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MANUFACTURE OF A FUEL CELL WITH LIQUID ELECTROLYTE MIGRATION PREVENTION

  • US 20120028172A1
  • Filed: 06/18/2009
  • Published: 02/02/2012
  • Est. Priority Date: 04/20/2009
  • Status: Active Grant
First Claim
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1. A method characterized by:

  • manufacturing a stack (10) of liquid acid fuel cells (11) having a barrier (32) configured to prevent migration of acid between the fuel cells (11), said method comprising the steps of;

    a. securing a barrier (32) to a land region (28) of a separator plate assembly (18) of the fuel cell, wherein the land region (28) extends from an edge (30) of the assembly (18) all or a portion of a distance between the edge (30) and an adjacent flow channel (24) defined within the separator plate assembly (18);

    b. securing the barrier (32) to acid migration (34) adjacent the land region (28) so that the barrier (32) is configured to extend across at least a portion of the land region (28) and to extend away from the adjacent edge (30) of the separator plate assembly (18) in a direction away from the flow channel (24); and

    c. securing the separator plate assembly (18) adjacent an electrode (12, 14) of the fuel cell (11) so that the flow channel (24) is adjacent the electrode (12, 14).

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