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US 2018/0323442 A1Published application
Preparation of advanced ccms for amfcs by amination and cross-linking of the precursor form of the ionomer
AssigneePocell Tech Ltd.
InventorsDario Dekel, Shimshon Gottesfeld
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Abstract
In an AMFC, in the formation of a CCM, the anode catalyst layer is selectively cross-linked while the cathode catalyst layer is not cross-linked. This has been found to provide structural stabilization of the CCM without loss of initial power value for a CCM without cross-linking.
Claims6
A catalyst coated membrane (CCM) for an alkaline membrane fuel cell (AMFC), comprising:
- an anion conducting membrane;
- an anode catalyst layer comprising ionomer, the anode catalyst layer being in physical contact to a first surface of the anion conducting membrane, wherein the ionomer of the anode catalyst layer is cross-linked;
- and
- a cathode catalyst layer comprising ionomer, the cathode catalyst layer being in physical contact to a second surface of the anion conducting membrane opposite the first surface, wherein the cathode catalyst layer is retained not cross-linked.
1 more element
A method of making a catalyst coated membrane (CCM) for an alkaline membrane fuel cell (AMFC), comprising:
- applying an anode catalyst layer comprising ionomer to a first surface of an anion conducting membrane;
- crosslinking the ionomer of the anode catalyst layer;
- applying a cathode catalyst layer comprising ionomer to a second surface of the anion conducting membrane opposite the first surface;
- and
- retaining the ionomer of the cathode catalyst layer not cross-linked.
2 more elements
Dependencies are inferred from the claim text.