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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.:

US 9692070 B1

PDFFull Text
Date of Patent:
Jun. 27, 2017

Filed:

Jul. 01, 2013

Carbon substrate for gas diffusion layer, gas diffusion layer using the same, and electrode for fuel cell, membrane-electrode assembly and fuel cell comprising the gas diffusion layer

Applicants:

Jntc Co., Ltd., Hwaseong-si, Gyeonggi-do, KR;

Jntg Co., Ltd., Hwaseong-si, Gyeonggi-do, KR;

Inventors:

Eun Sook Lee, Suwon-si, KR;

Do Hun Kim, Hwaseong-si, KR;

Eun Chong Kim, Gunpo-si, KR;

Jy Young Jyoung, Suwon-si, KR;

Jung Mi Gwak, Suwon-si, KR;

Sang Jin Choi, Yongin-si, KR;

Tae Nyun Kim, Hwaseong-si, KR;

Jung Kyu Lee, Osan-si, KR;

Assignees:

JNTG Co., Ltd., , KR;

JNTC Co., Ltd., , KR;

Attorney:

St. Onge Steward Johnston & Reens, LLC

Primary Examiner:

Barbara Gilliam

Assistant Examiner:

Stephan Essex

Int. Cl.
CPC ...
H01M 8/10 (2016.01); D21H 13/50 (2006.01); H01M 4/86 (2006.01); H01M 8/0234 (2016.01); H01M 8/0245 (2016.01); D21H 27/08 (2006.01); D21H 13/12 (2006.01); D21H 13/14 (2006.01); D21H 13/16 (2006.01); D21H 15/02 (2006.01); D21H 17/11 (2006.01); D21H 21/52 (2006.01); H01M 8/0243 (2016.01); C04B 35/52 (2006.01); C04B 35/56 (2006.01); C04B 35/80 (2006.01); C04B 35/83 (2006.01); H01M 4/88 (2006.01);
U.S. Cl.
CPC ...
H01M 8/1002 (2013.01); C04B 35/521 (2013.01); C04B 35/56 (2013.01); C04B 35/806 (2013.01); C04B 35/83 (2013.01); D21H 13/12 (2013.01); D21H 13/14 (2013.01); D21H 13/16 (2013.01); D21H 13/50 (2013.01); D21H 15/02 (2013.01); D21H 17/11 (2013.01); D21H 21/52 (2013.01); D21H 27/08 (2013.01); H01M 4/861 (2013.01); H01M 8/0234 (2013.01); H01M 8/0243 (2013.01); H01M 8/0245 (2013.01); C04B 2235/526 (2013.01); C04B 2235/5248 (2013.01); C04B 2235/5252 (2013.01); C04B 2235/5264 (2013.01); C04B 2235/5268 (2013.01); C04B 2235/5272 (2013.01); C04B 2235/616 (2013.01); C04B 2235/775 (2013.01); H01M 4/8807 (2013.01);
Abstract

A carbon substrate for a gas diffusion layer that has a porosity gradient in a thickness direction thereof, a gas diffusion using the carbon substrate, an electrode and a membrane-electrode assembly for a fuel cell that include the gas diffusion layer, and a fuel cell including the membrane-electrode assembly having the gas diffusion layer are provided. The gas diffusion layer has improved water discharge ability and improved bending strength both in the machine direction and cross-machine direction.

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