公开(公告)号：US20230231169A1

公开(公告)日：2023-07-20

申请号：US18155263

申请日：2023-01-17

Applicant: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY

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

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

CPC classification number: H01M8/141 ,  H01M8/145 ,  H01M8/244 ,  H01M8/04119 ,  H01M2008/147 ,  H01M2300/0051

Abstract: 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.

公开(公告)号：US20240313239A1

公开(公告)日：2024-09-19

申请号：US18617873

申请日：2024-03-27

Applicant: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY

Inventor： Christopher HOWARD ,  Brandon J. O'NEILL ,  Paul J. RUBAS ,  Frank HERSHKOWITZ ,  Lu HAN ,  Lawrence J. NOVACCO ,  Frank J. DOBEK, JR. ,  Keith E. DAVIS ,  Brian BULLECKS

IPC: H01M8/04082 ,  H01M8/04089 ,  H01M8/244 ,  H01M8/2485

CPC classification number: H01M8/04201 ,  H01M8/04089 ,  H01M8/244 ,  H01M8/2485

Abstract: Molten carbonate fuel cell configurations are provided that allow introduction of an anode input gas flow on a side of the fuel cell that is adjacent to the entry side for the cathode input gas flow while allowing the anode and cathode to operate under co-current flow and/or counter-current flow conditions. Improved flow properties can be achieved within the anode or cathode during co-current flow or counter-current flow operation by diverting the input flow for the anode or cathode into an extended edge seal region (in an extended edge seal chamber) adjacent to the active area of the anode or cathode, and then using a baffle to provide sufficient pressure drop for even flow distribution of the anode input flow across the anode or cathode input flow across the cathode. A second baffle can be used to create a pressure drop at the anode or cathode exit.

公开(公告)号：US20230246215A1

公开(公告)日：2023-08-03

申请号：US18100536

申请日：2023-01-23

Applicant: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY ,  FUELCELL ENERGY, INC

Inventor： 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: H01M8/14 ,  H01M8/0232

CPC classification number: H01M8/145 ,  H01M8/0232 ,  H01M2008/147

Abstract: 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.