The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 13, 1999
Filed:
May. 29, 1997
Yi-Hung Chiao, Midland, MI (US);
The Dow Chemical Company, Midland, MI (US);
Abstract
A multilayer fuel cell stack comprised of a plurality of fuel cell units each having an electrolyte layer interposed between an anode layer and a cathode layer, a pair of buffer layers, and an interconnect layer. The buffer layers are interposed between each of the electrodes (anode layer and cathode layer) and the interconnect layer to improve the electrical conductivity and mechanical bonding characteristics between layers. The buffer layers have the additional effect of physically separating the layers and preventing interdiffusion among chemically incompatible components during cosintering. The materials are selected for the layers such that the fuel cell units in the fuel cell stack are cosinterable at relatively low temperatures.