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. 17, 2016
Filed:
Dec. 26, 2012
Honda Motor Co., Ltd., Tokyo, JP;
HONDA MOTOR CO., LTD., Tokyo, JP;
Abstract
In a solid polymer electrolyte fuel cell, a potential is swept to obtain a cyclic voltammogram. The activation treatment is completed when any of conditions (a) to (c) is satisfied. (a): the peak number between 0.1 and 0.3 V increases from one to two, and inequalities of I/I≧1.2 and I/I≧1.2 are satisfied where I, Iand Iare current values of the two peaks, and the minimum current value between the two peaks, respectively; (b): an oxidation peak within a range of 0.4 to 0.7 V decreases, and a charge amount corresponding to the peak decreases to 20 mC or less; and (c): the ratio I/Iincreases from less than 1 to 1 where Iand Iare current values of a reduction peak within a range of 0.6 to 0.7 V and a reduction peak within a range of 0.7 to 0.8 V, respectively.