公开(公告)号：US20250023071A1

公开(公告)日：2025-01-16

申请号：US18350126

申请日：2023-07-11

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Anusorn Kongkanand ,  Paul T. Yu ,  Wenbin Gu

IPC: H01M8/04223 ,  H01M4/92 ,  H01M8/04119 ,  H01M8/04746 ,  H01M8/0668

Abstract: A fuel cell system and associated method of operation includes assembling a fuel cell stack including an exhaust valve, flowing a premixed gas containing carbon monoxide therethrough; and closing the exhaust valve, including prior to storage. Subsequently, the exhaust valve may be opened and a refresh operation may be executed to purge the carbon monoxide from the fuel cell stack.

公开(公告)号：US20240055620A1

公开(公告)日：2024-02-15

申请号：US17887791

申请日：2022-08-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Paul T. Yu ,  Craig S. Gittleman

IPC: H01M8/0286 ,  H01M8/0234 ,  H01M4/86 ,  H01M4/88

CPC classification number: H01M8/0286 ,  H01M8/0234 ,  H01M4/8605 ,  H01M4/8668 ,  H01M4/8875 ,  H01M4/8807

Abstract: A system for minimizing iron infusion in a fuel cell includes a catalyst coated on proton exchange membrane (CCM) having a plurality of side edge portions. The CCM includes a membrane having a first planar side and a second planar side, an anode on the first planar side of the membrane, and a cathode on the second planar side of the membrane. The system further includes an anode gas diffusion layer (GDL) including a first micro-porous layer. The first micro-porous layer is in contact with the anode. The system further includes a cathode GDL including a second micro-porous layer. The second micro-porous layer is in contact with the cathode. The system further includes an adhesive in contact with the plurality of side edge portions of the CCM. The first micro-porous layer, the second micro-porous layer, and the adhesive collectively encapsulate the CCM and minimize iron infusing into the membrane.