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:
Mar. 15, 2011
Filed:
Jan. 23, 2006
Seung-jae Lee, Seongnam-si, KR;
Hyuk Chang, Seongnam-si, KR;
Ji-rae Kim, Seoul, KR;
Gongquan Sun, Dalian, CN;
Xinsheng Zhao, Dalian, CN;
Qin Xin, Dalian, CN;
Seung-jae Lee, Seongnam-si, KR;
Hyuk Chang, Seongnam-si, KR;
Ji-rae Kim, Seoul, KR;
Gongquan Sun, Dalian, CN;
Xinsheng Zhao, Dalian, CN;
Qin Xin, Dalian, CN;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
A method of estimating a lifespan of a fuel cell including a cathode and an anode which contain catalysts and an electrolyte membrane interposed between the anode and the cathode. A cyclic potential with a voltage ranging from a low voltage to a voltage greater than oxidation voltages of the catalysts is applied between the anode and the cathode and fuel cell performance is measured initially and after a predetermined number of cycles. The lifespan of the fuel cell may estimated based on degradation of cell performance after the predetermined number of cycles, based on CV curves obtained during the cycling of the potential and/or a change in particle size of the catalysts after the predetermined number of cycles.