Patents by Inventor Guanguang Xia
Guanguang Xia has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11276870Abstract: In accordance with embodiments of the present disclosure, a redox flow battery (RFB) may include a shell, an electrolyte storage tank assembly disposed in the shell, wherein at least a portion of the electrolyte storage tank assembly is supported by the shell, an electrochemical cell, and an electrolyte circulation system configured for fluid communication between the electrolyte storage tank assembly and the electrochemical cell. In some embodiments, at least a portion of the electrolyte storage tank assembly defines a tank assembly heat transfer system between an outer surface of the electrolyte storage tank assembly and an inner surface of the shell. In other embodiments, a pump assembly in the electrolyte circulation system is moveable between a first position and a second position. In other embodiments, a gas management system includes a first gas exchange device in fluid communication with the catholyte headspace and the anolyte.Type: GrantFiled: December 19, 2018Date of Patent: March 15, 2022Inventors: Richard O. Winter, Kathryn M. Oseen-Senda, Brian Aher, Jonathan Horner, Guanguang Xia, Jinfeng Wu, Erik K. L. Johnson, Jason I. Cruz
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Publication number: 20190326619Abstract: In accordance with embodiments of the present disclosure, a redox flow battery (RFB) may include a shell, an electrolyte storage tank assembly disposed in the shell, wherein at least a portion of the electrolyte storage tank assembly is supported by the shell, an electrochemical cell, and an electrolyte circulation system configured for fluid communication between the electrolyte storage tank assembly and the electrochemical cell. In some embodiments, at least a portion of the electrolyte storage tank assembly defines a tank assembly heat transfer system between an outer surface of the electrolyte storage tank assembly and an inner surface of the shell. In other embodiments, a pump assembly in the electrolyte circulation system is moveable between a first position and a second position. In other embodiments, a gas management system includes a first gas exchange device in fluid communication with the catholyte headspace and the anolyte.Type: ApplicationFiled: December 19, 2018Publication date: October 24, 2019Applicant: UniEnergy Technologies, LLCInventors: Richard O. Winter, Kathryn M. Oseen-Senda, Brian Aher, Jonathan Horner, Guanguang Xia, Jinfeng Wu, Erik K.L. Johnson, Jason I. Cruz
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Publication number: 20180375132Abstract: In one embodiment, a redox flow battery includes an electrochemical cell in fluid communication with anolyte and catholyte working electrolytes, and a primary OCV cell to measure the potential difference between the positive and negative working electrolyte, and a reference OCV cell to measure the potential difference between the reference cell working electrolyte, which is one of the anolyte and catholyte working electrolytes, and a reference electrolyte, wherein the reference electrolyte has a known potential. In another embodiment, a method of operating a redox flow battery includes calculating the potential values of the anolyte and catholyte working electrolytes based on the known potential values of the reference electrolyte and the first and second potential difference values obtained from the primary OCV cell and the reference OCV cell.Type: ApplicationFiled: June 21, 2018Publication date: December 27, 2018Applicant: UniEnergy Technologies, LLCInventors: Liyu Li, Guanguang Xia, Qingtao Luo, Lijun Bai, Jinfeng Wu, Yueqi Liu
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Publication number: 20180331383Abstract: In one embodiment, a cell in a redox flow battery includes a first flow frame for flow of a catholyte, a second flow frame for flow of an anolyte, and a separator between the first flow frame and the second flow frame, wherein the separator has a first side and a second side and an outer perimeter, and a gasket-and-separator assembly including a gasket assembly laminated to the separator, wherein the gasket assembly seals the outer perimeter of the separator on the first side and the second side.Type: ApplicationFiled: May 9, 2018Publication date: November 15, 2018Inventors: Jinfeng Wu, Liyu Li, Lijun Bai, Qingtao Luo, Guanguang Xia, Yueqi Liu
