US 12,218,389 B2
Bipolar plate for fuel cell
Chunchuan Xu, Troy, MI (US); Zijie Lu, Novi, MI (US); Jun Yang, Bloomfield Hills, MI (US); Daniel E. Wilkosz, Saline, MI (US); and Shinichi Hirano, West Bloomfield, MI (US)
Assigned to Ford Global Technologies, LLC, Dearborn, MI (US)
Filed by FORD GLOBAL TECHNOLOGIES, LLC, Dearborn, MI (US)
Filed on Jul. 20, 2023, as Appl. No. 18/355,729.
Application 18/355,729 is a continuation of application No. 16/517,050, filed on Jul. 19, 2019, granted, now 11,742,496.
Prior Publication US 2024/0136545 A1, Apr. 25, 2024
Prior Publication US 2024/0234752 A9, Jul. 11, 2024
Int. Cl. H01M 8/0265 (2016.01); H01M 8/0206 (2016.01); H01M 8/0213 (2016.01); H01M 8/0223 (2016.01); H01M 8/0254 (2016.01); H01M 8/0258 (2016.01); H01M 8/0267 (2016.01)
CPC H01M 8/0265 (2013.01) [H01M 8/0206 (2013.01); H01M 8/0213 (2013.01); H01M 8/0223 (2013.01); H01M 8/0254 (2013.01); H01M 8/0258 (2013.01); H01M 8/0267 (2013.01); Y02E 60/50 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A fuel cell comprising:
a plurality of unit cells disposed in a stack, each unit cell including:
a membrane electrode assembly (MEA) having an anode and a cathode,
a bipolar plate having a cathode side defining a recessed pocket in fluid communication with an air port, an anode side, and coolant channels between the cathode and anode sides, wherein the bipolar plate is disposed against the MEA such that the cathode is disposed over the pocket, and
a flow guide disposed in the pocket with a front side facing the MEA and a back side facing a bottom of the pocket, the flow guide including a plurality of embossments, wherein the embossments are raised from the front side and recessed into the back side.