Patents by Inventor Dong-min Im

Dong-min Im 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).

  • Cathode active material for lithium rechargeable battery and lithium rechargeable battery using the same
    Publication number: 20050158625
    Abstract: A cathode active material for a lithium rechargeable battery is provided. The cathode active material is used for a lithium rechargeable battery containing a cathode, an anode, and an electrolytic solution. The cathode active material is composed of 0.5% by weight or less carbonate ion (CO32?) plus bicarbonate ion (HCO3?) and 0.1% by weight or less hydroxyl ion (OH?). The swelling of lithium battery containing the cathode active material is substantially suppressed when is placed at 60° C. or more.
    Type: Application
    Filed: January 19, 2005
    Publication date: July 21, 2005
    Inventors: Dong-Min Im, Young-Min Choi, Gue-Sung Kim, Hyo-Sug Lee, Jung-Joon Park