EP 4347923 A1 20240410 - ELECTROLYTIC CELL FOR POLYMER ELECTROLYTE MEMBRANE ELECTROLYSIS AND METHOD FOR THE PRODUCTION THEREOF
Title (en)
ELECTROLYTIC CELL FOR POLYMER ELECTROLYTE MEMBRANE ELECTROLYSIS AND METHOD FOR THE PRODUCTION THEREOF
Title (de)
ELEKTROLYSEZELLE ZUR POLYMERELEKTROLYTMEMBRAN-ELEKTROLYSE UND VERFAHREN ZU DEREN HERSTELLUNG
Title (fr)
CELLULE ÉLECTROLYTIQUE POUR ÉLECTROLYSE À MEMBRANE ÉLECTROLYTIQUE POLYMÈRE ET SON PROCÉDÉ DE PRODUCTION
Publication
Application
Priority
- EP 21190122 A 20210806
- EP 2022065490 W 20220608
Abstract (en)
[origin: WO2023011781A1] The invention relates to an electrolytic cell (1) for polymer electrolyte membrane electrolysis with a cathode half-cell (2) and an anode half-cell (3), the cathode half-cell (2) and the anode half-cell (3) being separated from one another by means of a polymer electrolyte membrane (4). The anodic half-cell (3) has a gas diffusion layer (9b). The gas diffusion layer (9b) is made from a fine-meshed metallic carrier material (10). An anodic catalyst layer (12) with an anodic catalyst material (18) is applied onto the polymer electrolyte membrane (4). The anodic catalyst layer (12) is arranged adjacent to the gas diffusion layer (9b), wherein a thin protective layer (14) is applied in each case locally and selectively onto the fine-meshed carrier material (10) in the area of the contact points between the gas diffusion layer (9b) and the adjoining anodic catalyst layer (12). The thin protective layer (14) comprises iridium and/or iridium oxide so that the input of anodic catalyst material (18) into the gas diffusion layer (9b) is inhibited. The invention also relates to a method (100) for producing an electrolytic cell (1) for polymer electrolyte membrane electrolysis.
IPC 8 full level
C25B 1/04 (2021.01); C25B 9/23 (2021.01); C25B 11/02 (2021.01); C25B 11/032 (2021.01); C25B 11/051 (2021.01); C25B 11/063 (2021.01); C25B 11/077 (2021.01)
CPC (source: EP)
C25B 1/04 (2013.01); C25B 9/23 (2021.01); C25B 11/02 (2013.01); C25B 11/032 (2021.01); C25B 11/051 (2021.01); C25B 11/063 (2021.01); C25B 11/077 (2021.01); Y02E 60/36 (2013.01)
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 4130341 A1 20230208; AU 2022321803 A1 20240125; CA 3228183 A1 20230209; CN 117795131 A 20240329; EP 4347923 A1 20240410; WO 2023011781 A1 20230209
DOCDB simple family (application)
EP 21190122 A 20210806; AU 2022321803 A 20220608; CA 3228183 A 20220608; CN 202280054459 A 20220608; EP 2022065490 W 20220608; EP 22734892 A 20220608