Back to results
US 2025/0019842 A1Published application
Structural design of an electrochemical cell
AssigneeEvonik Operations GmbH
InventorArtjom Maljusch
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeEvonik Operations GmbH
InventorArtjom Maljusch
Estimating the term…
The present invention relates to an electrochemical cell (0) comprising an anode (1), a cathode (2) and an anion-conducting membrane (3) located between the anode (1) and the cathode (2). The invention also relates to the use of the cell (0) in a method for preparing hydrogen (H2) and oxygen (O2) by electrochemically splitting water (H2O). Moreover, the invention relates to an electrolyser (6, 8) comprising a multiplicity of the cells (0), and to a method for producing the electrolyser (6, 8). The aim of the invention is to provide an electrochemical cell (0) by means of which anion-exchange-membrane-based water splitting can be carried out on an industrial scale. The aim is also for the cell to be inexpensive in terms of production and to allow for the energy-efficient preparation of hydrogen and oxygen. The aim is achieved in that at least part of the anode is in the form of a first textile fabric comprising catalytically active textile line structures, and in that the first textile fabric directly contacts the membrane.
An electrochemical cell comprising an anode, a cathode and an anion-conducting membrane disposed between anode and cathode, where the anode is at least partly executed as a first textile fabric comprising catalytically active linear textile structures, and in that the first textile fabric is in direct contact with the membrane, where the first textile fabric and is a felt or nonwoven, characterized in that the felt or nonwoven comprises at least two types of catalytically active linear textile structure, where one type has a higher catalytic activity than the other type, and in that the type of catalytically active linear textile structure having higher catalytic activity is concentrated in a region of the textile fabric more closely adjoining the membrane than a region of the textile fabric in which the type of catalytically active linear textile structure having lower catalytic activity is concentrated.
Dependencies are inferred from the claim text.