Patent ID: 9748583
Date: 2017-08-29
CPC Classifications: H01M,Y02E

Claim:
1. A bipolar plate assembly having an internal coolant flow field for a fuel cell, the bipolar plate assembly comprising: an anode plate comprising: a cathode plate comprising: wherein the internal coolant side of the anode plate is bonded to the internal coolant side of the cathode plate, so that the anode plate and the cathode plate are combined with each other and form partner plates in the bipolar plate assembly; and wherein the active fuel channels align with the active oxidant channels, and the transition fuel channels of the anode plate are offset from, transverse to the direction of flow of the channels in the active regions, and nest between, the transition oxidant channels of their partner cathode plate, and vice versa, so that gaps exist between the bottoms of the transition fuel channels of the anode plate and the transition oxidant channels of their partner cathode plate which allow for a flow of coolant transverse to the transition fuel channels of the anode plate and to the transition oxidant channels of their partner cathode plate.