Patents by Inventor Cewen Nan

Cewen Nan 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 battery and method for preparing the same
    Patent number: 10756386
    Abstract: The present invention provides a lithium ion battery including a lithium ion battery body. The lithium ion battery body includes a positive electrode sheet, a separator, a cushion rubber and a solid-state negative electrode sheet. The positive electrode sheet and the solid-state negative electrode sheet are provided at upper and lower surfaces of the separator. The cushion rubber is located in the positive electrode sheet and the separator. The present invention further provides a method for preparing a lithium ion battery including the preparation of the positive electrode sheet, the preparation of the solid-state negative electrode sheet and the preparation of the cushion rubber.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: August 25, 2020
    Assignee: QINGTAO (KUNSHAN) ENERGY DEVELOPMENT CO., LTD.
    Inventors: Yuchuan Feng, Zheng Li, Hongcai He, Jingliang Liu, Weiqiang Xiong, Fan Yang, Cewen Nan
  • LITHIUM ION BATTERY AND METHOD FOR PREPARING THE SAME
    Publication number: 20190190059
    Abstract: The present invention provides a lithium ion battery including a lithium ion battery body. The lithium ion battery body includes a positive electrode sheet, a separator, a cushion rubber and a solid-state negative electrode sheet. The positive electrode sheet and the solid-state negative electrode sheet are provided at upper and lower surfaces of the separator. The cushion rubber is located in the positive electrode sheet and the separator. The present invention further provides a method for preparing a lithium ion battery including the preparation of the positive electrode sheet, the preparation of the solid-state negative electrode sheet and the preparation of the cushion rubber.
    Type: Application
    Filed: October 12, 2018
    Publication date: June 20, 2019
    Inventors: Yuchuan Feng, Zheng Li, Hongcai He, Jingliang Liu, Weiqiang Xiong, Fan Yang, Cewen Nan
  • Li-La-Ti-O composite solid electrolyte material containing silicon and synthesizing method thereof
    Patent number: 8748044
    Abstract: The invention relates to a lithium lanthanum titanate composite solid electrolyte material containing silicon in which amorphous Si or an amorphous Si compound exist in a grain boundary between crystal grains, and a method of producing the same, and belongs to a field of a lithium ion battery. According to the invention, the amorphous Si or the amorphous Si compound exist in the grain boundary between the crystal grains of the lithium lanthanum titanate. The amorphous Si or the amorphous Si compound are introduced into the grain boundary by employing a wet chemical method. In the wet chemical method, the inexpensive organosilicon compound is used as an additive, and the organosilicon compound is added into the lithium lanthanum titanate solid electrolyte material.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: June 10, 2014
    Assignees: Toyota Jidosha Kabushiki Kaisha, Tsinghua University
    Inventors: Cewen Nan, Ao Mei, Yuchuan Feng, Lin Yuanhua, Yoshitaka Minamida, Shoji Yokoishi
  • LI-LA-TI-O COMPOSITE SOLID ELECTROLYTE MATERIAL CONTAINING SILICON AND SYNTHESIZING METHOD THEREOF
    Publication number: 20110059369
    Abstract: The invention relates to a lithium lanthanum titanate composite solid electrolyte material containing silicon in which amorphous Si or an amorphous Si compound exist in a grain boundary between crystal grains, and a method of producing the same, and belongs to a field of a lithium ion battery. According to the invention, the amorphous Si or the amorphous Si compound exist in the grain boundary between the crystal grains of the lithium lanthanum titanate. The amorphous Si or the amorphous Si compound are introduced into the grain boundary by employing a wet chemical method. In the wet chemical method, the inexpensive organosilicon compound is used as an additive, and the organosilicon compound is added into the lithium lanthanum titanate solid electrolyte material.
    Type: Application
    Filed: July 24, 2009
    Publication date: March 10, 2011
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, TSINGHUA UNIVERSITY
    Inventors: Cewen Nan, Ao Mei, Yuchuan Feng, Lin Yuanhua, Yoshitaka Minamida, Shoji Yokoishi