Patents Assigned to Lithdyne International
  • Non-aqueous electrolyte
    Patent number: 8128833
    Abstract: The present invention provides electrolytes for use in electronic devices which contain imidazolium salts in combination with high boiling aprotic solvents having lower flammability and lower toxicity than acetonitrile electrolytes.
    Type: Grant
    Filed: June 19, 2006
    Date of Patent: March 6, 2012
    Assignee: Lithdyne International
    Inventors: W. Novis Smith, Joel R. McCloskey
  • Non-aqueous electrolytes for electrical storage devices
    Patent number: 6902684
    Abstract: A non-aqueous electrolyte for electric storage devices consisting of a nitrile solvent and a complex salt formed by the reaction of a tetraalkyl ammonium salt and hydrogen fluoride. The electrolyte may include a component which a cation of an imidazolium or quaternary tetraalkylammonium salt.
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: June 7, 2005
    Assignee: Lithdyne International
    Inventors: W. Novis Smith, Joel McCloskey
  • Non-aqueous electrolyte
    Patent number: 6728096
    Abstract: A non-aqueous electrolyte for use in batteries and electrical capacitors for use at low temperatures. The electrolyte consists of at least two electrolyte salts in an electrochemical solvent or at least one electrolyte salt in a mixture of electrochemical solvents.
    Type: Grant
    Filed: April 2, 2003
    Date of Patent: April 27, 2004
    Assignee: Lithdyne International
    Inventors: W. Novis Smith, Joel McCloskey
  • Preparation of arsenic pentafluoride
    Patent number: 6635231
    Abstract: A process for the preparation of high purity arsenic pentafluoride in high yield. The process uses sulfur trioxide or oleum and an excess of hydrogen fluoride to react arsenic acid or arsenic pentoxide in a reaction medium containing an excess of hydrogen fluoride to yield high purity arsenic pentafluoride as a gas.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: October 21, 2003
    Assignee: Lithdyne International
    Inventors: W. Novis Smith, Joel McCloskey
  • Polycarbonate oligomers and polymers for use in electrolytes
    Patent number: 6602976
    Abstract: There is provided novel polycarbonate polymers and oligomers for use as electrolytes in electrochemical devices having a higher content of organic carbonates so as to enhance electrical conductivity. The polymers are prepared by a condensation reaction or by ester exchange.
    Type: Grant
    Filed: May 5, 2001
    Date of Patent: August 5, 2003
    Assignee: Lithdyne International
    Inventors: W. Novis Smith, Joel McCloskey
  • Non-aqueous electrolyte
    Patent number: 6535373
    Abstract: A non-aqueous electrolyte for use in batteries and electrical capacitors for use at low temperatures. The electrolyte consists of at least two quaternary ammonium salts in a nitrile solvent.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: March 18, 2003
    Assignee: Lithdyne International
    Inventors: W. Novis Smith, Joel McCloskey