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:
Jan. 07, 2003
Filed:
May. 18, 2000
Thomas Poschmann, Ulm, DE;
Ballard Power Systems AG, Kirchheim/Tech-Nabern, DE;
Abstract
Method for manufacturing a metal foil consisting of several metals in which at least one galvanic bath of several different bath types is prepared. Each bath type contains an electrolyte solution suitable for the deposition of one of the metals involved. A layer stack is then formed for the metal foil by successive alternate galvanic deposition of one layer at a time of the metals contained in the various bath types, on the circumference of a rotating deposition roller which is wired as a cathode in the corresponding galvanic bath. This step is followed by a tempering process that converts the layer stack is converted into a homogeneous alloy of the metals. Thereby, a metal membrane foil is produced for hydrogen separation from a process gas of a methanol reformation system in a fuel-cell-operated motor vehicle.