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:
Aug. 25, 2009
Filed:
Aug. 11, 2004
Kyoung-hwan Choi, Gyeonggi-do, KR;
Kyoung-hwan Choi, Gyeonggi-do, KR;
Samsung SDI Co., Ltd., Suwon-si, KR;
Abstract
A direct liquid feed fuel cell stack that includes Membrane Electrode Assemblies (MEAs) and bipolar plates. Each MEA includes an electrolyte membrane, an anode and a cathode, and the MEA is interposed between stacked bipolar plates. Each bipolar plate includes a groove with a predetermined depth enclosing an electrode region on each face of the bipolar plate, and a plurality of fuel flow holes in the electrode region to supply fuel or oxidant to a corresponding fuel channel, with a sealing member being formed on the groove. The direct liquid feed fuel cell stack prevents fuel leakage and useless fuel consumption, thereby providing longer hours of operation.