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Patent number: 9941527Abstract: A method of operating a redox flow battery includes providing a redox flow battery including an anolyte storage tank configured for containing a quantity of anolyte and an anolyte headspace, a catholyte storage tank configured for containing a quantity of a catholyte and a catholyte headspace, and a gas management system comprising at least one open conduit interconnecting the anolyte headspace and the catholyte headspace for free gas exchange between the anolyte and catholyte headspaces, and a passive gas exchange device in gaseous fluid communication with the anolyte headspace, the passive gas exchange device configured to release gas from the anolyte headspace to an exterior battery environment when an interior battery pressure exceeds an exterior battery pressure by a predetermined amount, and operating the battery.Type: GrantFiled: July 31, 2017Date of Patent: April 10, 2018Assignee: UniEnergy Technologies, LLCInventors: Liyu Li, Guanguang Xia, Jinfeng Wu, Chenxi Sun, Christopher Howard
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Publication number: 20180019486Abstract: A method of operating a redox flow battery includes providing a redox flow battery including an anolyte storage tank configured for containing a quantity of anolyte and an anolyte headspace, a catholyte storage tank configured for containing a quantity of a catholyte and a catholyte headspace, and a gas management system comprising at least one open conduit interconnecting the anolyte headspace and the catholyte headspace for free gas exchange between the anolyte and catholyte headspaces, and a passive gas exchange device in gaseous fluid communication with the anolyte headspace, the passive gas exchange device configured to release gas from the anolyte headspace to an exterior battery environment when an interior battery pressure exceeds an exterior battery pressure by a predetermined amount, and operating the battery.Type: ApplicationFiled: July 31, 2017Publication date: January 18, 2018Applicant: UniEnergy Technologies, LLCInventors: Liyu Li, Guanguang Xia, Jinfeng Wu, Chenxi Sun, Christopher Howard
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Patent number: 9819039Abstract: Redox flow battery systems having a supporting solution that contains Cl? ions can exhibit improved performance and characteristics. Furthermore, a supporting solution having mixed SO42? and Cl? ions can provide increased energy density and improved stability and solubility of one or more of the ionic species in the catholyte and/or anolyte. According to one example, a vanadium-based redox flow battery system is characterized by an anolyte having V2+ and V3+ in a supporting solution and a catholyte having V4+ and V5+ in a supporting solution. The supporting solution can contain Cl? ions or a mixture of SO42? and Cl? ions.Type: GrantFiled: July 31, 2015Date of Patent: November 14, 2017Assignee: Battelle Memorial InstituteInventors: Liyu Li, Soowhan Kim, Zhenguo Yang, Wei Wang, Zimin Nie, Baowei Chen, Jianlu Zhang, Guanguang Xia
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Patent number: 9722264Abstract: A redox flow battery includes an anolyte storage tank configured for containing a quantity of anolyte and an anolyte headspace; a catholyte storage tank configured for containing a quantity of a catholyte and a catholyte headspace; and a gas management system comprising at least one conduit interconnecting the anolyte headspace and the catholyte headspace, and a gas exchange device configured to contain or release an evolving gas from either or both of the anolyte and catholyte storage tanks to an exterior battery environment when an interior battery pressure exceeds an exterior battery pressure by a predetermined amount.Type: GrantFiled: July 7, 2015Date of Patent: August 1, 2017Assignee: UniEnergy Technologies, LLCInventors: Liyu Li, Guanguang Xia, Jinfeng Wu, Chenxi Sun, Christopher Howard
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Patent number: 9368824Abstract: Iron-sulfide redox flow battery (RFB) systems can be advantageous for energy storage, particularly when the electrolytes have pH values greater than 6. Such systems can exhibit excellent energy conversion efficiency and stability and can utilize low-cost materials that are relatively safer and more environmentally friendly. One example of an iron-sulfide RFB is characterized by a positive electrolyte that comprises Fe(III) and/or Fe(II) in a positive electrolyte supporting solution, a negative electrolyte that comprises S2? and/or S in a negative electrolyte supporting solution, and a membrane, or a separator, that separates the positive electrolyte and electrode from the negative electrolyte and electrode.Type: GrantFiled: November 13, 2013Date of Patent: June 14, 2016Assignee: Battelle Memorial InstituteInventors: Guanguang Xia, Zhenguo Yang, Liyu Li, Soowhan Kim, Jun Liu, Gordon L Graff
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Publication number: 20160006053Abstract: A redox flow battery includes an anolyte storage tank configured for containing a quantity of anolyte and an anolyte headspace; a catholyte storage tank configured for containing a quantity of a catholyte and a catholyte headspace; and a gas management system comprising at least one conduit interconnecting the anolyte headspace and the catholyte headspace, and a gas exchange device configured to contain or release an evolving gas from either or both of the anolyte and catholyte storage tanks to an exterior battery environment when an interior battery pressure exceeds an exterior battery pressure by a predetermined amount.Type: ApplicationFiled: July 7, 2015Publication date: January 7, 2016Applicant: UNIENERGY TECHNOLOGIES, LLCInventors: Liyu Li, Guanguang Xia, Jinfeng Wu, Chenxi Sun, Christopher Howard
