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.

Date of Patent:
Jun. 30, 2009

Filed:

May. 10, 2006
Applicants:

Sung-yong Cho, Suwon-si, KR;

Jong-ki Lee, Suwon-si, KR;

Yeong-chan Eun, Suwon-si, KR;

Ho-jin Kweon, Suwon-si, KR;

Inventors:

Sung-Yong Cho, Suwon-si, KR;

Jong-Ki Lee, Suwon-si, KR;

Yeong-Chan Eun, Suwon-si, KR;

Ho-Jin Kweon, Suwon-si, KR;

Assignee:

Samsung SDI Co., Ltd., Suwon-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/86 (2006.01);
U.S. Cl.
CPC ...
Abstract

An electrode substrate for a fuel cell including a diffusion layer, a first microporous layer that embeds into the diffusion layer, with the first microporous layer having a thickness in the range of 10 to 30 μm, and a second microporous layer that forms a boundary with the diffusion layer on the surface of the first microporous layer. The electrode substrate has improved performance such as increased diffusion properties of a fuel or an oxidant, increased properties of releasing moisture, and enhanced electron conductivity.


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