Patents by Inventor Olt E. Geiculescu

Olt E. Geiculescu 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).

  • Lithium ion battery electrolyte including a vitreous eutectic mixture
    Patent number: 8802301
    Abstract: An electrolyte for a lithium ion battery includes a vitreous eutectic mixture represented by the formula AxBy, where A is a salt chosen from a lithium fluoroalkylsulfonimide or a lithium fluoroarylsulfonimide, B is a solvent chosen from an alkylsulfonamide or an arylsulfonamide, and x and y are the mole fractions of A and B, respectively.
    Type: Grant
    Filed: October 11, 2010
    Date of Patent: August 12, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Ion C. Halalay, Damon R. Frisch, Olt E. Geiculescu, Darryl D Desmarteau, Stephen E Creager, Changqing Lu
  • Lithium salts of fluorinated borate esters for lithium-ion batteries
    Patent number: 8394539
    Abstract: Lithium salts with fluorinated chelated orthoborate anions are prepared and used as electrolytes or electrolyte additives in lithium-ion batteries. The lithium salts have two chelate rings formed by the coordination of two bidentate ligands to a single boron atom. In addition, each chelate ring has two oxygen atoms bonded to one boron atom, methylene groups bonded to the two oxygen atoms, and one or more fluorinated carbon atoms bonded to and forming a cyclic bridge between the methylene groups.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: March 12, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Olt E. Geiculescu, Ion C. Halalay, Darryl D. Desmarteau, Stephen E. Creager
  • LITHIUM SALTS OF FLUORINATED BORATE ESTERS FOR LITHIUM-ION BATTERIES
    Publication number: 20120328938
    Abstract: Lithium salts with fluorinated chelated orthoborate anions are prepared and used as electrolytes or electrolyte additives in lithium-ion batteries. The lithium salts have two chelate rings formed by the coordination of two bidentate ligands to a single boron atom. In addition, each chelate ring has two oxygen atoms bonded to one boron atom, methylene groups bonded to the two oxygen atoms, and one or more fluorinated carbon atoms bonded to and forming a cyclic bridge between the methylene groups.
    Type: Application
    Filed: June 21, 2012
    Publication date: December 27, 2012
    Applicants: Clemson University, GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Olt E. Geiculescu, Ion C. Halalay, Darryl D. Desmarteau, Stephen E. Creager
  • ELECTROLYTE FOR A LITHIUM ION BATTERY
    Publication number: 20110111308
    Abstract: An electrolyte for a lithium ion battery includes a vitreous eutectic mixture represented by the formula AxBy, where A is a salt chosen from a lithium fluoroalkylsulfonimide or a lithium fluoroarylsulfonimide, B is a solvent chosen from an alkylsulfonamide or an arylsulfonamide, and x and y are the mole fractions of A and B, respectively.
    Type: Application
    Filed: October 11, 2010
    Publication date: May 12, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Ion C. Halalay, Damon R. Frisch, Olt E. Geiculescu, Darryl D. Desmarteau, Stephen E. Creager, Changqing Lu