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US 11,677,088 B2Granted
Process for the manufacture of a solid oxide membrane electrode assembly
AssigneeCoorstek Membrane Sciences AS
InventorsDustin Beeaff, Christian Kjølseth, Per Kristian Vestre
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Abstract
A process for the preparation of a membrane electrode assembly comprising providing, in the following layer order, (I) a green supporting electrode layer comprising a composite of a mixed metal oxide and Ni oxide; (IV) a green mixed metal oxide membrane layer; and (V) a green second electrode layer comprising a composite of a mixed metal oxide and Ni oxide; and sintering all three layers simultaneously.
Claims20
A process for the preparation of a membrane electrode assembly, the process comprising:
- providing, in the following layer order,
- a green supporting electrode layer comprising precursors to a first composite of a mixed metal oxide and Ni oxide;
- a green membrane layer comprising precursors to a mixed metal oxide;
- and
- a green second electrode layer comprising precursors to a second composite of a mixed metal oxide and Ni oxide;
- and
- sintering the green supporting electrode layer, the green membrane layer, and the green second electrode layer simultaneously;
- wherein the ratio of Ni oxide to mixed metal oxide in the first composite and the second composite after sintering is 0.2 to 0.8 on a volumetric basis.
5 more elements
A membrane electrode assembly comprising, in the following layer order:
- a supporting electrode material comprising a Ni composite of formula Ni-AZraCebAcccO3-y, wherein the ratio of Ni to AZraCebAcccO3-y is 0.2 to 0.8 on a volumetric basis;
- a membrane layer material comprising AZraCebAcccO3-y;
- a second electrode material comprising a Ni composite of formula Ni-AZraCebAcccO3-y, wherein the ratio of Ni to AZraCebAcccO3-y is 0.2 to 0.8 on a volumetric basis;
- wherein, for each material independently,
- A is Ba, Sr, Ca, or a mixture thereof;
- the sum of a, b, and c equals 1;
- b is from 0 to 0.45;
- c is from 0.1 to 0.5;
- Acc is Y, Yb, Pr, Eu, Sc, In, or a mixture thereof;
- and
- y is a number such that the material is uncharged.
8 more elements
Dependencies are inferred from the claim text.