公开(公告)号：US11088373B2

公开(公告)日：2021-08-10

申请号：US15550758

申请日：2016-02-11

Applicant: BALLARD POWER SYSTEMS INC.

Inventor： Ian Stewart ,  Darcy McGowan ,  Emerson Gallagher

IPC: H01M8/0273 ,  H01M8/028 ,  H01M8/0286 ,  B29C45/14 ,  B29C45/00 ,  B29K21/00

Abstract: A sealed membrane electrode assembly (MEA) and a method of sealing the MEA comprises the steps of providing a frame around a periphery of the MEA to form a framed MEA; providing a through-hole in the frame; placing the framed MEA into a seal mold, the seal mold comprising a reservoir region, a seal bead region, and at least one runner region; feeding a flow-processable seal material into the reservoir region in the seal mold that is aligned with the throughhole in the frame; feeding the flow-processable seal material from the reservoir region to the seal bead region through the at least one runner region; wherein a hydraulic diameter of the at least one runner region is less than a hydraulic diameter of the reservoir region.