Lena Erika Hoober-Burkhardt

US Patent:

20210119240, Apr 22, 2021

Filed:

Oct 23, 2020

Appl. No.:

17/078633

Inventors:

- LOS ANGELES CA, US
SURYA G. PRAKASH - HACIENDA HEIGHTS CA, US
ROBERT ANISZFELD - LOS ANGELES CA, US
BO YANG - LOS ANGELES CA, US
LENA HOOBER-BURKHARDT - LOS ANGELES CA, US
SANKARGANESH KRISHNAMOORTHY - LOS ANGELES CA, US
ADVAITH MURALI - LOS ANGELES CA, US

International Classification:

H01M 8/18
H01M 8/20

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.

US Patent:

20210005918, Jan 7, 2021

Filed:

Mar 12, 2019

Appl. No.:

16/980549

Inventors:

- Los Angeles CA, US
Advaith MURALI - Los Angeles CA, US
Bo YANG - Los Angeles CA, US
Sankarganesh KRISHNAMOORTHY - Los Angeles CA, US
Lena HOOBER-BURKHARDT - Los Angeles CA, US
Robert ANISZFELD - Los Angeles CA, US

Assignee:

UNIVERSITY OF SOUTHERN CALIFORNIA - Los Angeles CA

International Classification:

H01M 8/18
C07C 309/32

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.

US Patent:

20200176802, Jun 4, 2020

Filed:

Feb 10, 2020

Appl. No.:

16/785715

Inventors:

- Los Angeles CA, US
Surya G.K. PRAKASH - Hacienda Heights CA, US
Bo YANG - Los Angeles CA, US
Lena HOOBER-BURKHARDT - Los Angeles CA, US
Sankarganesh KRISHNAMOORTHY - Los Angeles CA, US

International Classification:

H01M 8/18
H01M 8/20
H01M 8/08

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.

US Patent:

20190115594, Apr 18, 2019

Filed:

Oct 16, 2018

Appl. No.:

16/161647

Inventors:

- Los Angeles CA, US
ROBERT ANISZFELD - LOS ANGELES CA, US
SRI R. NARAYAN - ARCADIA CA, US
LENA HOOBER-BURKHARDT - LOS ANGELES CA, US
SANKARGANESH KRISHNAMOORTHY - LOS ANGELES CA, US
ADVAITH MURALI - LOS ANGELES CA, US

International Classification:

H01M 4/36
H01M 8/18
H01M 4/60
H01M 8/08
C07C 309/44
C07C 309/42
C07C 309/43

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.

US Patent:

20180097249, Apr 5, 2018

Filed:

Oct 2, 2017

Appl. No.:

15/723071

Inventors:

- LOS ANGELES CA, US
SURYA G. PRAKASH - HACIENDA HEIGHTS CA, US
ROBERT ANISZFELD - LOS ANGELES CA, US
BO YANG - LOS ANGELES CA, US
LENA HOOBER-BURKHARDT - LOS ANGELES CA, US
SANKARGANESH KRISHNAMOORTHY - LOS ANGELES CA, US
ADVAITH MURALI - LOS ANGELES CA, US

International Classification:

H01M 8/18
H01M 4/96

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.

US Patent:

20170187060, Jun 29, 2017

Filed:

Mar 14, 2017

Appl. No.:

15/458500

Inventors:

- LOS ANGELES CA, US
SURYA G.K. PRAKASH - HACIENDA HEIGHTS CA, US
BO YANG - LOS ANGELES CA, US
LENA HOOBER-BURKHARDT - LOS ANGELES CA, US
SANKARGANESH KRISHNAMOORTHY - LOS ANGELES CA, US

International Classification:

H01M 8/18
H01M 8/08

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.

US Patent:

20140370403, Dec 18, 2014

Filed:

Jun 17, 2014

Appl. No.:

14/307030

Inventors:

- Los Angeles CA, US
Surya G. K. PRAKASH - Hacienda Heights CA, US
Bo YANG - Los Angeles CA, US
Lena Hoober-Burkhardt - Los Angeles CA, US
Sankarganesh Krishnamoorthy - Los Angeles CA, US

International Classification:

H01M 8/18
H01M 8/20

US Classification:

429418

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.