GAS SEALING METHOD AND STRUCTURE FOR SOFC - NIPPON TELEGRAPH & TELEPHONE

Title:

GAS SEALING METHOD AND STRUCTURE FOR SOFC

Document Type and Number:

Japanese Patent JP2007323984

Kind Code:

A

Abstract:

To deform a gas seal part according to dimensional decrease of components such as a cell and keep sealing performance in order to realize both of electric connection and gas sealing for a long time.

A thin plate 21 for crushing is gradually deformed according to force caused by the dimensional decrease of components even if the dimension of a cell or a current collector is decreased when a cell stack is operated in high-temperature environment at 800°C or higher for a long time. A gap between interlocking parts 19, 20 is decreased according to dimensional decrease in the cell or the current collector, and electric connection between an electrode part of the cell and an interconnector is kept. Contact between the interlocking parts 19, 20 and the thin plate 21 for crushing are continued during the deforming process, and thereby, sealing performance is kept at the same time.

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Inventors:

CHIBA REIICHI
HAYASHI KATSUYA
TABATA YOSHITAKA
YOKOO MASAYUKI
NOZAKI YOSUKE
ARAKAWA MASAYASU

Application Number:

JP2006153418A

Publication Date:

December 13, 2007

Filing Date:

June 01, 2006

Export Citation:

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Assignee:

NIPPON TELEGRAPH & TELEPHONE

International Classes:

H01M8/02; H01M8/12

Domestic Patent References:

JPH097616A	1997-01-10
JP2003051332A	2003-02-21

Attorney, Agent or Firm:

Akio Miyazaki

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