Patent ID: 8603704
Filing Date: 2013-12-10
Classification: H01M,Y02E

Abstract:
1. A fuel cell stack, comprising: a pair of bipolar fuel cell plates in a stack, each plate having a first elongate bead formed on a first plate and having a sealing surface; and a second elongate bead formed on a second plate and having a trough, wherein the first elongate bead protrudes from the first plate in a first direction and the second elongate bead protrudes from the second plate in a second direction that is substantially opposite from the first direction and the trough comprises a portion of the second elongate bead that is directed toward the first direction, wherein the first elongate bead and the second elongate bead are juxtaposed, the first elongate bead of one bipolar plate interlocking with the trough of the second elongate bead of the other bipolar plate to form an interlockable bead seal to militate against a lateral slippage of the pair of bipolar plates.