Patents by Inventor Saravanan Kuppan

Saravanan Kuppan 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).

  • Patent number: 10923765
    Abstract: A method of decontaminating a lithium conducting ceramic oxide material. The method includes soaking the lithium conducting ceramic oxide material having a first thickness of surface contaminants in a first organic solvent containing an inorganic salt at an inorganic salt concentration to obtain a soaked lithium conducting ceramic oxide material. The method further includes rinsing the soaked lithium conducting ceramic oxide material in a second organic solvent to obtain a decontaminated lithium conducting ceramic oxide material having a second thickness of surface contaminants less than the first thickness of surface contaminants.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: February 16, 2021
    Assignee: ROBERT BOSCH GMBH
    Inventors: Saravanan Kuppan, Katherine Harry, Michael Metzger, Nathan Craig, Jake Christensen
  • Publication number: 20210039970
    Abstract: A desalination battery includes a working intercalation electrode in a first compartment, a counter intercalation electrode in a second compartment, both compartments including saline water solution with an elevated concentration of dissolved salts, an ion exchange membrane arranged between the compartments, a voltage source arranged to supply voltage to the electrodes, and a sacrificial compound configured to neutralize charge within the first compartment at a predetermined voltage while being consumed by oxidation or reduction reactions upon an activation of the working electrode.
    Type: Application
    Filed: August 8, 2019
    Publication date: February 11, 2021
    Inventors: Michael METZGER, Soo KIM, Saravanan KUPPAN, Sondra HELLSTROM, Christina JOHNSTON, Nathan CRAIG, Jake CHRISTENSEN
  • Publication number: 20200399149
    Abstract: A desalination battery cell includes a first compartment separated by an anion exchange membrane from a second compartment, each of the first and second compartments configured to contain a saline water solution having a concentration of dissolved salts c1 and having first and second intercalation host electrodes, respectively, arranged to be in fluid communication with the solution, a voltage source configured to supply electric current to the first and second intercalation host electrodes to release cations into the solution, and a controller programmed to adjust an amount of the electric current being supplied to change direction of anions, present in the solution, passing through the anion exchange membrane between the first and second compartments such that the first and second compartments alternately collect and disperse salt from the solution and the first and second compartments release desalinated water solution having a concentration c2 of dissolved salts and a brine solution having a concentration
    Type: Application
    Filed: June 21, 2019
    Publication date: December 24, 2020
    Inventors: Soo KIM, Michael METZGER, Jonathan MAILOA, Mordechai KORNBLUTH, Georgy SAMSONIDZE, Saravanan KUPPAN, Sondra HELLSTROM, Boris KOZINSKY, Nathan CRAIG, Jake CHRISTENSEN
  • Publication number: 20200207646
    Abstract: A desalination battery includes a container configured to contain a saline water solution having a first concentration c1 of dissolved salts; first and second intercalation hosts, arranged to be in fluid communication with the saline water solution, at least the first intercalation host including expanded graphite having a plurality of graphene layers with an interlayer spacing between the graphene layers in z-direction greater than 0.34 nm; and a power source configured to supply electric current to the first and second intercalation hosts such that the first and second intercalation hosts reversibly store and release cations and anions from the saline water solution located between the plurality of graphene layers to generate a fresh water solution having a second concentration c2 of dissolved salts and a brine solution having a third concentration c3 of dissolved salts within the container such that c3>c1>c2.
    Type: Application
    Filed: December 27, 2018
    Publication date: July 2, 2020
    Inventors: Soo KIM, Jonathan MAILOA, Mordechai KORNBLUTH, Georgy SAMSONIDZE, Michael METZGER, Saravanan KUPPAN, Sondra HELLSTROM, Boris KOZINSKY, Nathan CRAIG
  • Publication number: 20200212483
    Abstract: A method of decontaminating a lithium conducting ceramic oxide material. The method includes soaking the lithium conducting ceramic oxide material having a first thickness of surface contaminants in a first organic solvent containing an inorganic salt at an inorganic salt concentration to obtain a soaked lithium conducting ceramic oxide material. The method further includes rinsing the soaked lithium conducting ceramic oxide material in a second organic solvent to obtain a decontaminated lithium conducting ceramic oxide material having a second thickness of surface contaminants less than the first thickness of surface contaminants.
