Cartridge and method for handling thin film membranes
View Patent ↗A cartridge and a method for handling thin film membranes using a cartridge are disclosed. The cartridge may be used to handle any thin-film material, but is particularly useful in handling the thin membrane materials used in fabricating Membrane Electrode Assemblies (MEA) for fuel cells. In one aspect, the cartridge includes cavities positioned at opposite ends of a frame. The cavities and associated mounting arrangements are adapted to accept spools for dispensing membrane material and drawing it across the frame. The cartridge also includes a removable cover having an aperture through which the membrane material may be accessed and, for example, cut to a desired shape. Aspects also include methods and apparatus for advancing the membrane in the cartridge. Aspects of the present invention provide improved methods and devices that facilitate the handling and assembly of thin film membranes into membrane-containing devices, such as, fuel cells.
1. A cartridge for handling a thin film membrane, the cartridge comprising:
a frame having a first end and a second end;
a first cavity positioned adjacent the first end of the frame comprising a source of the thin film membrane;
a first spool being mounted in the first cavity, the first spool being adapted to provide the thin film membrane thereon;
a second cavity being positioned adjacent the second end of the frame comprising a depository for the thin film membrane;
a second spool being mounted in the second cavity, the second spool being adapted to accept the thin film membrane; and
a cover mounted above the frame, the cover having an aperture for providing access to the thin film membrane;
said frame further comprising an aperture positioned opposite the aperture in the cover being adapted to engage a vacuum table.
2. The cartridge as recited in claim 1 , further comprising at least one guide roller positioned between the first end and the second end.
3. The cartridge as recited in claim 1 , further comprising at least one wiper assembly positioned between the first end and the second end.
4. The cartridge as recited in claim 1 , wherein the thin film membrane comprises a thin film membrane in an acidic solution.
5. The cartridge as recited in claim 1 , wherein the cover is pivotally mounted to the frame.
6. The cartridge as recited in claim 1 , further comprising means for conveying the thin film membrane from the first cavity to the second cavity.
7. The cartridge as recited in claim 6 , wherein the means for conveying the thin-film membrane comprises automated means for rotating the second spool.