Accumulatorenwerke Hoppecke Carl Zoellner & Sohn Gmbh & Co. Kg

Hoppecke Technologies Gmbh & Co. Kg

Hugo Pack

Jean P Ruch

Detlef Katryniok

Heinz-Gunter Tillmann

Jean Ruch

Julia Schmidt

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.

Galvanic element, particularly a metal-air cell

A galvanic element in the form of a flat, high power cell, especially a ml-air-cell, which is cooled with cooling water, and can be assembled to a battery which comprises a plurality of cells. The flat cell comprises bipolar electrodes which have a consumable metal electrode in flat form as an anode, a cathode (oxygen electrode), and a liquid electrolyte. It is an object of the present invention to be able to control the temperature, especially for cooling, of each individual electrode directly by means of a medium which is independent of the liquid electrolyte. For this purpose, the bipolar electrodes are electrically interconnected, and between them is arranged a gasket which forms a cooling chamber. As a result, the heat balance and temperature of not only the anode but also of the cathode can be controlled directly.

Galvanic element, especially metal-air-cell

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Brilon-Bontkirchen, Germany

Hugo Pack