Patent ID: 7595125
Filing Date: 2009-09-29
Classification: B60K,B60L,H01M,Y02E,Y02T

Abstract:
1. A fuel cell stack comprising a plurality of unit cells stacked in a stacking direction, wherein each unit cell includes a first separator, a second separator, and an electrolyte electrode assembly that is sandwiched between the first and second separators, the electrolyte electrode assembly includes a pair of electrodes and an electrolyte interposed between said electrodes, said electrodes have a substantially square shape having a side length in a range of 140 mm to 200 mm, and said first and second separators have a substantially square shape having a side length in a range of 200 mm to 300 mm, and at least one of said first separator and said second separator has: wherein the coolant flow passage is formed between one of said first separator or said second separator of a unit cell and one of said first separator or said second separator of an adjacent unit cell.