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公开(公告)号:US20100092829A1
公开(公告)日:2010-04-15
申请号:US12520473
申请日:2007-12-19
申请人: Marie-Laure Fontaine , Fabrice Mauvy , Pascal Lenormand , Jean-Marc Bassat , Florence Ansart , Jean-Claude Grenier
发明人: Marie-Laure Fontaine , Fabrice Mauvy , Pascal Lenormand , Jean-Marc Bassat , Florence Ansart , Jean-Claude Grenier
CPC分类号: H01M4/861 , C01F17/0018 , C01G53/42 , C01G53/44 , C01G53/70 , C01P2002/34 , C01P2004/03 , C01P2004/61 , C01P2004/62 , C01P2004/84 , C01P2006/40 , H01M4/8657 , H01M4/8885 , H01M4/9016 , H01M4/9033 , H01M2008/1293
摘要: A gas electrode includes a plurality of stacked layers (2, 3, 4), wherein the first layer (2) is in contact with a solid substrate (1) while the last layer (4) has a free outer surface to be contacted with a gas, each layer being made of at least one mixed oxide selected from the group including perovskites and Ruddlesden-Popper phases, the micro-structure of the first layer (2) being different from that of the last layer (4), the porosity of the different layers (2, 3, 4) increasing from the first layer (2) towards the last layer (4), and the different layers stacked on each other defining a network of a solid interconnected material between the free outer surface of the last layer (4) and the solid substrate with a total thickness higher than 1 μm. A method for making such an electrode and its use in an electrochemical cell are disclosed.
摘要翻译: 气体电极包括多个堆叠层(2,3,4),其中第一层(2)与固体衬底(1)接触,而最后层(4)具有与第一层(2)接触的自由外表面 气体,每层由至少一种选自包括钙钛矿和Ruddlesden-Popper相的混合氧化物制成,第一层(2)的微结构与最后一层(4)的微结构不同,孔隙率 的不同层(2,3,4)从第一层(2)向最后层(4)增加,并且彼此堆叠的不同层限定了固体互连材料的网络,其中,所述互连材料的自由外表面 最后一层(4)和总厚度大于1μm的固体基质。 公开了制造这种电极的方法及其在电化学电池中的应用。