Electrolysis unit and electrolyser

US11584998B2 · kind B2 · utility

Assignee

• Siemens Energy Global GmbH & Co. KG · DE

Inventors

• Alexander Hahn · Roetgen, DE
• Hagen Hertsch · Erlangen, DE
• Stephan Rückert · Erlangen, DE
• Thomas Purucker · Hersdorf, DE
• Alexander Spies · Erlangen, DE
• Jochen Straub · Erlangen, DE
• Richard Wagner · San Diego, US

Key dates

• Filing date: Sep 21, 2018
• Grant date: Feb 21, 2023
• Expiry date: Nov 30, 2038

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/133
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

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.