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Publication number: 20150380757Abstract: Redox flow battery systems having a supporting solution that contains Cl? ions can exhibit improved performance and characteristics. Furthermore, a supporting solution having mixed SO42? and Cl? ions can provide increased energy density and improved stability and solubility of one or more of the ionic species in the catholyte and/or anolyte. According to one example, a vanadium-based redox flow battery system is characterized by an anolyte having V2+ and V3+ in a supporting solution and a catholyte having V4+ and V5+ in a supporting solution. The supporting solution can contain Cl? ions or a mixture of SO42? and Cl? ions.Type: ApplicationFiled: July 31, 2015Publication date: December 31, 2015Applicant: BATTELLE MEMORIAL INSTITUTEInventors: Liyu Li, Soowhan Kim, Zhenguo Yang, Wei Wang, Zimin Nie, Baowei Chen, Jianlu Zhang, Guanguang Xia
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Patent number: 9123931Abstract: Redox flow battery systems having a supporting solution that contains Cl? ions can exhibit improved performance and characteristics. Furthermore, a supporting solution having mixed SO42? and Cl? ions can provide increased energy density and improved stability and solubility of one or more of the ionic species in the catholyte and/or anolyte. According to one example, a vanadium-based redox flow battery system is characterized by an anolyte having V2+ and V3+ in a supporting solution and a catholyte having V4+ and V5+ in a supporting solution. The supporting solution can contain Cl? ions or a mixture of SO42? and Cl? ions.Type: GrantFiled: December 13, 2013Date of Patent: September 1, 2015Assignee: Battelle Memorial InstituteInventors: Liyu Li, Soowhan Kim, Zhenguo Yang, Wei Wang, Zimin Nie, Baowei Chen, Jianlu Zhang, Guanguang Xia
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Patent number: 9077011Abstract: Redox flow battery systems having a supporting solution that contains Cl? ions can exhibit improved performance and characteristics. Furthermore, a supporting solution having mixed SO42? and Cl? ions can provide increased energy density and improved stability and solubility of one or more of the ionic species in the catholyte and/or anolyte. According to one example, a vanadium-based redox flow battery system is characterized by an anolyte having V2+ and V3+ in a supporting solution and a catholyte having V4+ and V5+ in a supporting solution. The supporting solution can contain Cl? ions or a mixture of SO42? and Cl? ions.Type: GrantFiled: April 24, 2014Date of Patent: July 7, 2015Assignee: Battelle Memorial InstituteInventors: Liyu Li, Soowhan Kim, Zhenguo Yang, Wei Wang, Zimin Nie, Baowei Chen, Jianlu Zhang, Guanguang Xia
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Patent number: 8877674Abstract: Carbon monoxide (CO) is selectively reacted with hydrogen (H2) over a ruthenium (Ru) on alumina catalyst at a temperature of about 210 to about 290° C. To be a viable option for micro catalytic fuel processing devices, highly active, selective, and stable catalysts must be demonstrated with as large a temperature window for feasible operation as possible. We have studied the effects of metal loading, preparation method, pretreatment conditions, and choice of support on the performance of Ru-based catalysts for such applications. Catalyst testing results and catalyst characterization using XRD and BET are discussed. In one example, operating at a gas hourly space velocity (GHSV) of 13,500 hr?1, a 3% Ru/Al2O3 catalyst yielded CO outputs less than 100 ppm in a temperature range from 240° C. to 285° C., while not exceeding a hydrogen consumption of 10%. This catalyst was further successfully demonstrated in a microchannel device.Type: GrantFiled: April 26, 2006Date of Patent: November 4, 2014Assignee: Battelle Memorial InstituteInventors: Robert A. Dagle, Yong Wang, Guanguang Xia
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Publication number: 20140234753Abstract: Redox flow battery systems having a supporting solution that contains Cl? ions can exhibit improved performance and characteristics. Furthermore, a supporting solution having mixed SO42? and Cl? ions can provide increased energy density and improved stability and solubility of one or more of the ionic species in the catholyte and/or anolyte. According to one example, a vanadium-based redox flow battery system is characterized by an anolyte having V2+ and V3+ in a supporting solution and a catholyte having V4+ and V5+ in a supporting solution. The supporting solution can contain Cl? ions or a mixture of SO42? and Cl? ions.Type: ApplicationFiled: April 24, 2014Publication date: August 21, 2014Applicant: BATTELLE MEMORIAL INSTITUTEInventors: Liyu Li, Soowhan Kim, Zhenguo Yang, Wei Wang, Zimin Nie, Baowei Chen, Jianlu Zhang, Guanguang Xia
