公开(公告)号：US20220255105A1

公开(公告)日：2022-08-11

申请号：US17454810

申请日：2021-11-13

Applicant: ExxonMobil Research and Engineering Company

Inventor： Divyaraj Desai ,  Michael R. Harper, JR. ,  Heather A. Elsen ,  Jonathan D. Saathoff ,  Mehmet D. Ertas ,  Steven W. Levine

IPC: H01M8/18 ,  H01M4/60 ,  H01M4/36

Abstract: A redox flow battery may include: a positive half-cell comprising a catholyte; a negative half-cell comprising an anolyte; and an ion permeable membrane, wherein the ion permeable membrane separates the catholyte and the anolyte, and wherein the catholyte, the anolyte, or both comprise a low-transition temperature material comprising: a redox-active phase; and an ionically conducting organic salt.

公开(公告)号：US20220173421A1

公开(公告)日：2022-06-02

申请号：US17677363

申请日：2022-02-22

Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY ,  FUELCELL ENERGY, INC.

Inventor： Jonathan Rosen ,  Heather A. Elsen ,  Gabor Kiss ,  William A. Lamberti ,  William C. Horn ,  Anding Zhang ,  Timothy C. Geary ,  Adam Franco ,  Abdelkader Hilmi

IPC: H01M8/14 ,  H01M8/0202 ,  H01M8/0289 ,  H01M8/04276 ,  H01M8/04858 ,  H01M8/0612

Abstract: An elevated target amount of electrolyte is used to initially fill a molten carbonate fuel cell that is operated under carbon capture conditions. The increased target electrolyte fill level can be achieved in part by adding additional electrolyte to the cathode collector prior to start of operation. The increased target electrolyte fill level can provide improved fuel cell performance and lifetime when operating a molten carbonate fuel cell at high current density with a low-CO2 content cathode input stream and/or when operating a molten carbonate fuel cell at high CO2 utilization.

公开(公告)号：US20200176789A1

公开(公告)日：2020-06-04

申请号：US16695281

申请日：2019-11-26

Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY ,  FUELCELL ENERGY, INC.

Inventor： Abdelkader Hilmi ,  Timothy A. Barckholtz ,  Jonathan Rosen ,  Heather A. Elsen ,  Gabor Kiss ,  Carl A. Willman ,  Chao-Yi Yuh ,  Hossein Ghezel-Ayagh ,  Timothy C. Geary

IPC: H01M8/04119 ,  H01M8/14 ,  H01M8/04746

Abstract: Molten carbonate fuel cells (MCFCs) are operated to provide enhanced CO2 utilization. This can increase the effective amount of carbonate ion transport that is achieved. The enhanced CO2 utilization is enabled in part by operating an MCFC under conditions that cause transport of alternative ions across the electrolyte. The amount of alternative ion transport that occurs during enhanced CO2 utilization can be mitigated by using a more acidic electrolyte.

公开(公告)号：US11335937B2

公开(公告)日：2022-05-17

申请号：US16695356

申请日：2019-11-26

Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY ,  FUELCELL ENERGY, INC.

Inventor： Jonathan Rosen ,  Heather A. Elsen ,  Gabor Kiss ,  William A. Lamberti ,  William C. Horn ,  Anding Zhang ,  Timothy C. Geary ,  Adam Franco ,  Abdelkader Hilmi

IPC: H01M8/14 ,  H01M8/0202 ,  H01M8/0289 ,  H01M8/04276 ,  H01M8/04858 ,  H01M8/0612 ,  H01M8/0295

Abstract: An elevated target amount of electrolyte is used to initially fill a molten carbonate fuel cell that is operated under carbon capture conditions. The increased target electrolyte fill level can be achieved in part by adding additional electrolyte to the cathode collector prior to start of operation. The increased target electrolyte fill level can provide improved fuel cell performance and lifetime when operating a molten carbonate fuel cell at high current density with a low-CO2 content cathode input stream and/or when operating a molten carbonate fuel cell at high CO2 utilization.

公开(公告)号：US20210159531A1

公开(公告)日：2021-05-27

申请号：US16695356

申请日：2019-11-26

Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY ,  FUELCELL ENERGY, INC.

Inventor： Jonathan Rosen ,  Heather A. Elsen ,  Gabor Kiss ,  William A. Lamberti ,  William C. Horn ,  Anding Zhang ,  Timothy C. Geary ,  Adam Franco ,  Abdelkader Hilmi

IPC: H01M8/14 ,  H01M8/0202 ,  H01M8/04276 ,  H01M8/0612 ,  H01M8/0289 ,  H01M8/04858

Abstract: An elevated target amount of electrolyte is used to initially fill a molten carbonate fuel cell that is operated under carbon capture conditions. The increased target electrolyte fill level can be achieved in part by adding additional electrolyte to the cathode collector prior to start of operation. The increased target electrolyte fill level can provide improved fuel cell performance and lifetime when operating a molten carbonate fuel cell at high current density with a low-CO2 content cathode input stream and/or when operating a molten carbonate fuel cell at high CO2 utilization.

公开(公告)号：US20200176783A1

公开(公告)日：2020-06-04

申请号：US16695276

申请日：2019-11-26

Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY ,  FUELCELL ENERGY, INC.

Inventor： Jonathan Rosen ,  Timothy A. Barckholtz ,  Heather A. Elsen ,  Gabor Kiss ,  Lu Han ,  Thomas M. Smith ,  Sandipan K. Das ,  Chao-Yi Yuh ,  Carl A. Willman ,  Timothy C. Geary ,  Keith E. Davis ,  Abdelkader Hilmi ,  Lawrence J. Novacco

IPC: H01M4/86 ,  H01M8/14

Abstract: Cathode collector structures and/or corresponding cathode structures are provided that can allow for improved operation for a molten carbonate fuel cell when operated under conditions for elevated CO2 utilization. A cathode collector structure that provides an increased open area at the cathode surface can reduce or minimize the amount of alternative ion transport that occurs within the fuel cell. Additionally or alternately, grooves in the cathode surface can be used to increase the open area.