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US 2026/0022474 A1Published application
Hybrid electrocatalyst layers for membrane-based electrochemical devices and processes for making the same
AssigneeOhmium International, Inc.
InventorsChockkalingam Karuppaiah, Arne Ballantine
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Abstract
Hybrid electrocatalyst layers for use in an electrochemical cell and processes for making the same are described. The hybrid electrocatalyst layers include at least one ion-conducting layer and at least one nonionic conductive catalyst layer. The processes for making the hybrid electrocatalyst layers include a sintering step, which provides greater durability of the hybrid electrocatalyst layers.
Claims20
An electrochemical cell comprising:
- an ion-conducting polymer membrane having a first surface and a second surface;
- a first hybrid electrocatalyst layer having a first surface and a second surface, the first surface of the first hybrid electrocatalyst layer contacting the first surface of the ion-conducting polymer membrane, the first hybrid electrocatalyst layer comprising:
- a first ion-conducting layer;
- and
- a first nonionic conductive catalyst layer;
- a first species diffusion/transport layer contacting the second surface of the first hybrid electrocatalyst layer, wherein the first species diffusion/transport layer contacts the first nonionic conductive catalyst layer and the ion-conducting polymer membrane contacts the first ion-conducting layer;
- a second hybrid electrocatalyst layer having a first surface and a second surface, the first surface of the second hybrid electrocatalyst layer contacting the second surface of the ion-conducting polymer membrane, the second hybrid electrocatalyst layer comprising:
- a second ion-conducting layer;
- and
- a second nonionic conductive catalyst layer;
- and
- a second species diffusion/transport layer contacting the second surface of the second hybrid electrocatalyst layer, wherein the second species diffusion/transport layer contacts the second nonionic conductive catalyst layer and the ion-conducting polymer membrane contacts the second ion-conducting layer.
9 more elements
Dependencies are inferred from the claim text.