公开(公告)号：US20230246215A1

公开(公告)日：2023-08-03

申请号：US18100536

申请日：2023-01-23

申请人： EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY ,  FUELCELL ENERGY, INC

发明人： Jonathan S. ROSEN ,  Gabor KISS ,  Timothy A. BARCKHOLTZ ,  Lu HAN ,  William A. LAMBERTI ,  William C. HORN ,  Abdelkader HILMI ,  Timothy C. GEARY ,  Carl A. WILLMAN ,  Adam W. FRANCO

IPC分类号： H01M8/14 ,  H01M8/0232

CPC分类号： H01M8/145 ,  H01M8/0232 ,  H01M2008/147

摘要： Systems and methods are provided for improving the operation of molten carbonate fuel cells that include cathode current collector structures that have reduced contact area with the cathode in order to create increased cathode open surface area. Molten carbonate fuel cells that have cathode collectors with reduced contact area with the cathode can have an increased tendency to suffer structural difficulties during operation, such as formation of gaps between electrolyte and one or both electrodes. Use of a sintered anode in such a fuel cell can reduce or minimize the impact of such structural difficulties. The sintered anode can provide higher pore volume and/or a more stable pore structure and/or increased structural stability in a fuel cell that includes a cathode collector that has a reduced contact area with the cathode. This can maintain a more stable interface between the cathode and electrolyte and/or between the anode and the electrolyte.

公开(公告)号：US20230231169A1

公开(公告)日：2023-07-20

申请号：US18155263

申请日：2023-01-17

申请人： EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY

发明人： Fan HE ,  Lu HAN ,  Jonathan Rosen ,  Timothy A. BARCKHOLTZ

IPC分类号： H01M8/14 ,  H01M8/244 ,  H01M8/04119

CPC分类号： H01M8/141 ,  H01M8/145 ,  H01M8/244 ,  H01M8/04119 ,  H01M2008/147 ,  H01M2300/0051

摘要： Systems and methods are provided for maintaining and/or improving operating lifetime for molten carbonate fuel cells that contain reforming catalyst in the anode when processing cathode input flows that contain sulfur oxides. The systems and methods can include a serial arrangement of molten carbonate fuel cells, where a first fuel cell includes a reduced or minimized amount of reforming catalyst in the anode. A second molten carbonate fuel cell can include reforming catalyst in the anode.