Patents by Inventor Euihwang Song

Euihwang Song 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 FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY INCLUDING THE SAME
    Publication number: 20100028785
    Abstract: An electrolyte for a lithium ion secondary battery is provided. The electrolyte includes a non-aqueous organic solvent, a lithium salt, an ionic liquid and an additive. The additive has a lowest unoccupied molecular orbital (LUMO) level of ?0.5 to 1.0 eV and a highest occupied molecular orbital (HOMO) level lower than ?11.0 eV. Further provided is a lithium ion secondary battery including the electrolyte. The battery is advantageous in terms of overcharge safety and heat stability. In addition, the battery has improved high-efficiency properties and cycle life characteristics.
    Type: Application
    Filed: July 24, 2009
    Publication date: February 4, 2010
    Inventors: Namsoon Choi, Irina Profatilova, Sohyun Hur, Euihwang Song, Sungsoo Kim