Patents by Inventor lkiko SHIMANUKI

lkiko SHIMANUKI 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).

  • LITHIUM ION SECONDARY BATTERY
    Publication number: 20190393554
    Abstract: A purpose of one embodiment of the present invention is to provide a lithium ion secondary battery that has improved life-span characteristics. The first lithium ion secondary battery of the present invention comprises an electrolyte solution comprising a sulfone compound, a fluorinated ether compound and LiN(FSO2)2, and a negative electrode comprising a silicon material, wherein a content of LiN(FSO2)2 in the electrolyte solution is more than 5 weight % and 20 weight % or less.
    Type: Application
    Filed: November 30, 2017
    Publication date: December 26, 2019
    Applicant: NEC Corporation
    Inventors: Takehiro NOGUCHI, Takuya HASEGAWA, Daisuke KAWASAKI, lkiko SHIMANUKI