Patent ID: 9017895
Filing Date: 2015-04-28
Classification: H01M,Y02E

Abstract:
1. A fuel cell plate assembly comprising: a first plate having a feed region including a header aperture formed therein and an active region, a plurality of flow channels formed in the first plate connecting the header aperture of the feed region and the active region, the first plate further including a first step oriented transverse to the flow channels in the feed region and a second step oriented transverse to the flow channels in the active region, the first step formed in both the flow channels and lands separating the flow channels in the feed region of the first plate, the first step formed in a portion of the first plate spaced apart from a perimeter of the header aperture in a direction toward the active region of the first plate, and the second step formed only in the flow channels and not in lands separating the flow channels in the active region of the first plate, a depth of the flow channels in the active region inboard from the second step greater than the depth of the flow channels outboard from the second step.