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:
May. 23, 1995
Filed:
Jun. 21, 1994
Roland Diethelm, Bauma, CH;
Sulzer Innotec AG, Winterthur, CH;
Abstract
The fuel cell battery (10), comprising stacked modules (1) and using air and gaseous fuel as reactants, is arranged substantially axially symmetrically. A module comprises the following components: a three-layer, electrochemically active plate (2) which is free from holes and is composed of a solid electrolyte (20) conducting oxide ions as well as a gas and an air electrode (21 and 22); and a plate-shaped, metallic heat exchange element (5) for heating the reactants. According to the invention a porous layer (3) provides connection between the gas electrode (21) and the heat exchange element (5), the porous layer being electrically conductive and acting to equalize thermal stresses; this layer (3) forming further together with the electrochemically active plate (2) an integrated unit.