Patents by Inventor Baris Key

Baris Key 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).

  • Electrolyte compositions for stabilizing silicon electrodes in lithium batteries
    Patent number: 11145905
    Abstract: A lithium-ion electrochemical cell comprises a first electrode, a second electrode comprising elemental silicon, a microporous separator membrane between the first and second electrodes, and an electrolyte in contact with the electrodes and the membrane. The electrolyte comprises a lithium salt at a concentration in the range of about 0.1 M to about 5 M, and an additional metal salt at a concentration in the range of about 0.001 to about 5 M dissolved in an organic solvent. The additional metal salt comprises a metal cation that can form a lithium-silicon-metal Zintl phase; and the first electrode comprises metallic lithium or a cathode active material capable of donating and accepting lithium ions to and from the second electrode during electrochemical cycling. Electrolytes for use with silicon-containing electrodes also are described.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: October 12, 2021
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: John T. Vaughey, Binghong Han, Baris Key, Fulya Dogan Key, Chen Liao
  • ELECTROLYTE COMPOSITIONS FOR STABILIZING SILICON ELECTRODES IN LITHIUM BATTERIES
    Publication number: 20200321655
    Abstract: A lithium-ion electrochemical cell comprises a first electrode, a second electrode comprising elemental silicon, a microporous separator membrane between the first and second electrodes, and an electrolyte in contact with the electrodes and the membrane. The electrolyte comprises a lithium salt at a concentration in the range of about 0.1 M to about 5 M, and an additional metal salt at a concentration in the range of about 0.001 to about 5 M dissolved in an organic solvent. The additional metal salt comprises a metal cation that can form a lithium-silicon-metal Zintl phase; and the first electrode comprises metallic lithium or a cathode active material capable of donating and accepting lithium ions to and from the second electrode during electrochemical cycling. Electrolytes for use with silicon-containing electrodes also are described.
    Type: Application
    Filed: April 4, 2019
    Publication date: October 8, 2020
    Applicant: UCHICAGO ARGONNE, LLC
    Inventors: John T. VAUGHEY, Binghong HAN, Baris KEY, Fulya Dogan KEY, Chen LIAO
  • Halogen-free electrolytes for magnesium batteries
    Patent number: 10593996
    Abstract: An electrochemical cell includes a high voltage cathode configured to operate at 1.5 volts or greater, an anode including Mg0, and an electrolyte including an at least one organic solvent, at least one magnesium salt, and at least one additive agent including a Lewis base, wherein the electrolyte is halogen-free.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: March 17, 2020
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: John T. Vaughey, Niya Sa, Hao Wang, Baris Key
  • HALOGEN-FREE ELECTROLYTES FOR MAGNESIUM BATTERIES
    Publication number: 20190067743
    Abstract: An electrochemical cell includes a high voltage cathode configured to operate at 1.5 volts or greater, an anode including Mg0, and an electrolyte including an at least one organic solvent, at least one magnesium salt, and at least one additive agent including a Lewis base, wherein the electrolyte is halogen-free.
    Type: Application
    Filed: August 24, 2017
    Publication date: February 28, 2019
    Inventors: John T. Vaughey, Niya Sa, Hao Wang, Baris Key