PREVENTING MIGRATION OF LIQUID ELECTROLYTE OUT OF A FUEL CELL
摘要
A stack (10) of fuel cells (11) is provided with barriers (32) to prevent migration of a liquid electrolyte (such as phosphoric acid) out of the cells (11). The barrier (32) is secured within a step (34) defined within a land region (28) of a separator plate assembly (18) and extends from an edge (30) of the separator plate assembly (18) all or a portion of a distance between the edge (30) and a flow channel (24) defined within the separator plate assembly (18). The barrier (32) also extends away from the edge (30) a distance of between 0.051 and 2.0 millimeters (2 and 80 mils). The barrier (32) includes a hydrophobic, polymeric film (36), a pressure sensitive adhesive (38), as an assembly aid, and a fluoroelastomer bonding agent (40).
申请公布号
WO2010123479(A1)
申请公布日期
2010.10.28
申请号
WO2009US03658
申请日期
2009.06.18
申请人
UTC POWER CORPORATION;KANURI, SRIDHAR, V.;BREAULT, RICHARD, D.;TENNETI, KISHORE, KUMAR;CIPOLLINI, NED, E.
发明人
KANURI, SRIDHAR, V.;BREAULT, RICHARD, D.;TENNETI, KISHORE, KUMAR;CIPOLLINI, NED, E.