Fuel cell stack and fuel cell module

Details Fuel cell stack and fuel cell module Fuel cell stack and fuel cell module

2005-01-18

2005-01-18

Yuan, Dah-Wei (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C429S006000, C429S006000, C429S006000

Reexamination Certificate

active

06844100

ABSTRACT:
A fuel cell stack includes at least one fuel cell unit and a number of interconnects defining at least two openings and including at least one flow field for flowing a reagent. Each opening defines a respective fuel manifold, including at least one each of intake and exhaust fuel manifolds. The fuel cell unit includes an anode, a cathode, and an electrolyte disposed therebetween. The anode is adjacent to and in both electrical connection and fluid communication with one of the interconnects, which has a flow field that guides a fuel flow between the intake and exhaust fuel manifolds. The cathode is adjacent to and in both electrical connection and fluid communication with another interconnect with a flow field that guides an oxidant flow. The fuel cell stack includes a perimeter isolation seal and at least two interior isolation seals for sealing the electrolyte to the respective interconnects.

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Pending USP Application, Title: “Polygonal Fuel Cell Apparatus and Method of Making”, U.S. Appl. No. 10/063,211, filed Mar. 29, 2002.
Pending USP Application, Title: “Interconnect Supported Fuel Cell Assembly, Preform and Method of Fabrication”, U.S. Appl. No. 10/166,909, filed Jun. 6, 2002.

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