US 7,887,976 B2 · Paste for solid oxide fuel cells, anode-supported solid oxide fuel cells using the same, and fabricating method thereof

Abstract

Disclosed is a paste for screen printing which is used in the fabrication of an anode functional layer, an electrolyte layer, or a cathode layer of an anode-supported solid oxide fuel cell. The paste contains a raw material powder, ethyl cellulose alpha terpineol, and an alcoholic solvent in which a thermosetting binder is soluble. Also provided is a method of fabricating an anode-supported solid oxide fuel cell using the paste. Thus, a reliable high-performance, large area solid oxide fuel cell that can be economically and efficiently fabricated is provided.

Claims14

Dependent claims

A paste for a solid oxide fuel cell, wherein said past comprises:

(a) raw material powder of an anode functional layer, an electrolyte layer, a cathode functional layer, a cathode layer or a current collecting layer;
(b) ethyl cellulose as a binder;
(c) alpha terpineol as a solvent;
(d) an alcoholic solvent having solubility for a thermosetting binder and being present in an amount from 0.5 to 20 wt % of the alpha terpineol;
and
(e) a phenolic thermosetting binder in an amount from 5 to 40 wt % of the ethyl cellulose.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

11/529,212Filed 29 Sep 2006

Priority

KR 10-2005-009258130 Sep 2005

Published

US 2007/0077476 A15 Apr 2007

Granted

15 Feb 2011

Term ends

Not estimatedThe source records don’t support an estimate.

Classification11 codes

H01M 4/9066
Specially used in fuel cell operating at high temperature, e.g. SOFC: of metal-ceramic composites or mixtures, e.g. cermets
H01M 4/8621
Porous electrodes: containing only metallic or ceramic material, e.g. made by sintering or sputtering
H01M 4/8885
Heat treatment, e.g. drying, baking: sintering or firing
H01M 8/1213
Operating at high temperature, e.g. with stabilised ZrO2 electrolyte: characterised by the electrode/electrolyte combination or the supporting…

Paste for solid oxide fuel cells, anode-supported solid oxide fuel cells using the same, and fabricating method thereof

Life of this patent

Paste for solid oxide fuel cells, anode-supported solid oxide fuel cells using the same, and fabricating method thereof

Life of this patent

Abstract

Claims14