US 2019/0296371 A1 · FUEL CELL STACK

Abstract

A fuel cell stack FS, in which cell structures 3, each of which includes a frame 2 that is disposed at the periphery of the cell structure 3; and separators 4 that are alternately stacked, includes a sealing member S between a peripheral portion of a frame 2 of a first cell structure 3 on one side of one of the separators and a peripheral portion of the separator 4. In each of the separators 4, a first contacting portion 11 in contact with the sealing member S, second contacting portions 12 in contact with a frame 2 of a second cell structure 3 on the other side thereof, and connecting portions 13 that connect the first contacting portion 11 and the second contacting portions 12 are included so as to form a protruded shape portion. Each of the second contacting portions 12 includes a fixing portion fixing with the frame. According to the above, the displacement of the separator 4 attributable to a load caused by pressure difference or thermal deformation is prevented so that the sealing function is maintained.

Claims9

Dependent claims

1-7. (canceled)

Dependencies are inferred from the claim text.

Facts

Application

16/317,166Filed 14 Jul 2016

Published

26 Sep 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification12 codes

H01M 8/0273
Sealing or supporting means around electrodes, matrices or membranes: with sealing or supporting means in the form of a frame
H01M 8/0247
Collectors; Separators, e.g. bipolar separators; Interconnectors: characterised by the form
H01M 8/026
Characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant: characterised by grooves, e.g. their pitch or depth
H01M 8/0271
Details: sealing or supporting means around electrodes, matrices or membranes

Fuel cell stack

Life of this patent

Fuel cell stack

Life of this patent

Abstract

Claims9