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Publication number: 20140199607Abstract: Redox flow battery systems having a supporting solution that contains Cl? ions can exhibit improved performance and characteristics. Furthermore, a supporting solution having mixed SO42? and Cl? ions can provide increased energy density and improved stability and solubility of one or more of the ionic species in the catholyte and/or anolyte. According to one example, a vanadium-based redox flow battery system is characterized by an anolyte having V2+ and V3+ in a supporting solution and a catholyte having V4+ and V5+ in a supporting solution. The supporting solution can contain Cl? ions or a mixture of SO42? and Cl? ions.Type: ApplicationFiled: December 13, 2013Publication date: July 17, 2014Applicant: BATTELLE MEMORIAL INSTITUTEInventors: Liyu Li, Soowhan Kim, Zhenguo Yang, Wei Wang, Zimin Nie, Baowei Chen, Jianlu Zhang, Guanguang Xia
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Patent number: 8771856Abstract: A redox flow battery having a supporting solution that includes Cl? anions is characterized by an anolyte having V2+ and V3+ in the supporting solution, a catholyte having Fe2+ and Fe3+ in the supporting solution, and a membrane separating the anolyte and the catholyte. The anolyte and catholyte can have V cations and Fe cations, respectively, or the anolyte and catholyte can each contain both V and Fe cations in a mixture. Furthermore, the supporting solution can contain a mixture of SO42? and Cl? anions.Type: GrantFiled: September 28, 2010Date of Patent: July 8, 2014Assignee: Battelle Memorial InstituteInventors: Liyu Li, Soowhan Kim, Zhenguo Yang, Wei Wang, Jianlu Zhang, Baowei Chen, Zimin Nie, Guanguang Xia
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Publication number: 20140079976Abstract: Iron-sulfide redox flow battery (RFB) systems can be advantageous for energy storage, particularly when the electrolytes have pH values greater than 6. Such systems can exhibit excellent energy conversion efficicency and stability and can utilize low-cost materials that are relatively safer and more environmentally friendly. One example of an iron-sulfide RFB is characterized by a positive electrolyte that comprises Fe(III) and/or Fe(II) in a positive electrolyte supporting solution, a negative electrolyte that comprises S2? and/or S in a negative electrolyte supporting solution, and a membrane, or a separator, that separates the positive electrolyte and electrode from the negative electrolyte and electrode.Type: ApplicationFiled: November 13, 2013Publication date: March 20, 2014Applicant: BATTELLE MEMORIAL INSTITUTEInventors: Guanguang Xia, Zhenguo Yang, Liyu Li, Soowhan Kim, Jun Liu, Gordon L. Graff
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Patent number: 8628880Abstract: Redox flow battery systems having a supporting solution that contains Cl? ions can exhibit improved performance and characteristics. Furthermore, a supporting solution having mixed SO42? and Cl? ions can provide increased energy density and improved stability and solubility of one or more of the ionic species in the catholyte and/or anolyte. According to one example, a vanadium-based redox flow battery system is characterized by an anolyte having V2+ and V3+ in a supporting solution and a catholyte having V4+ and V5+ in a supporting solution. The supporting solution can contain Cl? ions or a mixture of SO42? and Cl? ions.Type: GrantFiled: September 28, 2010Date of Patent: January 14, 2014Assignee: Battelle Memorial InstituteInventors: Liyu Li, Soowhan Kim, Zhenguo Yang, Wei Wang, Jianlu Zhang, Baowei Chen, Zimin Nie, Guanguang Xia
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Publication number: 20120244406Abstract: Iron-sulfide redox flow battery (RFB) systems can be advantageous for energy storage, particularly when the electrolytes have pH values greater than 6. Such systems can exhibit excellent energy conversion efficiency and stability and can utilize low-cost materials that are relatively safer and more environmentally friendly. One example of an iron-sulfide RFB is characterized by a positive electrolyte that comprises Fe(III) and/or Fe(II) in a positive electrolyte supporting solution, a negative electrolyte that comprises S2? and/or S in a negative electrolyte supporting solution, and a membrane, or a separator, that separates the positive electrolyte and electrode from the negative electrolyte and electrode.Type: ApplicationFiled: March 25, 2011Publication date: September 27, 2012Applicant: Battelle Memorial InstituteInventors: Guanguang Xia, Zhenguo Yang, Liyu Li, Soowhan Kim, Jun Liu, Gordon L. Graff