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:
Jun. 25, 2013
Filed:
Apr. 03, 2009
Han-kyu Lee, Suwon-si, KR;
Ho-jin Kweon, Suwon-si, KR;
Kah-young Song, Suwon-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
A membrane-electrode assembly for a fuel cell including a first substrate and a second substrate and a catalyst layer between the first substrate and the second substrate is provided, where the first substrate is a polymer electrolyte membrane and the second substrate is a electrode substrate, or the first substrate is the electrode substrate and the second substrate is the polymer electrolyte membrane. The catalyst layer has a h/tratio of about 0.5 or more, where srepresents a point on the first substrate at one end of the catalyst layer, hrepresents a distance between the first substrate and the second substrate, srepresents a point on the first substrate closest to sat which a height (h) of the catalyst layer becomes h, and trepresents the distance between the sand the s. The membrane-electrode assembly can include a greater amount of catalyst by decreasing a shadow effect, and thereby increasing its energy density.