公开(公告)号：EP4190944A1

公开(公告)日：2023-06-07

申请号：EP21850577.4

申请日：2021-07-29

申请人： Kyoto University ,  NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY ,  De Nora Permelec Ltd

发明人： UCHIMOTO Yoshiharu ,  UCHIYAMA Tomoki ,  MITSUSHIMA Shigenori ,  KURODA Yoshiyuki ,  NAGASAWA Kensaku ,  NISHIKI Yoshinori

IPC分类号： C25B11/073 ,  B01J23/78 ,  C25B1/04 ,  C25B11/04

摘要： The present invention provides an alkaline water electrolysis anode such that even when electric power having a large output fluctuation, such as renewable energy, is used as a power source, the electrolysis performance is unlikely to be deteriorated and excellent catalytic activity is retained stably over a long period of time. The alkaline water electrolysis anode is an alkaline water electrolysis anode 10 provided with an electrically conductive substrate 2 at least a surface of which contains nickel or a nickel base alloy and a catalyst layer 6 disposed on the surface of the electrically conductive substrate 2, the catalyst layer 6 containing a lithium composite oxide having a rock salt type structure, wherein the lithium composite oxide contains lithium (Li), nickel (Ni), iron (Fe), and aluminum (Al), and has an atom ratio of Li/Ni/Fe/Al/O of (0.4 to 1.1)/(0.4 to 0.8)/(0.05 to 0.2)/(0.05 to 0.2)/2.0.

公开(公告)号：EP4230773A1

公开(公告)日：2023-08-23

申请号：EP21880201.5

申请日：2021-10-14

申请人： Kyoto University ,  NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY ,  De Nora Permelec Ltd

发明人： UCHIMOTO Yoshiharu ,  UCHIYAMA Tomoki ,  MITSUSHIMA Shigenori ,  KURODA Yoshiyuki ,  NAGASAWA Kensaku ,  NISHIKI Yoshinori

IPC分类号： C25B11/073 ,  B01J23/889 ,  B01J37/02 ,  B01J37/08 ,  B01J37/14

摘要： The present invention provides an alkaline water electrolysis anode such that even when electric power having a large output fluctuation, such as renewable energy, is used as a power source, the electrolysis performance is unlikely to be deteriorated and excellent catalytic activity is retained stably over a long period of time. The alkaline water electrolysis anode is an alkaline water electrolysis anode 10 provided with an electrically conductive substrate 2 at least a surface of which contains nickel or a nickel base alloy and a catalyst layer 6 disposed on the surface of the electrically conductive substrate 2, the catalyst layer 6 containing a metal composite oxide having a quadruple perovskite oxide structure, wherein the metal composite oxide contains calcium (Ca), manganese (Mn), and nickel (Ni), and has an atom ratio of Ca/Mn/Ni/O of (1.0)/(6.6 to 7.0)/(0.1 to 0.4)/12.0.