Fuel cell separator member and fuel cell stack
AssigneeHonda Motor Co., Ltd.
InventorSuguru Ohmori
Life of this patent
Estimating the term…
Abstract
A first separator constituting a separator member of a fuel cell stack is provided with a first rib that protrudes from the first separator at a portion between a first seal line and a load receiving portion toward a second separator located on the opposite side across an MEA and that extends in a line along the extending direction of the first seal line. An opening is formed in at least one end of the first rib in the extending direction thereof.
Claims15
A fuel cell separator member comprising:
- a separator forming a unit cell of a fuel cell stack and a plate-shaped load receiving portion provided on the separator so as to protrude outwardly from an outer peripheral portion of the separator, the unit cell including an opposite separator located on an opposite side of the separator across a membrane electrode assembly,
- wherein the separator includes:
- a sealing portion provided around the outer peripheral portion of the separator and making close contact with the membrane electrode assembly to prevent leakage of fluid from between the membrane electrode assembly and the separator;
- and
- a rib protruding from the separator at a portion between the sealing portion and the load receiving portion toward the opposite separator and extending in a line along an extending direction of the sealing portion, and
- an opening is formed in at least one end of the rib in an extending direction thereof.
A fuel cell stack comprising a plurality of stacked unit cells each having a fuel cell separator member, the fuel cell separator member including a separator forming the unit cell and a plate-shaped load receiving portion provided on the separator so as to protrude outwardly from an outer peripheral portion of the separator, the unit cell including an opposite separator located on an opposite side of the separator across a membrane electrode assembly,
- wherein the separator includes:
- a sealing portion provided around the outer peripheral portion of the separator and making close contact with the membrane electrode assembly to prevent leakage of fluid from between the membrane electrode assembly and the separator;
- and
- a rib protruding from the separator at a portion between the sealing portion and the load receiving portion toward the opposite separator and extending in a line along an extending direction of the sealing portion, and
- an opening is formed in at least one end of the rib in an extending direction thereof.
Dependencies are inferred from the claim text.