Title:
POROUS CONDUCTIVE MATERIAL POWDER AND ITS MANUFACTURE, AND POROUS ELECTRODE USING THIS MATERIAL POWDER
Document Type and Number:
Japanese Patent JP3533694
Kind Code:
B2
Abstract:
PURPOSE: To manufacture a porous conductive material powder useful as an air electrode of a solid electrolyte type fuel cell, by mixing a conductive material power whose particle size is specified, with an organic high polymer, and baking them.
CONSTITUTION: To a conductive material powder with the particle size less than 5μm (LaMnO2 powder, for example), a specific amount of a spherical organic high polymer with the particle size about 1μm (a cellulose powder, for example) is added and mixed, and baked at about 1100°, so as to produce a porous conductive material powder. To this conductive material powder, a specific amount of a polyvinyl butyral binder, a solvent mixing ethanol with toluene, and a spherical sellulose powder with the particle size about 1μm to produce the pours are added, so as to make into an air electrode paste. By applying and baking this paste to one side surface of an yttria stabilized zirconia substrate, an air electrode of a solid electrolyte type fuel cell is formed.
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Inventors:
Sakamoto, Sadaaki
Takagi, Hiroshi
Takagi, Hiroshi
Application Number:
JP4819194A
Publication Date:
May 31, 2004
Filing Date:
March 18, 1994
Export Citation:
Assignee:
MURATA MFG CO LTD
International Classes:
C04B38/00; H01B1/00; H01M4/88; H01M8/02; H01M8/10; H01M8/12; (IPC1-7): H01M8/02; H01M4/88; H01M8/12