    Type: Application
    Filed: December 31, 2018
    Publication date: July 2, 2020
    Inventors: Saravanan KUPPAN, Katherine HARRY, Michael METZGER, Nathan CRAIG, Jake CHRISTENSEN
  • Publication number: 20200212455
    Abstract: An anticorrosive and conductive substrate includes a bulk portion and a surface portion including a magnesium titanium material having a formula (I) TixMg1-xOy (I), where x is a number from 0 to ?1 and y is a number from 1 to ?2, and wherein at least about 50% of the magnesium titanium material has a cubic crystal structure, and wherein the magnesium titanium material is configured to impart anticorrosive and conductive properties to the substrate.
    Type: Application
    Filed: December 27, 2018
    Publication date: July 2, 2020
    Inventors: Mordechai KORNBLUTH, Soo KIM, Jonathan MAILOA, Lei CHENG, Georgy SAMSONIDZE, Boris KOZINSKY, Nathan CRAIG, Saravanan KUPPAN, Sondra HELLSTROM, Jake CHRISTENSEN
  • Publication number: 20200200408
    Abstract: An electrostatic charging air cleaning device having first and second pre-chargers. The first pre-charger is configured to generate a first corona discharge to electrostatically charge PM in the incoming air stream with a first charge to form a first exiting air stream exiting the first pre-charger. The second pre-charger is configured to generate a second corona discharge to electrostatically charge PM in the incoming air stream with a second charge to form a second exiting air stream exiting the second pre-charger. The device also includes a separator having apertures such that PM in the second exiting air stream passes through the separator to agglomerate with PM in the first exiting air stream to form agglomerated particles. The apertures are sized such that the agglomerated particles are larger than the apertures to preclude the agglomerated particles from reentering the second exiting air stream.
    Type: Application
    Filed: December 21, 2018
    Publication date: June 25, 2020
    Inventors: Michael METZGER, Saravanan KUPPAN, Sondra HELLSTROM, Nathan CRAIG, Christina JOHNSTON, Jake CHRISTENSEN
  • Publication number: 20200197953
    Abstract: A method of forming a collection electrode for an electrostatic charging air cleaning device. The method includes forming a slurry including a carbon black powder material, a polymeric binder material and a liquid solvent material. The method further includes applying the slurry to a substrate material. The method also includes curing the slurry to obtain a coating layer on the substrate material to form the collection electrode.
    Type: Application
    Filed: December 21, 2018
    Publication date: June 25, 2020
    Inventors: Michael METZGER, Saravanan KUPPAN, Sondra HELLSTROM, Nathan CRAIG, Christina JOHNSTON, Jake CHRISTENSEN
  • Publication number: 20200148560
    Abstract: A device for removing ions from a flow of water includes a first electrode and a counter-electrode opposite the first electrode in the flow of water. The first electrode contains at least one material which is capable of intercalating one or both of Mg2+ and Ca2+ ions in the flow of water. The counter-electrode can include a material capable of binding to anions in the flow of water.
    Type: Application
    Filed: October 31, 2019
    Publication date: May 14, 2020
    Inventors: Sondra Hellstrom, Michael Metzger, Saravanan Kuppan, Jake Christensen
  • Publication number: 20200123028
    Abstract: A desalination battery includes a first electrode, a second electrode, an intercalation compound contained in the first electrode, a container configured to contain a saline water solution, and a power source. The intercalation compound includes at least one of a metal oxide, a metalloid oxide, a metal oxychloride, a metalloid oxychloride, and a hydrate thereof with each having a ternary or higher order. The first and second electrodes are configured to be arranged in fluid communication with the saline water solution. The power source is configured to supply electric current to the first and second electrodes in different operating states to induce a reversible intercalation reaction within the intercalation compound. The intercalation compound reversibly stores and releases target anions from the saline water solution to generate a fresh water solution in one operating state and a wastewater solution in another operating state.
