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Sealed joint structure for electrochemical device

Patent ·
OSTI ID:1083985
; ; ;
Several members make up a joint in a high-temperature electrochemical device, wherein the various members perform different functions. The joint is useful for joining multiple cells (generally tubular modules) of an electrochemical device to produce a multi-cell segment-in-series stack for a solid oxide fuel cell, for instance. The joint includes sections that bond the joining members to each other; one or more seal sections that provide gas-tightness, and sections providing electrical connection and/or electrical insulation between the various joining members. A suitable joint configuration for an electrochemical device has a metal joint housing, a first porous electrode, a second porous electrode, separated from the first porous electrode by a solid electrolyte, and an insulating member disposed between the metal joint housing and the electrolyte and second electrode. One or more brazes structurally and electrically connects the first electrode to the metal joint housing and forms a gas tight seal between the first electrode and the second electrode.
Research Organization:
LBNL (Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States))
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-05CH11231
Assignee:
The Regents of The University of California (Oakland, CA)
Patent Number(s):
8,445,159
Application Number:
11/791,270
OSTI ID:
1083985
Country of Publication:
United States
Language:
English

References (8)

Microstructures of Y2O3-Stabilized ZrO2 Electron Beam-Physical Vapor Deposition Coatings on Ni-Base Superalloys journal April 1994
Improved preparation procedure and properties for a multilayer piezoelectric thick-film actuator journal November 1998
Joining of plain carbon steel to alumina with copper filler metal. [銅ろうによるアルミナと炭素鋼の接合] journal January 1985
Fabrication and thermal properties of a YSZ–NiCr joint with an interlayer of YSZ–NiCr functionally graded material journal October 2003
Fabrication of composite alloy cladding material by brazing process journal September 2005
Anodes for Direct Oxidation of Dry Hydrocarbons in a Solid-Oxide Fuel Cell journal October 2000
Direct Oxidation of Hydrocarbons in a Solid Oxide Fuel Cell: I. Methane Oxidation journal January 1999
Fabrication and characterization of Cu/YSZ cermet high-temperature electrolysis cathode material prepared by high-energy ball-milling method journal January 2008

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30 DIRECT ENERGY CONVERSION