发明名称 |
DIFFUSION LAYER FOR AN ELECTROCHEMICAL DEVICE AND METHOD FOR PRODUCING SUCH A DIFFUSION LAYER |
摘要 |
Method for producing a diffusion layer for an electrochemical device, comprising the following steps: superposing a plurality of unidirectional webs (102a, 102b, 102c) of carbon filaments, the filaments of each web being deposited in parallel next to one another; needle punching the webs, piercing some of the filaments such that pierced portions of said filaments are entangled with other carbon filaments of the webs; cutting out part of the plurality of unidirectional webs, the carbon filaments forming an electrically conductive external surface of the diffusion layer, and in which method the needle-punching step punches right through the thickness of the plurality of webs, and/or through two opposed main faces (116, 118) of the plurality of webs, and/or with a density of impacts with the plurality of webs of between about 100 and 300 impacts/cm2. |
申请公布号 |
WO2011131737(A1) |
申请公布日期 |
2011.10.27 |
申请号 |
WO2011EP56362 |
申请日期 |
2011.04.20 |
申请人 |
COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIESALTERNATIVES;HEXCEL REINFORCEMENTS;MORIN, ARNAUD;BERAUD, JEAN-MARC;JONQUILLE, JENNY;PAUCHET, JOEL;SENECOT, JEAN-MARC |
发明人 |
MORIN, ARNAUD;BERAUD, JEAN-MARC;JONQUILLE, JENNY;PAUCHET, JOEL;SENECOT, JEAN-MARC |
分类号 |
H01M4/96;C25B1/02;C25B11/12;H01M4/86;H01M4/88;H01M8/02;H01M8/08 |
主分类号 |
H01M4/96 |
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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