Fuel cell stack structure and fuel cell stack structure manufacturing method

a technology of fuel cell stack structure and manufacturing method, which is applied in the direction of cell components, final product manufacturing, sustainable manufacturing/processing, etc., to achieve the effect of improving output density and improving output density
US20070269702A1Inactive Publication Date: 2007-11-22NISSAN MOTOR CO LTD
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
NISSAN MOTOR CO LTD
Publication Date
2007-11-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

A fuel cell stack structure is basically provided with a stack entity and at least one tie rod. The stack entity includes a plurality of solid electrolyte fuel cell units stacked together in a stacking direction. The tie rod extends through the stack entity to fasten the solid electrolyte fuel cell units so that the solid electrolyte fuel cell units are pressed against each other in the stacking direction. The tie rod has an outer cylinder, an inner shaft fitting into the outer cylinder, and a fixing member that fastens the outer cylinder and the inner shaft together in an axial direction of the tie rod.
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Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority to Japanese Patent Application No. 2006-093522, filed on Mar. 30, 2006. The entire disclosure of Japanese Patent Application No. 2006-093522 is hereby incorporated herein by reference. BACKGROUND OF THE INVENTION

[0002] 1. Field of the Invention

[0003] The present invention relates to a fuel cell stack structure having a stack entity including a plurality of solid electrolyte fuel cells stacked together.

[0004] 2. Background Information

[0005] A conventional fuel cell stack structure includes, for example, a stack entity having a plurality of solid electrolyte fuel cell units and a tie rod that passes through the stack entity to secure and apply pressure to the solid electrolyte fuel cell units. The solid electrolyte fuel cell units are stacked together with a sealing material having a gas sealing capability being disposed between the solid electrolyte fuel cell units.

[0006] U.S. Pat. No. 6,344,290 disc...

Claims

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