Patents by Inventor Kyoo-Yoon Shim

Kyoo-Yoon Shim 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).

  • Rechargeable lithium battery
    Patent number: 6521380
    Abstract: A rechargeable lithium battery includes a negative electrode with a graphite-based active material with boron as a donor and a positive electrode with a transition metal oxide-based active material. A separator is interposed between the negative and positive electrodes. The positive and negative electrodes and the separator are all saturated with an electrolyte. The electrolyte contains cyclic carbonate and chain carbonate at a ratio of 51:49 by volume percent.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: February 18, 2003
    Assignee: Samsung Display Devices Co., Ltd.
    Inventors: Jae-Yul Ryu, Sang-Young Yoon, Wan-Uk Choi, Kyoo-Yoon Shim, Sang-Jim Kim