the adjoining ion-conducting electrolyte layers, and the electrodes and electrolyte layers are permanently connected. An electrically conducting binder is integrated into the active layer, or a separate connecting layer is provided to promote adhesion between the active and electrolyte layers.