Patents by Inventor Christine Jarvis

Christine Jarvis 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: 10944109
    Abstract: A Li/CFx primary battery having a lithium-based anode and a fluorinated carbon cathode. The fluorinated carbon cathode includes fluorinated carbon nanoparticles. The structure and size distribution of the carbon precursor carbon nanotubes are configured to provide improved battery performance. The fluorinated carbon nanoparticles can be formed by fluorinating carbon nanoparticles using a fluorine-based reactive gas at a temperature in the range from 300 to 600° C., and the fluorinated carbon nanoparticles can further be used to form the cathode of the primary battery. Producing the Li/CFx primary batter can also include heating the fluorinated carbon nanoparticles under an inert atmosphere before the fluorinated carbon nanoparticles are used to form the cathode of the primary battery.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: March 9, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Hanpu Liang, Nathan Lawrence, Timothy Jones, Steven Gahlings, Christine Jarvis, Wen Rong Li, Rogerio Tadeu Ramos, Vladimir Hernandez Solis
  • Publication number: 20190267626
    Abstract: A Li/CFx primary battery having a lithium-based anode and a fluorinated carbon cathode. The fluorinated carbon cathode includes fluorinated carbon nanoparticles. The structure and size distribution of the carbon precursor carbon nanotubes are configured to provide improved battery performance. The fluorinated carbon nanoparticles can be formed by fluorinating carbon nanoparticles using a fluorine-based reactive gas at a temperature in the range from 300 to 600° C., and the fluorinated carbon nanoparticles can further be used to form the cathode of the primary battery. Producing the Li/CFx primary batter can also include heating the fluorinated carbon nanoparticles under an inert atmosphere before the fluorinated carbon nanoparticles are used to form the cathode of the primary battery.
    Type: Application
    Filed: May 10, 2019
    Publication date: August 29, 2019
    Inventors: Hanpu Liang, Nathan Lawrence, Timothy Jones, Steven Gahlings, Christine Jarvis, Wen Rong Li, Rogerio Tadeu Ramos, Vladimir Hernandez Solis
  • Publication number: 20160133932
    Abstract: A Li/CFx primary battery having a lithium-based anode and a fluorinated carbon cathode. The fluorinated carbon cathode includes fluorinated carbon nanoparticles. The structure and size distribution of the carbon precursor carbon nanotubes are configured to provide improved battery performance.
    Type: Application
    Filed: November 6, 2015
    Publication date: May 12, 2016
    Inventors: Hanpu Liang, Nathan Lawrence, Timothy Jones, Steven Gahlings, Christine Jarvis, Wen Rong Li, Rogerio Tadeu Ramos, Vladimir Hernandez Solis
  • Publication number: 20160087271
    Abstract: A battery for oilfield applications which may include: a housing and an electrolytic cell disposed in the housing. The electrolytic cell may include: a cathode, an anode, and a polymeric separator disposed between the cathode and anode. The cathode may include a cathode composite material coated on a substrate. The cathode composite material may include: a polymeric continuous phase; an active material; a carbon source; and; a first lithium salt. The anode may comprise lithium. The polymeric separator may include: a first polymer crosslinked by a photoinitiator; and a second lithium salt.
    Type: Application
    Filed: September 24, 2014
    Publication date: March 24, 2016
    Inventors: Christine Jarvis, David Teagle, Wendy Fraser, Susan Gilmore, Alex Bracken, David Betteridge, Norman Ward, Wenlin Zhang, Richard Frerker
  • Publication number: 20060191794
    Abstract: A secondary lithium cell in which the anode is made by first taking an electrode comprising a material which undergoes a structural change when it is first charged and discharged such as a layer of tin, assembling a cell comprising the said anode, a cathode containing lithium ions, and an electrolyte containing lithium ions, passing an electric current through the cell so as to insert lithium ions into the material e.g. tin and so charge the cell, and then discharging the cell. This cell is then dismantled, and the anode removed and any electrolyte washed off. The layer of tin or other material is then coated with a layer comprising a polymeric material. This coated and pre-cycled electrode can then be used as an anode in a secondary lithium cell. The polymeric coating, which may be a microporous polymer, a plasticised polymer, as gel polymer, or a polymeric electrolyte, for example based on polyvinylidene fluoride, suppresses the deterioration in cell performance on subsequent cycling.
    Type: Application
    Filed: January 16, 2004
    Publication date: August 31, 2006
    Inventor: Christine Jarvis
  • Publication number: 20060141364
    Abstract: An electrolyte for use in a lithium ion cell that has a tin anode, the electrolyte comprising vinyl ethylene carbonate.
    Type: Application
    Filed: January 16, 2004
    Publication date: June 29, 2006
    Inventor: Christine Jarvis
  • Publication number: 20050130043
    Abstract: Electrodes, such as anodes and cathodes, can include a host material that is prelithiated or undergoes lithiation upon electrolyte introduction into a battery. Lithiation of the host material can occur by the agitation of lithium metal and a host material, the agitation of a lithium metal powder and a host material at a temperature greater than room temperature, the application of pressure to a lithium metal and host material mixture, contact of the host material with molten lithium metal, the lamination of lithium foil or lithium mesh onto an electrode containing the host material, or by lamination of lithium metal or mesh onto an electrode at elevated temperatures.
    Type: Application
    Filed: July 28, 2004
    Publication date: June 16, 2005
    Inventors: Yuan Gao, Marina Yakovleva, John Engel, Christine Jarvis, Michael Lain