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:
Dec. 31, 1996
Filed:
Sep. 07, 1994
Nguyen Q Minh, Fountain Valley, CA (US);
AlliedSignal Inc., Morris Township, NJ (US);
Abstract
A fuel cell is made by preparing a first unfired anode ceramic tape and a second unfired electrolyte ceramic tape, with the second ceramic tape being much thinner than the first ceramic tape. The first ceramic tape and the second ceramic tape are laminated together to form an unfired anode/electrolyte laminate, which is rolled to reduce the layer thicknesses. The anode layer is embossed with a gas flow path pattern. A third unfired cathode ceramic tape and a fourth unfired interconnect ceramic tape are prepared, with the fourth ceramic tape being much thinner than the third ceramic tape. The third ceramic tape and the fourth ceramic tape are laminated together to form an unfired cathode/interconnect laminate, which is rolled to reduce the layer thicknesses. The cathode layer is embossed with a gas flow pattern. The two laminates are sintered, stacked, and bonded in the appropriate pattern to form a fuel cell element.