Patents Examined by Cyntiha Lee
  • Lithium secondary battery and a method for preparing the same
    Patent number: 7678504
    Abstract: A lithium secondary battery of the present invention comprises a positive electrode; a negative electrode; a separator interposed between the positive and negative electrodes; and an electrolyte on the separator, wherein the electrolyte includes a non-aqueous organic solvent, a lithium salt, and a linear polymer having P?O bonds. The electrolyte improves the swelling characteristics of lithium secondary batteries. A lithium secondary battery with the electrolyte and a method for preparing the electrolyte and battery is described.
    Type: Grant
    Filed: July 14, 2003
    Date of Patent: March 16, 2010
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jin-Young Lee, Kyoung-Hee Lee