Patents by Inventor Nina Kircheva

Nina Kircheva 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).

  • Method for monitoring a Li-ion battery and monitoring device for the implementation thereof
    Patent number: 9673650
    Abstract: Method for monitoring an electrochemical cell or a battery (1), in particular method for monitoring the first charging of an electrochemical cell or of a battery (1) of Li-ion type, comprising a step of acquiring data relating to acoustic emissions produced in the electrochemical cell or in the battery and, by using the data acquired, a step of detecting: the formation of a passivation film on an electrode of the electrochemical cell or of the battery; and/or the first storage of lithium in an electrode of the electrochemical cell or of the battery.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: June 6, 2017
    Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, UNIVERSITE JOSEPH FOURIER-GRENOBLE, INSTITUT POLYTECHNIQUE DE GRENOBLE
    Inventors: Sylvie Genies, David Brun-Buisson, Nina Kircheva, Pierre-Xavier Thivel
  • METHOD FOR MONITORING A LI-ION BATTERY AND MONITORING DEVICE FOR THE IMPLEMENTATION OF THIS METHOD
    Publication number: 20160245875
    Abstract: Method for determining the state of health of a battery, using a sensor of the acoustic activity of the battery, comprising the following steps: detection of at least one acoustic event by the sensor; determination of the value of at least one parameter for each acoustic signal detected in the course of the elementary cycle of use; calculation, for the elementary cycle of use, of a value of acoustic density according to a density calculation function taking into account said at least one parameter determined for each of the acoustic signals detected in the course of the cycle; calculation of a state of health value corresponding to said previously calculated acoustic density value, on the basis of a functional relation or a predetermined database, making it possible to know the state of health for a given acoustic density value.
    Type: Application
    Filed: September 30, 2014
    Publication date: August 25, 2016
    Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, UNIVERSITE GRENOBLE ALPES, INSTITUT POLYTECHNIQUE DE GRENOBLE
    Inventors: Nina Kircheva, Pierre-Xavier Thivel, Sylvie Genies, Mélanie Alias, Sothun Eric Hing
  • Method for Monitoring a Li-ion Battery and Monitoring Device for the Implementation Thereof
    Publication number: 20140159674
    Abstract: Method for monitoring an electrochemical cell or a battery (1), in particular method for monitoring the first charging of an electrochemical cell or of a battery (1) of Li-ion type, comprising a step of acquiring data relating to acoustic emissions produced in the electrochemical cell or in the battery and, by using the data acquired, a step of detecting: the formation of a passivation film on an electrode of the electrochemical cell or of the battery; and/or the first storage of lithium in an electrode of the electrochemical cell or of the battery.
    Type: Application
    Filed: April 27, 2012
    Publication date: June 12, 2014
    Applicants: Commissariat a L'energie Atomique et aux Energies Alternatives, Institut Polytechnique de Grenoble, Universite Joseph Fourier - Grenoble
    Inventors: Sylvie Genies, David Brun-Buisson, Nina Kircheva, Pierre-Xavier Thivel
  • Electrochemical cell with an electrolyte flow, comprising through-electrodes and production method
    Patent number: 8609267
    Abstract: An electrochemical cell comprises an inlet and an outlet for an electrolyte flow, and two unipolar electrodes. Each electrode comprises a structure with a network of through-passages, surrounded by a solid frame. The electrolyte enters via inlets, circulates via the passages of the electrodes, passes through the space between the electrodes and leaves via an outlet. The structure and the frame are based on carbon.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: December 17, 2013
    Assignee: Comissariat a l'Energie Atomique et aux Energies Alternatives
    Inventors: Angel Zhivkov Kirchev, Nina Kircheva
  • Acid-lead battery electrode comprising a network of pores passing therethrough, and production method
    Patent number: 8173300
    Abstract: A structure including a network of parallel, homogeneous pores extending through the structure, and an outer frame around the lateral faces of the structure. The structure and the frame are made of carbon. The electrode is covered by a layer based on lead. The pores are filled with an active material based on lead.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: May 8, 2012
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Angel Zhivkov Kirchev, Nina Kircheva
  • ACID-LEAD BATTERY ELECTRODE COMPRISING A NETWORK OF PORES PASSING THERETHROUGH, AND PRODUCTION METHOD
    Publication number: 20120003543
    Abstract: A structure including a network of parallel, homogeneous pores extending through the structure, and an outer frame around the lateral faces of the structure. The structure and the frame are made of carbon. The electrode is covered by a layer based on lead. The pores are filled with an active material based on lead.
    Type: Application
    Filed: March 23, 2010
    Publication date: January 5, 2012
    Applicant: Commissariat A L'Energie Atomique Et Aux Energies Alternatives
    Inventors: Angel Zhivkov Kirchev, Nina Kircheva
  • ELECTROCHEMICAL CELL WITH AN ELECTROLYTE FLOW, COMPRISING THROUGH-ELECTRODES AND PRODUCTION METHOD
    Publication number: 20110318617
    Abstract: An electrochemical cell comprises an inlet and an outlet for an electrolyte flow, and two unipolar electrodes. Each electrode comprises a structure with a network of through-passages, surrounded by a solid frame. The electrolyte enters via inlets, circulates via the passages of the electrodes, passes through the space between the electrodes and leaves via an outlet. The structure and the frame are based on carbon.
    Type: Application
    Filed: March 23, 2010
    Publication date: December 29, 2011
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Angel Zhivkov Kirchev, Nina Kircheva