FUEL CELL STACK

摘要

A fuel cell stack has a plurality of laminated cell units, with each of the cell units including a membrane electrode assembly sandwiched between two separators, and cooling fluid passage channels are formed between each adjacent cell units for flowing cooling fluid. Displacement absorbing members have a plurality of displacement absorbing projections that absorb displacement along a laminated direction of the cell unit and are provided in the cooling fluid passage channels. The displacement absorbing projections of the displacement absorbing members are disposed so as to cancel out any bending moments generated on the cell unit.

主权项

1. A fuel cell stack comprising:
a plurality of laminated cell units, each cell unit comprising a membrane electrode assembly sandwiched between two separators; a cooling fluid passage channel for allowing cooling fluid to flow formed between respective adjacent cell units; and a displacement absorbing member in each cooling fluid passage channel having a plurality of displacement absorbing projections that absorb displacement of the cell unit along a laminated direction, wherein the displacement absorbing projections of the displacement absorbing member are disposed to cancel out a bending moment generated on the cell unit.