发明名称 |
STAINLESS STEEL SEPARATOR FOR FUEL CELLS, METHOD FOR MAKING THE SAME, AND SOLID POLYMER FUEL CELL INCLUDING THE SAME |
摘要 |
A stainless steel separator having gas channels including grooves and projections for fuel cells. The separator has a composition including about 0.03 mass percent or less of carbon; about 0.03 mass percent or less of nitrogen, the total content of carbon and nitrogen being about 0.03 mass percent or less; about 16 mass percent to about 45 mass percent chromium; about 0.5 mass percent to about 3.0 mass percent molybdenum; and the balance being iron and incidental impurities. The separator has a contact resistance of about 100 m OMEGA •cm<2> or less. Preferably, the projections have an arithmetic average surface roughness Ra in the range of about 0.01 to about 1.0 mu m and a maximum height Ry in the range of about 0.01 to about 20 mu m. The stainless steel separator preferably further includes about 0.001 to about 0.1 mass percent silver. A fuel cell including this separator exhibits a stable output voltage for a long period of time. |
申请公布号 |
KR100488922(B1) |
申请公布日期 |
2005.05.11 |
申请号 |
KR20020009625 |
申请日期 |
2002.02.22 |
申请人 |
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发明人 |
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分类号 |
H01M8/02;C22C38/00;C22C38/22;C22C38/24;C22C38/26;C22C38/28 |
主分类号 |
H01M8/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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