Patents by Inventor Badri Narayan Ramamurthi
Badri Narayan Ramamurthi 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: 9028998Abstract: The battery cell design includes a battery cell component comprises a current conducting element, that includes at least a portion that is hollow, further component is configured to be located within a battery cell. Another embodiment of the component comprises a first element that defines a first fluid path therein; and a second element that defines a second fluid path, wherein the two fluid paths are in communication with each other, further wherein the battery cell component is configured to conduct electric current. A battery cell and battery cell assembly that uses the component, and a method of cooling a battery assembly is also disclosed. The present invention has been described in terms of specific embodiment(s), and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appending claims.Type: GrantFiled: February 14, 2013Date of Patent: May 12, 2015Assignee: General Electric CompanyInventors: Badri Narayan Ramamurthi, Satoshi Atsuchi, Andrey I. Meshkov, Mohamed Rahmane, Svetlana Selezneva
-
Patent number: 8816635Abstract: An electrochemical cell includes an anode connectable to a current tap and a charging medium in electrical contact with the anode. A switching device is configured to stop a charging operation of the electrochemical cell upon activation by the charging medium.Type: GrantFiled: September 30, 2011Date of Patent: August 26, 2014Assignee: General Electric CompanyInventors: Chandra Sekher Yerramalli, Badri Narayan Ramamurthi, Reza Sarrafi-Nour, Andrew Philip Shapiro, Anil Raj Duggal
-
Publication number: 20140186691Abstract: The present application provides for ceramic collars and metal rings for active brazing in sodium-based thermal batteries. The ceramic collar may be an alpha-alumina collar configured for active brazing, and thereby sealing, to outer and inner Ni rings for use in NaMx cells. The portions of the alpha-alumina collar active brazed to the outer and inner Ni rings may be outwardly facing and include inwardly extending recesses. The portions of the outer and inner Ni rings active brazed to the outwardly facing portions of the collar may be inwardly facing. The alpha-alumina collar may include a greater coefficient of thermal expansion than each of the outer and inner Ni rings, and the alpha-alumina collar and outer and inner Ni rings may be configured such that a portion of the outer and inner Ni rings is deformed into the inwardly extending recesses of the alpha-alumina collar after active brazing thereof.Type: ApplicationFiled: December 28, 2012Publication date: July 3, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Michael Colan MOSCINSKI, Reza SARRAFI-NOUR, Badri Narayan RAMAMURTHI, Mohandas NAYAK, Darren Michael STOHR, Sundeep KUMAR, Mohamed RAHMANE, Arunabh BASAK, Raghavendra Rao ADHARAPURAPU
-
Publication number: 20140186690Abstract: The present application provides for metal rings and ceramic collars for active brazing in sodium-based thermal batteries. The metal rings may be outer and inner Ni rings configured for sealing to an alpha-alumina collar via active brazing for use in NaMx cells. The inner and outer Ni metal rings may be sealed to differing portions of the alpha-alumina collar. The portions of the outer and inner Ni rings active brazed to the alpha-alumina collar may define a tapered thickness that reduces internal stresses at the active brazed joints resulting from differing coefficients of thermal expansion between the Ni metal rings and the alpha-alumina collar. The portions of the outer and inner Ni rings and alpha-alumina collar sealed by active brazing, and thereby the active braze joints themselves, may be oriented to control or dictate the stresses on the joints during use.Type: ApplicationFiled: December 28, 2012Publication date: July 3, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Michael Colan MOSCINSKI, Badri Narayan RAMAMURTHI, Sundeep KUMAR, Mohamed RAHMANE
-
Patent number: 8652689Abstract: An energy storage device includes a housing having an interior surface defining a volume and a plurality of solid electrolyte elements disposed in the volume. Each solid electrolyte element has a first surface that defines at least a portion of a first, cathodic chamber, and a second surface that defines a second, anodic chamber. A plurality of individual anodic chambers are thus provided, at least one of which is evacuated below atmospheric pressure. A majority of anodic chambers can be spaced from one another in a manner that provides a substantially uniform reaction rate throughout the cathodic chamber.Type: GrantFiled: February 24, 2010Date of Patent: February 18, 2014Assignee: General Electric CompanyInventors: Chandra Sekher Yerramalli, Anil Raj Duggal, Andrew Philip Shapiro, Mohamed Rahmane, Reza Sarrafi-Nour, Gregory John Parker, Alireza Namazifard, Badri Narayan Ramamurthi
-
Patent number: 8647767Abstract: An energy storage device includes a housing having an interior surface defining a volume and a plurality of solid electrolyte elements disposed in the volume. Each solid electrolyte element has a first surface that defines at least a portion of a first, cathodic chamber, and a second surface that defines a second, anodic chamber. A plurality of individual anode chambers are thus provided, a majority of which are in ionic communication with the cathode chamber through a majority of the solid electrolyte elements and which are also provided with a sodium level control mechanism.Type: GrantFiled: March 23, 2010Date of Patent: February 11, 2014Assignee: General Electric CompanyInventors: Reza Sarrafi-Nour, Andrew Shapiro, Chandra Sekher Yerramalli, Badri Narayan Ramamurthi
-
Patent number: 8617762Abstract: A method of processing a ceramic electrolyte suitable for use in a fuel cell is provided. The method comprises situating a ceramic electrolyte layer over an anode layer; and subjecting the ceramic electrolyte layer to a stress prior to operation of the fuel cell, by: exposing the top surface of the electrolyte layer to an oxidizing atmosphere and the bottom surface of the electrolyte layer to a reducing atmosphere; and heating the electrolyte layer. The stress causes a substantial increase in the number of microcracks, or in the average size of the microcracks, or in both the number of the microcracks and their average size. A solid oxide fuel cell comprising a ceramic electrolyte layer processed by the disclosed method is also provided.Type: GrantFiled: September 28, 2007Date of Patent: December 31, 2013Assignee: General Electric CompanyInventors: Shu Ching Quek, Chandra Sekher Yerramalli, Todd-Michael Striker, Badri Narayan Ramamurthi, Sylvia Marie DeCarr, Venkat Subramaniam Venkataramani
-
Publication number: 20130084486Abstract: An electrochemical cell includes an outer housing, a separator for separating an anode material from a cathode material, wherein the separator is disposed in the outer housing. The electrochemical cell also includes a conductive thin sheet disposed around an outer circumference of the separator, wherein the conductive thin sheet is disposed such that it allows passage of the anode material between the separator and the conductive thin sheet. The electrochemical cell further includes a conductive matrix disposed between, and in contact with, the conductive thin sheet and the outer housing.Type: ApplicationFiled: September 30, 2011Publication date: April 4, 2013Inventors: Mohamed Rahmane, Chandra Sekher Yerramalli, Badri Narayan Ramamurthi, Andrey Meshkov, Richard Louis Hart, Michael Alan Vallance, David Charles Bogdan, JR.
