公开(公告)号：US11646434B2

公开(公告)日：2023-05-09

申请号：US16980549

申请日：2019-03-12

Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA

Inventor： Sri R. Narayan ,  G. K. Surya Prakash ,  Archith Nirmalchandar ,  Advaith Murali ,  Bo Yang ,  Sankarganesh Krishnamoorthy ,  Lena Hoober-Burkhardt ,  Robert Aniszfeld

IPC: H01M8/18 ,  C07C309/32

CPC classification number: H01M8/188 ,  C07C309/32

Abstract: An organic flow battery having a positive electrode electrolyte containing organic compounds with extended conjugation and/or cyclic side chains is provided. The flow battery includes a positive electrode and a positive electrode electrolyte including first solvent and a first redox couple. The positive electrode electrolyte flows over and contacting the positive electrode. The first redox couple includes a first organic compound and a reduction product of the first organic compound. The flow battery also includes a negative electrode and a negative electrode electrolyte including a second solvent and a second redox couple. The negative electrode electrolyte flows g over and contacts the positive electrode. Typically, an ion exchange membrane is interposed between the positive electrode and the negative electrode Characteristically, the first organic compound resists crossover through the ion exchange membrane.

公开(公告)号：US11532830B2

公开(公告)日：2022-12-20

申请号：US16785715

申请日：2020-02-10

Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA

Inventor： Sri Narayan ,  Surya G. K. Prakash ,  Bo Yang ,  Lena Hoober-Burkhardt ,  Sankarganesh Krishnamoorthy

IPC: H01M8/18 ,  H01M8/20 ,  H01M8/08

Abstract: A flow battery includes a positive electrode, a positive electrode electrolyte, a negative electrode, a negative electrode electrolyte, and a polymer electrolyte membrane interposed between the positive electrode and the negative electrode. The positive electrode electrolyte includes water and a first redox couple. The first redox couple includes a first organic compound which includes a first moiety in conjugation with a second moiety. The first organic compound is reduced during discharge while during charging the reduction product of the first organic compound is oxidized to the first organic compound. The negative electrode electrolyte includes water and a second redox couple. The second couple includes a second organic compound including a first moiety in conjugation with a second moiety. The reduction product of the second organic compound is oxidized to the second organic compound during discharge.

公开(公告)号：US10566643B2

公开(公告)日：2020-02-18

申请号：US15458500

申请日：2017-03-14

Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA

Inventor： Sri Narayan ,  Surya G. K. Prakash ,  Bo Yang ,  Lena Hoober-Burkhardt ,  Sankarganesh Krishnamoorthy

IPC: H01M8/18 ,  H01M8/20 ,  H01M8/08

Abstract: A flow battery includes a positive electrode, a positive electrode electrolyte, a negative electrode, a negative electrode electrolyte, and a polymer electrolyte membrane interposed between the positive electrode and the negative electrode. The positive electrode electrolyte includes water and a first redox couple. The first redox couple includes a first organic compound which includes a first moiety in conjugation with a second moiety. The first organic compound is reduced during discharge while during charging the reduction product of the first organic compound is oxidized to the first organic compound. The negative electrode electrolyte includes water and a second redox couple. The second couple includes a second organic compound including a first moiety in conjugation with a second moiety. The reduction product of the second organic compound is oxidized to the second organic compound during discharge.

公开(公告)号：US10374261B2

公开(公告)日：2019-08-06

申请号：US15358291

申请日：2016-11-22

Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA

Inventor： Sri R. Narayan ,  G. K. Surya Prakash ,  Robert Aniszfeld ,  Aswin Manohar ,  Souradip Malkhandi ,  Bo Yang

IPC: H01M4/02 ,  H01M4/12 ,  H01M4/36 ,  H01M4/38 ,  H01M4/62 ,  H01M10/26 ,  H01M10/30 ,  H01M10/42 ,  H01M12/06 ,  H01M12/08

Abstract: An iron electrode and a method of manufacturing an iron electrode for use in an iron-based rechargeable battery are disclosed. In one embodiment, the iron electrode includes carbonyl iron powder and one of a metal sulfide additive or metal oxide additive selected from the group of metals consisting of bismuth, lead, mercury, indium, gallium, and tin for suppressing hydrogen evolution at the iron electrode during charging of the iron-based rechargeable battery. An iron-air rechargeable battery including an iron electrode comprising carbonyl iron is also disclosed, as is an iron-air battery wherein at least one of the iron electrode and the electrolyte includes an organosulfur additive.

公开(公告)号：US11245111B2

公开(公告)日：2022-02-08

申请号：US16161647

申请日：2018-10-16

Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA

Inventor： Bo Yang ,  G. K. Surya Prakash ,  Robert Aniszfeld ,  Sri R. Narayan ,  Lena Hoober-Burkhardt ,  Sankarganesh Krishnamoorthy ,  Advaith Murali ,  Archith Nirmalchandar

IPC: H01M4/36 ,  H01M8/18 ,  H01M4/60 ,  H01M8/08 ,  C07C309/44 ,  C07C309/42 ,  C07C309/43 ,  C07C303/08 ,  H01M8/1018 ,  H01M4/02

Abstract: A quinone derivative with a high redox potential that does not undergo Michael addition or proto-desulfonation. This molecule addresses the key issues faced with the positive side material of an aqueous all-organic flow battery. This new molecule is 2,5-dihydroxy-4,6-dimethylbenzene-1,3-disulfonic acid (or the disulfonate salt thereof). This quinone derivative offers good solubility, electrochemical reversibility, and robustness to charge/discharge cycling. Quinones with reduced crossover are also provided.

公开(公告)号：US10833345B2

公开(公告)日：2020-11-10

申请号：US15723071

申请日：2017-10-02

Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA

Inventor： Sri Narayan ,  Surya G. Prakash ,  Robert Aniszfeld ,  Bo Yang ,  Lena Hoober-Burkhardt ,  Sankarganesh Krishnamoorthy ,  Advaith Murali ,  Archith Nirmalchandar

IPC: H01M8/18 ,  H01M8/20 ,  H01M4/96 ,  H01M8/1018

Abstract: Quinones and related compounds for use in flow batteries are provided. Many of these compounds are found to mitigate the effects of crossover in a flow battery. Other structure for improving battery performance is provided.

公开(公告)号：US09614245B2

公开(公告)日：2017-04-04

申请号：US14307030

申请日：2014-06-17

Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA

Inventor： Sri Narayan ,  Surya G. K. Prakash ,  Bo Yang ,  Lena Hoober-Burkhardt ,  Sankarganesh Krishnamoorthy

IPC: H01M8/18 ,  H01M8/20

CPC classification number: H01M8/188 ,  H01M8/08 ,  H01M8/20 ,  H01M2250/10 ,  H01M2300/0002 ,  H01M2300/0082 ,  Y02B90/14 ,  Y02E60/528

Abstract: A flow battery includes a positive electrode, a positive electrode electrolyte, a negative electrode, a negative electrode electrolyte, and a polymer electrolyte membrane interposed between the positive electrode and the negative electrode. The positive electrode electrolyte includes water and a first redox couple. The first redox couple includes a first organic compound which includes a first moiety in conjugation with a second moiety. The first organic compound is reduced during discharge while during charging the reduction product of the first organic compound is oxidized to the first organic compound. The negative electrode electrolyte includes water and a second redox couple. The second couple includes a second organic compound including a first moiety in conjugation with a second moiety. The reduction product of the second organic compound is oxidized to the second organic compound during discharge.