公开(公告)号：US20250062380A1

公开(公告)日：2025-02-20

申请号：US18804530

申请日：2024-08-14

Applicant: Exxonmobil Technology and Engineering Company

Inventor： Aaron SATTLER ,  Gabor KISS ,  Ramakrishnan VENKATARAMAN ,  April CORPUZ ,  Brandon O'NEILL

IPC: H01M8/14 ,  H01M8/0612

Abstract: In various aspects, molten carbonate fuel cell configurations are provided that include a reforming catalyst and alkali traps integrated with one or more structures within the anode gas-collection volume. The purpose of the reforming catalyst is to reform methane (or some other reformable fuel) into hydrogen. In operation, alkali metals may migrate from the fuel cell electrolyte into the anode. Unless trapped, the alkali metals may deactivate the reforming catalyst. The alkali trap prolongs the operating life of reforming catalyst within the anode volume by capturing some portion of the alkali metal in the anode gas-collection volume. This reduces an amount of alkali metal that interacts with the reforming catalyst in the anode gas-collection volume. The prolonged life of the reforming catalyst prevents a decrease in catalyst activity.

公开(公告)号：US20240072287A1

公开(公告)日：2024-02-29

申请号：US18229805

申请日：2023-08-03

Applicant: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY

Inventor： Abdelkader HILMI ,  Chao-Yi YUH ,  Timothy C. GEARY ,  Aaron SATTLER ,  William C. HORN ,  William A. LAMBERTI ,  Gabor KISS

IPC: H01M8/14 ,  H01M8/0247 ,  H01M8/244

CPC classification number: H01M8/142 ,  H01M8/0247 ,  H01M8/244 ,  H01M2008/147

Abstract: Molten carbonate fuel cell structures are provided that include a structural mesh support layer at the interface between the surface of the cathode and the cathode current collector. The structural mesh layer can have a mesh open area of 25% to 45%. In addition to providing structural support, the structural mesh layer can reduce or minimize ohmic resistance at the interface between the cathode and the cathode current collector.

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.