发明名称 |
GAS DIFFUSION LAYER AND FUEL CELL USING SAME |
摘要 |
To provide a gas diffusion layer excellent in micro short-circuit resistance and anti-flooding characteristics by optimizing the surface shape of a gas diffusion layer.
In a gas diffusion layer for a gas diffusion electrode including at least a catalyst layer containing an electrode catalyst and a gas diffusion layer having electron conductivity and gas diffusibility, a second surface of the gas diffusion layer, which is positioned opposite to a first surface thereof to be in contact with the catalyst layer, is made rougher than the first surface. The first surface has a maximum height Ry 1 of 10 to 50 determined by JIS B 0601 surface roughness measurement method, and the second surface has a maximum height Ry 2 of 100 to 500 determined by JIS B 0601 surface roughness measurement method. |
申请公布号 |
EP1739772(A4) |
申请公布日期 |
2009.10.21 |
申请号 |
EP20050710473 |
申请日期 |
2005.02.21 |
申请人 |
PANASONIC CORPORATION |
发明人 |
YOSHIDA, AKIHIKO;YAMAUCHI, MASAKI;HORI, YOSHIHIRO;UCHIDA, MAKOTO |
分类号 |
H01M4/86;H01M4/94;H01M8/02;H01M8/04;H01M8/10 |
主分类号 |
H01M4/86 |
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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