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:
Apr. 27, 2021
Filed:
Dec. 21, 2016
Posco, Pohang-si, KR;
Jong Hee Kim, Daejeon, KR;
Kwang Min Kim, Pohang-si, KR;
Jae Hwa Lee, Pohang-si, KR;
Yang Jin Chung, Seongnam-si, KR;
Ki Hoon Jo, Pohang-si, KR;
Bo Sung Seo, Pohang-si, KR;
POSCO, Pohang-si, KR;
Abstract
Stainless steel with improved hydrophilicity and contact resistance for a Polymer Electrolyte Membrane Fuel Cell (PEMFC) separator, and a method of manufacturing the stainless steel Stainless steel are disclosed. Stainless steel for a Polymer Electrolyte Membrane Fuel Cell (PEMFC) separator according to an embodiment of the present disclosure may include: by weight percent, 0 to 0.02% of C (excluding 0), 0 to 0.02% of N (excluding 0), 0 to 0.25% of Si (excluding 0), 0 to 0.2% of Mn (excluding 0), 0 to 0.04% of P (excluding 0), 0 to 0.02% of S (excluding 0), 20 to 34% of Cr, 0 to 0.6% of V (excluding 0), 0 to 0.5% of Ti (excluding 0), 0 to 0.5% of Nb (excluding 0), and the remainder comprising iron (Fe) and other unavoidable impurities, wherein a plurality of patterns may be formed on a surface of the stainless steel in a direction that is inclined with respect to a rolling direction, and the plurality of patterns are arranged repeatedly in the rolling direction.