Stainless steel for polymer fuel cell separation plate having improved hydrophilicity and contact resistance and method for manufacturing same

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United States of America

PATENT NO 10991954
APP PUB NO 20190013525A1
SERIAL NO

16064891

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
POSCO CO LTDPOHANG-SI

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chung, Yang Jin Seongnam-si, KR 2 5
Jo, Ki Hoon Pohang-si, KR 6 3
Kim, Jong Hee Daejeon, KR 87 514
Kim, Kwang Min Pohang-si, KR 38 227
Lee, Jae Hwa Pohang-si, KR 12 15
Seo, Bo Sung Pohang-si, KR 54 174

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