Galvanic element, particularly a metal-air cell

US4507367A · kind A · utility

Assignee

• Accumulatorenwerke Hoppecke Carl Zoellner & Sohn GmbH & Co. KG · DE

Inventors

• Jean Ruch · Brilon, DE
• Detlef Katryniok · Brilon, DE
• Hugo Pack · Brilon, DE

Key dates

• Filing date: Jul 16, 1982
• Grant date: Mar 26, 1985
• Expiry date: Jul 16, 2002

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/10
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A galvanic element, particularly a metal-air cell, comprising a consumable etal electrode of flat shape which extends into a container containing the electrolyte, a gas-diffusion electrode which can be freely flushed by gas and particularly air from the outside, being arranged at a distance from the working surface of said electrode. In order to improve the electrolyte circulation in such a system and thus promote the electrochemical conversion, the hydrogen produced upon the electrochemical conversion is collected within the container which contains the electrolyte and the pressure which builds up is utilized for the transport of the electrolyte. For this purpose, a gas-collection space is provided in the electrolyte container so that the gas pressure can act on the electrolyte and a pipe system is present through which the electrolyte which has been displaced is conducted out of the upper region of the container into the lower region of the container.