Ge E Zu

US Patent:

8541121, Sep 24, 2013

Filed:

Jan 13, 2011

Appl. No.:

13/006151

Inventors:

Majid Keshavarz - Pleasanton CA, US
Saroj Kumar Sahu - Mountain House CA, US
Ge Zu - San Jose CA, US

Assignee:

Deeya Energy, Inc. - Fremont CA

International Classification:

H01M 2/38
H01M 10/34
H01M 10/52
H01M 4/36
H01M 6/24
H01M 4/48
H01M 6/20
H01M 6/00
H01M 10/00
C25B 1/00
C25B 3/00
C25C 1/00

US Classification:

429 51, 429 57, 429101, 429105, 429107, 429109, 429122, 320100, 320107, 320137, 320166, 205334, 205335, 205615, 205618, 205620, 73 102, 73 191, 73655, 422 8205, 422 91

Abstract:

A quencher for a flow cell battery is described. The quencher utilizes a quench solution formed from FeClin a dilute HCl solution in order to quench chlorine emissions from the flow cell battery. A quench sensor is further described. The quench sensor monitors the concentration level of FeClin the quench solution and may also monitor the level of the quench solution in the quencher.

US Patent:

8551299, Oct 8, 2013

Filed:

May 28, 2010

Appl. No.:

12/790613

Inventors:

Majid Keshavarz - Pleasanton CA, US
Saroj Kumar Sahu - Mountain House CA, US
Chockkalingam Karuppaiah - Fremont CA, US
Ge Zu - San Jose CA, US
Suresh Kumar Surapalan Nair - Fremont CA, US
Vasanthan Mani - Fremont CA, US

Assignee:

Deeya Energy, Inc. - Fremont CA

International Classification:

C01B 7/01
H01M 6/50
H01M 6/04

US Classification:

20415748, 20415752, 429 49, 429200

Abstract:

A method of producing HCl from Hand Clis provided. In some embodiments, the method comprises at least one photochemical chamber placed in fluid communication with at least one source of Hand at least one source of Cl. In some embodiments, the photochemical chamber effects the formation of HCl through the use of at least one source of ultraviolet radiation contained therein. In some embodiments, the HCl product may be captured and used as a gas. In some embodiments, the HCl product may be absorbed into water to form an aqueous HCl solution.

US Patent:

20110076526, Mar 31, 2011

Filed:

May 28, 2010

Appl. No.:

12/790601

Inventors:

Ge Zu - San Jose CA, US
Majid Keshavarz - Pleasanton CA, US

International Classification:

H01M 8/18

US Classification:

429 51, 429107, 429109

Abstract:

An electrolyte for a flow cell battery is provided. The electrolyte includes a concentration of chromium ions that is greater than the concentration of iron ions.

US Patent:

20110086247, Apr 14, 2011

Filed:

May 28, 2010

Appl. No.:

12/790573

Inventors:

Majid Keshavarz - Pleasanton CA, US
Chockkalingam Karuppaiah - Fremont CA, US
Ge Zu - San Jose CA, US
Saroj Kumar Sahu - Mountain House CA, US
Suresh Kumar Surapalan Nair - Fremont CA, US
Vasanthan Mani - Fremont CA, US
Gopalakrishnan R. Parakulam - Cupertino CA, US
Ali Firouzi - Los Altos CA, US
Veluchamy Rasu - Fremont CA, US

International Classification:

H01M 16/00
G01K 7/02
G01K 7/22
H01M 6/30
H01M 10/44
H01M 12/00

US Classification:

429 9, 374179, 374185, 429111, 429 50, 429105, 374E07018, 374E07028

Abstract:

A redox cell rebalance system is provided. In some embodiments, the rebalance system includes electrochemical cell and a photochemical cell. In some embodiments, the photochemical cell contains a source of ultraviolet radiation for producing HCl from Hand Clgenerated by the system. The HCl product may be collected or circulated back through the system for the rebalancing of electrolytes. A rebalance cell for use in a rebalance system is also provided. In some embodiments, the rebalance cell is the combination of an electrochemical cell and a photochemical cell. In some embodiments, a source of ultraviolet radiation is housed in the cathode compartment of the rebalance cell. In some embodiments, the source of ultraviolet radiation is used to effect the formation of HCl from Hand Clpresent in the rebalance cell. The HCl is dissolved in aqueous electrolytes contained in the rebalance cell, which can subsequently be circulated through a rebalance system for the rebalancing of redox cells.

US Patent:

20130095362, Apr 18, 2013

Filed:

Oct 12, 2012

Appl. No.:

13/651230

Inventors:

Deeya Energy, Inc. - Fremont CA, US
Ge Zu - San Jose CA, US

Assignee:

Deeya Energy, Inc. - Fremont CA

International Classification:

H01M 2/36
H01M 4/36

US Classification:

429105, 205 50

Abstract:

A Vanadium chemistry flow cell battery system is described. Methods of forming the electrolyte, a formulation for the electrolyte, and a flow system utilizing the electrolyte are disclosed. Production of electrolytes can include a combination of chemical reduction and electrochemical reduction.

US Patent:

20130316199, Nov 28, 2013

Filed:

Mar 15, 2013

Appl. No.:

13/843085

Inventors:

Ge Zu - San Jose CA, US
Gilles Y. Champagne - Sainte-Julie CA, US
Reinder J. Boersma - Webster MA, US

International Classification:

H01M 8/18

US Classification:

429 51, 429105

Abstract:

A Flow Cell System that utilizes a Vanadium Chemistry is provided. The flow cell system includes a stack, storage tanks for electrolyte, and a rebalance system coupled to correct the electrolyte oxidation state. Methods of rebalancing the negative imbalance and positive imbalance in the flow cell system are also disclosed.

US Patent:

20140023943, Jan 23, 2014

Filed:

Sep 20, 2013

Appl. No.:

14/033360

Inventors:

Saroj Kumar Sahu - Mountain House CA, US
Ge Zu - San Jose CA, US

Assignee:

Deeya Energy, Inc. - Fremont CA

International Classification:

H01M 8/18
H01M 8/20

US Classification:

429410

Abstract:

A quencher for a flow cell battery is described. The quencher utilizes a quench solution formed from FeClin a dilute HCl solution in order to quench chlorine emissions from the flow cell battery. A quench sensor is further described. The quench sensor monitors the concentration level of FeClin the quench solution and may also monitor the level of the quench solution in the quencher.

US Patent:

20150050570, Feb 19, 2015

Filed:

Oct 28, 2014

Appl. No.:

14/526435

Inventors:

- Fremont CA, US
Ge Zu - San Jose CA, US

International Classification:

H01M 8/18
H01M 8/20

US Classification:

429409, 429500

Abstract:

A Vanadium chemistry flow cell battery system is described. Methods of forming the electrolyte, a formulation for the electrolyte, and a flow system utilizing the electrolyte are disclosed. In some embodiments, the vanadium electrolyte is sulfate-free.