公开(公告)号：US20250118779A1

公开(公告)日：2025-04-10

申请号：US18897833

申请日：2024-09-26

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Ross Mabon ,  Jordan N. Metz ,  Satish Bodige ,  Latoya S. Chambers ,  Divyaraj Desai

IPC: H01M8/04186 ,  H01M8/18

Abstract: Disclosed herein are a variety of systems, compositions, and methods for reversibly storing electrical energy in a redox flow battery with a unit cell potential equal to or greater than 3.5 volts. The systems include a positive section, a negative section, and an electroactive bipolar redox molecule comprising an anolyte moiety and a catholyte moiety separated by a non-conjugating insulating linker. The catholyte moiety comprises para-dimethoxybenzene and the non-conjugating insulating linker comprises at least two -CX2 linkers, wherein X comprises at least one atom selected from the group consisting of hydrogen and heteroatoms. The positive section comprises a first metal electrode in contact with the electroactive bipolar redox molecule and a supporting electrolyte dissolved in a solvent. The negative section comprises a second metal electrode in contact with the electroactive bipolar redox molecule and additional electrolyte dissolved in additional solvent.

公开(公告)号：US11936081B2

公开(公告)日：2024-03-19

申请号：US17454810

申请日：2021-11-13

Applicant: ExxonMobil Technology 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 ,  H01M4/36 ,  H01M4/60

CPC classification number: H01M8/188 ,  H01M4/368 ,  H01M4/60 ,  H01M2300/0002

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：US20240339644A1

公开(公告)日：2024-10-10

申请号：US18597482

申请日：2024-03-06

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Divyaraj Desai ,  Ross Mabon ,  Jordan N. Metz ,  Satish Bodige ,  Latoya S. Chambers ,  Jonathan D. Saathoff

IPC: H01M8/18 ,  H01M8/24

CPC classification number: H01M8/188 ,  H01M8/24

Abstract: Disclosed herein are a variety of systems, compositions, and methods for reversibly storing electrical energy in a symmetric redox flow battery with a unit cell potential equal to or greater than 3 volts. The systems include a conjugated organic molecule, a positive section, and a negative section. The conjugated organic molecule comprises a pair of electron-donating groups and a pair of electron-withdrawing groups, wherein a first electron-donating group of the electron donating groups is one ring position from a first electron-withdrawing group of the electron-withdrawing groups, and wherein a second electron-donating group is one ring position from a second electron-withdrawing group of the electron-withdrawing groups. The positive section includes a first metal electrode in contact with a catholyte comprising a portion of the conjugated organic molecule. The negative section comprises a second metal electrode in contact with an anolyte including an additional portion of the conjugated organic molecule.