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:
Feb. 03, 2015
Filed:
Jun. 19, 2012
BO Ki Hong, Seoul, KR;
Sae Hoon Kim, Gyeonggi-do, KR;
Kook IL Han, Seoul, KR;
Kwang Ryeol Lee, Seoul, KR;
Myoung Woon Moon, Seoul, KR;
Bo Ki Hong, Seoul, KR;
Sae Hoon Kim, Gyeonggi-do, KR;
Kook Il Han, Seoul, KR;
Kwang Ryeol Lee, Seoul, KR;
Myoung Woon Moon, Seoul, KR;
Hyundai Motor Company, Seoul, KR;
Korea Institute of Science and Technology, Seoul, KR;
Abstract
Disclosed is a fuel cell with enhanced mass transfer characteristics in which a highly hydrophobic porous medium, which is prepared by forming a micro-nano dual structure in which nanometer-scale protrusions with a high aspect ratio are formed on the surface of a porous medium with a micrometer-scale roughness by plasma etching and then by depositing a hydrophobic thin film thereon, is used as a gas diffusion layer, thereby increasing hydrophobicity due to the micro-nano dual structure and the hydrophobic thin film. When this highly hydrophobic porous medium is used as a gas diffusion layer for a fuel cell, it is possible to reduce water flooding by efficiently discharging water produced by an electrochemical reaction of the fuel cell and to improve the performance of the fuel cell by facilitating the supply of reactant gases such as hydrogen and air (oxygen) to a membrane-electrode assembly (MEA).