Patents by Inventor Kejun ZHAN

Kejun ZHAN 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).

  • Separator and lithium-ion secondary battery
    Patent number: 9711773
    Abstract: The present disclosure provides a separator and a lithium-ion secondary battery. The separator comprises: a microporous membrane having micropores; and a coating provided on a surface of the microporous membrane. The coating comprises polymer particles and binder particles. The polymer particle is a hollow shell structure which comprises a shell and a cavity positioned in the shell, an outer surface of the shell is distributed with nanopores which are communicated with the cavity, a particle diameter of the polymer particle is larger than a pore size of the micropore of the microporous membrane; a particle diameter of the binder particle is larger than the pore size of the micropore of the microporous membrane. The lithium-ion secondary battery comprises: a positive electrode plate; a negative electrode plate; the aforementioned separator interposed between the positive electrode plate and the negative electrode plate; and an electrolyte.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: July 18, 2017
    Assignee: DONGGUAN AMPEREX TECHNOLOGY LIMITED
    Inventors: Xulun Lai, Hui Jiang, Jianrui Yang, Kejun Zhan, Lei Niu
  • Separator And Lithium-Ion Secondary Battery
    Publication number: 20150333309
    Abstract: The present disclosure provides a separator and a lithium-ion secondary battery. The separator comprises: a microporous membrane having micropores; and a coating provided on a surface of the microporous membrane. The coating comprises polymer particles and binder particles. The polymer particle is a hollow shell structure which comprises a shell and a cavity positioned in the shell, an outer surface of the shell is distributed with nanopores which are communicated with the cavity, a particle diameter of the polymer particle is larger than a pore size of the micropore of the microporous membrane; a particle diameter of the binder particle is larger than the pore size of the micropore of the microporous membrane. The lithium-ion secondary battery comprises: a positive electrode plate; a negative electrode plate; the aforementioned separator interposed between the positive electrode plate and the negative electrode plate; and an electrolyte.
    Type: Application
    Filed: December 29, 2014
    Publication date: November 19, 2015
    Inventors: Xulun LAI, Hui JIANG, Jianrui YANG, Kejun ZHAN, Lei NIU