Perforated cylindrical fuel cells
First Claim
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1. A method of making a fuel cell comprising:
- forming a fluid permeable structure by the steps comprising intercalating an acidic material into a plurality of natural graphite flakes and exfoliating the intercalated graphite flakes;
perforating at least a portion of the fluid permeable structure;
laminating a catalyst layer and an electrolyte to said structure to form an assembly; and
rolling said assembly into a tubular shape.
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Abstract
The invention relates to tubular fuel cells and methods of making such fuel cells. The inventive fuel cells include at least one fluid permeable structure having a plurality of perforations or channels. The perforations allow fluids, e.g., hydrogen or oxygen, to flow through the structure. The inventive methods include forming at least one perforated structure and forming the perforated structure into a tubular fuel cell or at least a potential component of a tubular fuel cell.
38 Citations
18 Claims
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1. A method of making a fuel cell comprising:
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forming a fluid permeable structure by the steps comprising intercalating an acidic material into a plurality of natural graphite flakes and exfoliating the intercalated graphite flakes;
perforating at least a portion of the fluid permeable structure;
laminating a catalyst layer and an electrolyte to said structure to form an assembly; and
rolling said assembly into a tubular shape. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of making a fuel cell comprising:
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perforating at least a portion of a fluid permeable structure by mechanically impacting an opposed surface of said structure to displace a material of construction of said structure at a plurality of predetermined locations;
rolling said perforated structure into a tubular shape; and
applying a catalyst layer and an electrolyte around said tubular structure, such that said structure communicates with said catalyst and said catalyst communicates with said electrolyte. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method of making a fuel cell comprising
applying a catalyst layer around a perforated region of a graphite tube; - and
positioning an electrolyte in communication with said catalyst layer. - View Dependent Claims (17, 18)
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Specification