    Type: Application
    Filed: October 7, 2019
    Publication date: April 23, 2020
    Inventors: Soo Kim, Mordechai Kornbluth, Jonathan Mailoa, Georgy Samsonidze, Michael Metzger, Saravanan Kuppan, Sondra Hellstrom, Boris Kozinsky, Nathan Craig
  • Publication number: 20200123027
    Abstract: A water softening device includes a container configured to contain water, first and second electrodes arranged in fluid communication with the water, and a power source. The first electrode includes a conversion material that has a first composition and a second composition coexisting with the first composition. The first composition includes calcium ions bonded thereto and the second composition includes sodium ions bonded thereto. The power source supplies current in a first operating state such that the second composition exchanges sodium ions for calcium ions in the water to generate a soft water solution. The first and second electrodes are connected in a second operating state such that the first composition exchanges calcium ions for sodium ions in the water to generate a wastewater solution. The conversion material undergoes a reversible conversion reaction to convert between the first and second compositions within the water stability window.
    Type: Application
    Filed: October 2, 2019
    Publication date: April 23, 2020
    Inventors: Mordechai C. Kornbluth, Jonathan Mailoa, Soo Kim, Georgy Samsonidze, Boris Kozinsky, Saravanan Kuppan, Sondra Hellstrom, Nathan Craig
  • Publication number: 20200123029
    Abstract: A device for removing chloride-containing salts from water includes a container configured to contain saline water, a first electrode arranged in fluid communication with the saline water, and a power source. The first electrode includes a conversion material that is substantially insoluble in the saline water and has a composition that includes at least two or more of aluminum, chlorine, copper, iron, oxygen, and potassium. The composition varies over a range with respect to a quantity of chloride ions per formula unit. The power source supplies current to the first electrode in a first operating state so as to induce a reversible conversion reaction in which the conversion material bonds to the chloride ions in the saline water to generate a treated water solution. The conversion material dissociates the chloride ions therefrom into the saline water solution in a second operating state to generate a wastewater solution.
    Type: Application
    Filed: October 8, 2019
    Publication date: April 23, 2020
    Inventors: Mordechai C. Kornbluth, Jonathan Mailoa, Soo Kim, Georgy Samsonidze, Boris Kozinsky, Saravanan Kuppan, Sondra Hellstrom, Nathan Craig
  • Publication number: 20200106105
    Abstract: A method of forming a metal oxy-fluoride surface on lithium metal oxide cathode material particles is disclosed. Such a metal oxy-fluoride surface may help to prevent lithium metal oxide cathode active materials from reacting with water, thus enabling aqueous processing of cathodes made from such materials in the manufacture of lithium batteries. Such a method may also reduce lithium battery manufacturing costs and time by substituting water for currently-used organic solvents that are expensive and require special handling and disposal. Such a method may also reduce the cost of lithium metal oxide cathode active materials as the requirements for moisture-free manufacture, storage, and processing will be reduced or eliminated.
    Type: Application
    Filed: December 12, 2018
    Publication date: April 2, 2020
    Inventors: Lei Cheng, Saravanan Kuppan, Sondra Hellstrom, Michael Metzger, Yiqing Huang, Tristan Palmer, Hany Basam Eitouni
  • Publication number: 20190305289
    Abstract: A battery includes at least one battery cell having an electrode assembly. The electrode assembly includes a cathode layer that has a cathode active material and a matrix material. The electrode assembly further includes an anode layer and a separator layer interposed between the cathode and the anode. The cathode active material is stabilized, and the at least one battery cell is configured to be operated at a temperature that is greater than 45° C.
