EP 4370728 A1 20240522 - ELECTROLYSIS CELL FOR POLYMER ELECTROLYTE MEMBRANE ELECTROLYSIS AND COATING
Title (en)
ELECTROLYSIS CELL FOR POLYMER ELECTROLYTE MEMBRANE ELECTROLYSIS AND COATING
Title (de)
ELEKTROLYSEZELLE ZUR POLYMERELEKTROLYTMEMBRAN-ELEKTROLYSE UND BESCHICHTUNG
Title (fr)
CELLULE D'ÉLECTROLYSE POUR ÉLECTROLYSE À MEMBRANE ÉLECTROLYTIQUE POLYMÈRE ET REVÊTEMENT
Publication
Application
Priority
- EP 21192595 A 20210823
- EP 2022065575 W 20220608
Abstract (en)
[origin: WO2023025426A1] The invention relates to an electrolysis cell (1) for polymer electrolyte membrane electrolysis with a cathodic half-cell (5) and an anodic half-cell (7). The cathodic half-cell (5) and the anodic half-cell (7) are separated from one another by means of a polymer electrolyte membrane (4). At least one of the half-cells (7, 8) has a channel structure (13a, 13b) which is formed by a gas diffusion layer (11a, 11b) and by a bipolar plate (21a, 21b). The bipolar plate (21a, 21b) has a main body (23) made of a metal base material (25, 27), to which a coating (29) made of a coating material (31) is applied. The coating material (31) is present in a homogeneous mixed phase comprising titanium niobium (TiNb), titanium niobium nitride and also iridium and/or iridium carbide (IrC), in particular in a homogeneous single layer which is formed on the metal main body (23). A coating (29) to be applied as a protective layer to a metal component of an electrolysis cell (1) is also described. This coating comprises the constituents titanium niobium (TiNb) and titanium niobium nitride (TiNbN) and also admixtures of iridium carbide (IrC) and/or (Ir).
IPC 8 full level
C25B 1/04 (2021.01); C25B 9/60 (2021.01); C25B 9/75 (2021.01); C25B 9/77 (2021.01); C25B 11/032 (2021.01)
CPC (source: EP)
C25B 1/04 (2013.01); C25B 9/60 (2021.01); C25B 9/75 (2021.01); C25B 9/77 (2021.01); C25B 11/032 (2021.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4141145 A1 20230301; CA 3229870 A1 20230302; CN 117858979 A 20240409; EP 4370728 A1 20240522; WO 2023025426 A1 20230302
DOCDB simple family (application)
EP 21192595 A 20210823; CA 3229870 A 20220608; CN 202280057070 A 20220608; EP 2022065575 W 20220608; EP 22734895 A 20220608