-
Publication number: 20130082642Abstract: An electrochemical cell includes an anode connectable to a current tap and a charging medium in electrical contact with the anode. A switching device is configured to stop a charging operation of the electrochemical cell upon activation by the charging medium.Type: ApplicationFiled: September 30, 2011Publication date: April 4, 2013Inventors: Chandra Sekher Yerramalli, Badri Narayan Ramamurthi, Reza Sarrafi-Nour, Andrew Philip Shapiro, Anil Raj Duggal
-
Publication number: 20120301768Abstract: The battery cell design includes a battery cell component comprises a current conducting element, that includes at least a portion that is hollow, further component is configured to be located within a battery cell. Another embodiment of the component comprises a first element that defines a first fluid path therein; and a second element that defines a second fluid path, wherein the two fluid paths are in communication with each other, further wherein the battery cell component is configured to conduct electric current. A battery cell and battery cell assembly that uses the component, and a method of cooling a battery assembly is also disclosed. The present invention has been described in terms of specific embodiment(s), and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appending claims.Type: ApplicationFiled: May 27, 2011Publication date: November 29, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Badri Narayan Ramamurthi, Satoshi Atsuchi, Andrey Meshkov, Mohamed Rahmane, Svetlana Selezneva
-
Publication number: 20120178015Abstract: A method of processing a ceramic electrolyte suitable for use in a fuel cell is provided. The method comprises situating a ceramic electrolyte layer over an anode layer; and subjecting the ceramic electrolyte layer to a stress prior to operation of the fuel cell, by: exposing the top surface of the electrolyte layer to an oxidizing atmosphere and the bottom surface of the electrolyte layer to a reducing atmosphere; and heating the electrolyte layer. The stress causes a substantial increase in the number of microcracks, or in the average size of the microcracks, or in both the number of the microcracks and their average size. A solid oxide fuel cell comprising a ceramic electrolyte layer processed by the disclosed method is also provided.Type: ApplicationFiled: September 28, 2007Publication date: July 12, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Shu Ching Quek, Chandra Sekher Yerramalli, Todd-Michael Striker, Badri Narayan Ramamurthi, Sylvia Marie DeCarr, Venkat Subramaniam Venkataramani
-
Publication number: 20110236749Abstract: An energy storage device includes a housing having an interior surface defining a volume and a plurality of solid electrolyte elements disposed in the volume. Each solid electrolyte element has a first surface that defines at least a portion of a first, cathodic chamber, and a second surface that defines a second, anodic chamber. A plurality of individual anode chambers are thus provided, a majority of which are in ionic communication with the cathode chamber through a majority of the solid electrolyte elements and which are also provided with a sodium level control mechanism.Type: ApplicationFiled: March 23, 2010Publication date: September 29, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Reza Sarrafi-Nour, Andrew Shapiro, Chandra Sekher Yerramalli, Badri Narayan Ramamurthi
-
Publication number: 20110206984Abstract: A pre-sealed anode tube assembly for a sodium-metal-halide energy storage device includes an anode tube and a feed-through current collector assembly at least partially sealed within the anode tube. The pre-sealed anode tube assembly can be independently transported prior to being integrated with a desired sodium-metal-halide energy storage device.Type: ApplicationFiled: February 25, 2010Publication date: August 25, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Chandra Sekher Yerramalli, Anil Raj Duggal, Andrew Philip Shapiro, Mohamed Rahmane, Reza Sarrafi-Nour, Gregory John Parker, Alireza Namazifard, Badri Narayan Ramamurthi, James Lowe Sudworth, Sylvia Marie DeCarr
-
Publication number: 20110206980Abstract: An energy storage device includes a housing having an interior surface defining a volume and a plurality of solid electrolyte elements disposed in the volume. Each solid electrolyte element has a first surface that defines at least a portion of a first, cathodic chamber, and a second surface that defines a second, anodic chamber. A plurality of individual anodic chambers are thus provided, at least one of which is evacuated below atmospheric pressure. A majority of anodic chambers can be spaced from one another in a manner that provides a substantially uniform reaction rate throughout the cathodic chamber.Type: ApplicationFiled: February 24, 2010Publication date: August 25, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Chandra Sekher Yerramalli, Anil Raj Duggal, Andrew Philip Shapiro, Mohamed Rahmane, Reza Sarrafi-Nour, Gregory John Parker, Alireza Namazifard, Badri Narayan Ramamurthi