发明名称 |
Polymer electrolyte fuel cell |
摘要 |
The durability of a polymer electrolyte fuel cell is very significantly improved by using a tightening pressure of about 2 to 4 kgf/cm<SUP>2 </SUP>of area of electrode; or a tightening pressure of about 4 to 8 kgf/cm<SUP>2 </SUP>of contact area between electrode and separator plate; or by selecting a value not exceeding about 1.5 mS/cm<SUP>2 </SUP>for the short-circuit conductivity attributed to the DC resistance component in each unit cell; or by selecting a value not exceeding about 3 mA/cm<SUP>2 </SUP>for the hydrogen leak current per area of electrode of each MEA. Further, in a method of manufacturing or an inspection method for a polymer electrolyte fuel cell stack, fuel cells having high durability can be efficiently manufactured by removing such MEAs or unit cells using such MEAs or such cell stacks having short-circuit conductivity values and/or hydrogen leak current values exceeding predetermined values, respectively.
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申请公布号 |
US2006251944(A1) |
申请公布日期 |
2006.11.09 |
申请号 |
US20060379239 |
申请日期 |
2006.04.19 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
HATOH KAZUHITO;KUSAKABE HIROKI;OHARA HIDEO;KOBAYASHI SUSUMU;HASE NOBUHIRO;TAKEGUCHI SHINSUKE;KANBARA TERUHISA |
分类号 |
H01M8/10;H01M4/86;H01M4/88;H01M4/92;H01M4/94;H01M4/96;H01M8/02;H01M8/24 |
主分类号 |
H01M8/10 |
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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