Patent ID: 11909083
Assignee: XEROX CORPORATION
Field: Chemical engineering (Chemistry)
Classification: CPC H  B  Y | IPC B  H

Claim 18:
19. The die of claim 16, wherein:
the plurality of inlet ports are configured to receive a first metallic ink and a second metallic ink;
the plurality of channels are configured to separately transport the plurality of fluids including the first and second metallic inks from the plurality of inlet ports to the merge section, such that the plurality of fluids flow together in the merge section to form the multilayer extrusion comprising, in order, the first microporous layer, the plurality of graded first electrode layers, a first metallic layer, the polymeric membrane layer, a second metallic layer, the plurality of graded second electrode layers, and the second microporous layer;
the polymeric membrane layer disposed between and in contact with the first and second metallic layers defines a proton exchange membrane (PEM); and
the first and second metallic layers are configured to have low hydrogen permeability sufficient to reduce an amount of hydrogen crossover at the polymeric membrane layer relative the PEM devoid of the first and second metallic layers.