Patent ID: 11894566
Assignee: ROBERT BOSCH GMBH
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 5:
6. The fuel cell stack of claim 5, wherein at least another one of the first number of fuel cell units being a fourth fuel cell unit including an MEA with a fourth catalyst material on either or both an anode and a cathode of the fourth fuel cell unit, the fourth fuel cell unit positioned between the first reactant inlet and the first fuel cell unit, the fourth fuel cell unit being more susceptible to a pooling of a liquid, an acid corrosion, a pressure drop or a contaminant than the first fuel cell unit, the fourth catalyst material including a fourth catalyst composition, the fourth catalyst composition being different from the first catalyst composition, the fourth catalyst composition being loaded onto a fourth catalyst support at a fourth loading, the fourth loading being higher than the first loading.