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Title: Method of sealing a bipolar plate supported solid oxide fuel cell with a sealed anode compartment

Patent ·
OSTI ID:1531898

Methods of sealing a bipolar plate supported solid oxide fuel cell with a sealed anode compartment are provided. The solid oxide fuel cell includes a cathode, an electrolyte, and an anode, which are supported on a metallic bipolar plate assembly including gas flow fields and the gas impermeable bipolar plate. The electrolyte and anode are sealed into an anode compartment with a metal perimeter seal. An improved method of sealing is provided by extending the metal seal around the entire perimeter of the cell between an electrolyte and the bipolar plate to form the anode compartment. During a single-step high temperature sintering process the metal seal bonds to the edges of the electrolyte and anode layers, the metal foam flow field and the bipolar plate to form a gastight containment.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
W-31-109-ENG-38
Assignee:
UChicago Argonne, LLC (Chicago, IL)
Patent Number(s):
8,652,709
Application Number:
12/616,186
OSTI ID:
1531898
Resource Relation:
Patent File Date: 2009-11-11
Country of Publication:
United States
Language:
English

References (4)

Solid oxide fuel cell system patent-application September 2005
Compositionally graded metallic plates for planar solid oxide fuel cells patent January 2005
Electrochemical Pressurizer/Purifier of Hydrogen for Operation at Moderately Elevated Temperatures (Including High-Temperature Electrochemical Pump in a Membrane Generator of Hydrogen patent-application August 2003
Solid oxide fuel cell with enhanced mechanical and electrical properties patent-application December 2003