Siemens Energy Global Gmbh & Co. Kg

Siemens Aktiengesellschaft

Jochen Straub

Thomas Hammer

Norbert Huber

Alexander Spies

Alexander Hahn

Armin Datz

Stephan Rückert

Peter Utz

Klaus Dennerlein

Andreas Reiner

Thomas Purucker

Hagen Hertsch

Roland Plobner

Dieter Most

Werner Straub

Richard Wagner

Roland Käppner

Stephan Ruckert

Jochen SCHÄFER

Martin Tackenberg

An electrolysis cell with a cell frame and to a method for producing an electrolysis cell, wherein the cell frame has a stepped inner profile. The inner profile has at least one support surface for receiving a planar component in the cell frame, and the support surface has a recess for a seal. A seal is first placed in the recess, and a membrane-electrode unit, a first gas diffusion layer, and an electrically conductive top layer are then introduced into the cell frame. The cell frame is then rotated, and a second gas diffusion layer is applied. The electrolysis cell produced in this manner includes the cell frame with the seal and the different layers.

Electrolysis cell and method for producing the electrolysis cell

An electrolytic device and to a method for operating an electrolysis of water with at least one electrolysis cell, the electrolysis cell having an anode compartment having an anode and a cathode compartment having a cathode. The anode compartment is separated from the cathode compartment by a proton exchange membrane. The anode compartment is suitable for holding water and oxidising the water on the anode to form a first product including oxygen and the cathode compartment is suitable for holding water and reducing the water on the cathode to a second product including hydrogen. Furthermore, the electrolysis device includes a first gas precipitation device for precipitation of oxygen, the first gas precipitation device for carrying out a natural water circulation being arranged above the electrolysis cell.

Electrolysis unit and electrolyser

An electrolysis unit and to a method for electrochemically decomposing water into hydrogen and oxygen. The electrolysis unit has at least two electrolysis modules. The electrolysis unit also has exactly one first gas separation device for a first product gas including oxygen and exactly one second gas separation device for a second product gas including hydrogen. The first gas separation device is connected to the at least two electrolysis modules by respective first lines. The second gas separation device is connected to the at least two electrolysis modules by respective second lines. The at least two first lines have the same first length. The at least two second lines likewise have the same second length.

Electrolysis unit and method for operating the electrolysis unit

A gas diffusion layer is arranged between a bipolar plate and an electrode of an electrochemical cell and includes at least two layers which are layered one on top of the other layer. At least one of the two layers is designed as a spring component having a progressive spring characteristic curve.

Gas diffusion layer, electrochemical cell having such a gas diffusion layer, and electrolyzer

A bipolar plate for an electrolyzer, particularly a PEM electrolyzer, is formed with a central region and a peripheral region surrounding the central region. With a view to cost-effective production of the bipolar plate, the central region is made of metal sheet and the peripheral region is formed from a plastic frame. The plastic frame is made of at least one thermoplastic, particularly at least one high-temperature thermoplastic, and is injection-molded around the sheet metal.

Bipolar plate for an electrolyzer, electrolyzer and method for producing a bipolar plate

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Erlangen, Germany

Jochen Straub