Back to results
US 6,641,862 B1Granted
Preparation of fuel cell electrode assemblies
AssigneeIon Power, Inc.
InventorStephen Andreas Grot
Life of this patent
Estimating the term…
Abstract
A method of manufacturing fuel cell membrane electrode assemblies using solution cast films, and the resulting electrode assemblies. The assemblies are prepared by applying a catalyst slurry onto a decal, subsequently applying ionomer solution and at least partially curing the ionomer.
Claims17
A method of manufacturing a membrane electrode assembly component comprising:
- a. applying a catalyst slurry onto a removable decal;
- b. drying the catalyst slurry to form a dried catalyst layer;
- c. applying at least one ionomer solution layer on the resulting dried catalyst layer;
- and
- d. at least partially curing the at least one ionomer solution layer to form a membrane electrode assembly component.
2 more elements
A method of manufacturing a membrane electrode assembly comprising:
- a. applying a catalyst slurry onto a removable decal;
- b. drying the catalyst slurry to form a dried catalyst layer;
- c. applying at least one ionomer solution layer on the resulting dried catalyst layer;
- d. at least partially curing the at least one ionomer solution layer to form a membrane electrode assembly component;
- and
- repeating steps (a) to (d) to prepare a second membrane electrode assembly component and joining the two components together with the ionomer layers in contact with each other and removing the decals to form a membrane electrode assembly.
3 more elements
A method of manufacturing a membrane electrode assembly component comprising:
- a. applying a catalyst slurry onto a first decal;
- b. drying the catalyst slurry to form a catalyst layer;
- c. applying at least one ionomer solution layer to a second decal;
- d. drying and at least partly curing the resulting applied ionomer solution layer;
- e. joining the two decal assemblies with the ionomer and catalyst layers in contact with each other;
- and
- f. removing the decal from the ionomer layer to form a membrane electrode assembly component.
4 more elements
A method of manufacturing a membrane electrode assembly comprising:
- a. applying a catalyst slurry onto a first decal;
- b. drying the catalyst slurry to form a catalyst layer;
- c. applying at least one ionomer solution layer to a second decal;
- d. drying and at least partly curing the resulting applied ionomer solution layer;
- e. joining the two decal assemblies with the ionomer and catalyst layers in contact with each other;
- f. removing the decal from the ionomer layer to form a membrane electrode assembly component;
- and
- and repeating steps (a) to (f) to prepare a second membrane electrode assembly component, and combining the resulting two membrane electrode assembly components by bringing the ionomer layers of each component into contact to join the ionomer layers;
- and removing the decals from the resulting membrane electrode assembly.
6 more elements
Dependencies are inferred from the claim text.