Home | Links | Contact Us | More About Intellectual Property | Bookmark

Search patents:

Home

Fuel Cells

Supporting-member-for-solid-oxide-fuel-cell

Polymeric enclosures for non-aqueous active metal cells

The present invention contemplates forming the container or housing for an active metal ...

Glass seals for sealing beta-alumina in electro-chemical cells or other energy conversion devices, glasses for use in such seals and cells or other energy conversion devices with such seals

According to the present invention, a glass for sealing to beta-alumina in an electro-chemical cell ...

Antenna connector

I claim as my invention 1. An electrical connector especially suitable for coupling an antenna ...

Method for sealing an electrochemical cell employing an improved reinforced cover assembly

There is disclosed herein a sealed cylindrical, resealably vented electrochemical cell for storage ...

Composite and manufacturing method therefor

Object of the Invention Formation of anatase-type titanium dioxide films requires a high ...

Self-locking female receptor for electrical cord

It is an objective of the present invention to provide an effective and economical female ...

Aircraft battery

The foregoing and other objects of the invention are accomplished by a lead-acid aircraft battery ...

Magnetic recording medium

OF THE PREFERRED EMBODIMENTS The binder to be employed in the magnetic recording medium according ...

Piezoelectric buzzer

Accordingly, it is an object of the present invention to provide a piezoelectric buzzer requiring ...

Electrical connector for a microphone

An object, therefore, of the invention is to provide a new and improved electrical connector for ...

Supporting member for solid oxide fuel cell

Details

Inventors: Matsuo, Youji; Arai, Toshio;
Assignee: Yoshida Kogyo K.K. (Tokyo, JP)
Primary Examiner: Skapars; Anthony
Assistant Examiner:
Attorney, Agent or Firm: Flynn, Thiel, Boutell & Tanis

The present invention provides a composite material suitable for use as the supporting member for a fuel cell, the composite material comprising (100-A) % by mole of MgO and A % by mole of MgAl.sub.2 O.sub.4 (wherein A is 14 to 64) and having a coefficient of thermal expansion close to that of a electrolyte YSZ, which is used as a solid electrolyte in the fuel cell, and a high thermal conductivity. By using the above supporting member, no cracking occurs in the electrolyte at high temperature during the use thereof and further during the preparation thereof, so that no lowering in the electromotive force occurs.

DETAILED DESCRIPTION The present invention solves the above-described problems through the use of a supporting member for a solid oxide fuel cell, which member has a coefficient of thermal expansion close to that of YSZ used as the material for the electrolyte and a high thermal conductivity.
The present invention relates to a supporting member for a solid oxide fuel cell having a surface provided with a cell part comprising an inner electrode, an outer electrode and, interposed between said inner and outer electrodes, a zirconia electrolyte stabilized with yttria, characterized in that the supporting member is made of a composite material comprising (100 -A) % by mole of MgO and A % by mole of MgAl.
sub.
2 O.
sub.
4 wherein A is 14 to 64.
The above-specified composite material for the supporting member is preferably prepared by sintering a mixture comprising (100 -X) % by mole of MgO and X by mole of Al.
sub.
2 O.
sub.
3 wherein X is 7 to 32.

Related patents

	Nonaqueous secondary battery The object of the present invention has been accomplished by the following nonaqueous secondary batteries. (1) A nonaqueous secondary battery comprising a positive ...
	System and method for multilayer fabrication of lithium polymer batteries and cells Manufacturing complexity, cost, and scrap rate can be reduced, production rates increased, and better contact between the grid and the electrode material achieved by a ...
	Vapor-deposition material for the production of optical coatings of medium refractive index What is claimed is: 1. A process for the preparation of a vapor-deposition material comprising a compound of the formula La.sub.1-x Al.sub.1+x O.sub.3, where x=0 to 0.84,...
	Secondary fuel cell This invention relates to a secondary fuel cell and, more particularly, to a secondary fuel cell having more efficient electrode structures. In accordance with the ...
	Air heating and cooling system for aircraft batteries The present invention is a system for maintaining an aircraft battery at its optimum operating temperature. By maintaining the temperature of the battery cell ...
	Elongate composite article Referring to the drawing, an elongate composite article 10 has a core of particulate treating agent 11 and a tubular sheath 12 enclosing the core. The sheath is ...
	Preparation of nickel oxyhydroxide Nickel oxyhydroxide is prepared by combining a nickel hydroxide and a hydroxide salt in an inert atmosphere to form a mixture. The mixture can be a dry mixture. The ...
	Temperature responsive battery tester The battery tester of the present invention combines an electrical element, such as a zener diode, which exhibits a threshold conducting voltage with a temperature ...
	Metal platelet fuel cells production and operation methods We claim: 1. A method for producing fuel cell separator assemblies comprising the steps of: a) forming in thin sheet stock a plurality of different individual platelets ...
	Pill-dispensing and storage container The inventor claims: 1. A dispensing-and-storage container for pills and like medication comprising: a box-like receptacle having a forward wall member, a rear wall ...

0.074
Archive: All patents - Links Copyright (c)2006 Eipa-patents.org - All rights reserved