    Type: Application
    Filed: March 29, 2018
    Publication date: October 3, 2019
    Inventors: Sondra Hellstrom, Saravanan Kuppan, Ethan Huang, Thomas Eckl, Benedikt Ziebarth
  • Patent number: 10090516
    Abstract: The present disclosure provides a phosphate framework electrode material for sodium ion battery and a method for synthesizing such electrode material. A surfactant and precursors including a sodium precursor, a phosphate precursor, a transition metal precursor are dissolved in a solvent and stirred for sufficient mixing and reaction. The precursors are reacted to yield a precipitate of particles of NaxAbMy(PO4)zXn compound and with the surfactant attached to the particles. The solvent is then removed and the remaining precipitate is sintered to crystallize the particles. During sintering, the surfactant is decomposed to form a carbon network between the crystallized particles and the crystallized particles and the carbon matrix are integrated to form the electrode material.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: October 2, 2018
    Assignee: National University of Singapore
    Inventors: Palani Balaya, Saravanan Kuppan, Bing Liu, Chad William Mason
  • Patent number: 9527754
    Abstract: The present invention relates to the preparation of a mesoporous substantially pure anatase titanium oxide (meso-TiO2) and its use in electrochemical devices, in particular lithium-ion batteries.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: December 27, 2016
    Assignee: National University of Singapore
    Inventors: Palani Balaya, Ananthanarayanan Krishnamoorthy, Saravanan Kuppan
  • Publication number: 20150191364
    Abstract: The present invention relates to the preparation of a mesoporous substantially pure anatase titanium oxide (meso-TiO2) and its use in electrochemical devices, in particular lithium-ion batteries.
    Type: Application
    Filed: January 12, 2015
    Publication date: July 9, 2015
    Inventors: Palani Balaya, Ananthanarayanan KRISHNAMOORTHY, Saravanan KUPPAN
  • Publication number: 20150132640
    Abstract: The present disclosure provides a phosphate framework electrode material for sodium ion battery and a method for synthesizing such electrode material. A surfactant and precursors including a sodium precursor, a phosphate precursor, a transition metal precursor are dissolved in a solvent and stirred for sufficient mixing and reaction. The precursors are reacted to yield a precipitate of particles of NaxAbMy(PO4)zXn compound and with the surfactant attached to the particles. The solvent is then removed and the remaining precipitate is sintered to crystallize the particles. During sintering, the surfactant is decomposed to form a carbon network between the crystallized particles and the crystallized particles and the carbon matrix are integrated to form the electrode material.
    Type: Application
    Filed: April 23, 2013
    Publication date: May 14, 2015
    Inventors: Palani Balaya, Saravanan Kuppan, Bing Liu, Chad William Mason
  • Patent number: 8968931
    Abstract: The present invention relates to the preparation of a mesoporous substantially pure anatase titanium oxide (meso-TiO2) and its use in electrochemical devices, in particular lithium-ion batteries.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: March 3, 2015
    Assignee: National University of Singapore
    Inventors: Palani Balaya, Ananthanarayanan Krishnamoorthy, Saravanan Kuppan
  • Publication number: 20130143123
    Abstract: Mesoporous particles each including LiFePO4 or Li3V2(PO4)3 crystallites and uniform coating of amorphous carbon on the surface of each of the crystallites. The crystallites have a size of 20-50 nm and the carbon coating has an average thickness of 2-7 nm. Also disclosed is a soft-template method of preparing the above-described mesoporous particles and the use of these mesoporous particles in lithium batteries.
    Type: Application
    Filed: August 19, 2011
    Publication date: June 6, 2013
    Applicant: National University of Singapore
    Inventors: Palani Balaya, Saravanan Kuppan, Hwang Sheng Lee, Ananthanarayanan Krishnamoorthy