Patents by Inventor Bobing HU

Bobing HU 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).

  • Publication number: 20220123353
    Abstract: The solid electrolyte membrane in this application has a first surface and a second surface opposite the first surface, where the first surface is provided with several micropores that extend into an interior of the solid electrolyte membrane without penetrating to the second surface. This application further provides a solid-state lithium metal battery, battery module, battery pack, and apparatus containing such solid electrolyte membrane. In the solid electrolyte membrane provided in this application, the micropores provided on the first surface of the solid electrolyte membrane do not penetrate to the opposite second surface, so that lithium ions can be induced to deposit in the micropores. This reduces the risk of lithium dendrites growing or even penetrating through the solid electrolyte membrane due to non-uniform deposition of lithium ions at other locations, thereby preventing short circuit of a solid-state lithium metal battery.
    Type: Application
    Filed: December 29, 2021
    Publication date: April 21, 2022
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Jiawei FU, Chengyong LIU, Bobing HU, Qian LI, Meng CHENG, Yongsheng GUO
  • Publication number: 20220115666
    Abstract: This application provides a negative electrode plate, a lithium metal battery, and an apparatus including the lithium metal battery. The negative electrode plate includes a negative electrode current collector and a lithium-metal negative electrode disposed on at least one surface of the negative electrode current collector, where a polymer protective film is disposed on a surface of the lithium-metal negative electrode away from the negative electrode current collector, the polymer protective film includes a citric acid copolymer, and a number-average molecular weight Mn of the citric acid copolymer is 10,000 to 1,000,000. In this application, a polymer protective film with high tensile strength, high puncture strength, high elongation, and high electrolyte holding capacity may be formed on the surface of the lithium-metal negative electrode in the negative electrode plate.
    Type: Application
    Filed: December 22, 2021
    Publication date: April 14, 2022
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Qian LI, Meng CHENG, Chengyong LIU, Bobing HU, Jiawei FU, Shengyuan HUANG, Yongsheng GUO
  • Publication number: 20220109180
    Abstract: The present application discloses a lithium metal battery, a process for preparing the same, an apparatus containing the lithium metal battery, and a negative electrode plate. The lithium metal battery includes a positive electrode plate, a negative electrode plate and an electrolyte, the positive electrode plate including a positive electrode current collector and a positive electrode active material layer arranged on at least one surface of the positive electrode current collector and comprising a positive electrode active material, wherein the negative electrode plate includes a polymer material base layer; and a lithium-based metal layer that is directly bonded to at least one surface of the polymer material base layer.
    Type: Application
    Filed: December 17, 2021
    Publication date: April 7, 2022
    Applicant: Contemporary Amperex Technology Co., Limited
    Inventors: Qian LI, Chengyong Liu, Yongshen Guo, Jiawei Fu, Bobing Hu, Meng Cheng
  • Publication number: 20220069355
    Abstract: This application provides a lithium metal battery, and relates to the battery field. The lithium metal battery includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and an electrolytic solution infiltrating the separator. The negative electrode includes a negative electrode current collector and a lithium-aluminum alloy layer disposed on at least one surface of the negative electrode current collector; and the electrolytic solution includes an electrolyte and a solvent, where the solvent contains a film-forming agent, and the film-forming agent is FEC and/or DFEC.
    Type: Application
    Filed: November 8, 2021
    Publication date: March 3, 2022
    Inventors: Meng CHENG, Chengyong LIU, Bobing HU, Yongsheng GUO, Jiawei FU, Qian LI, Chengdu LIANG
  • Publication number: 20220045358
    Abstract: The present application discloses a sulfide solid electrolyte and a method for the preparation thereof, an all solid state lithium secondary battery, and an apparatus containing the all solid state lithium secondary battery. The sulfide solid electrolyte is obtained by compounding at least Li2S, P2S5 and a dopant MxS2O3, wherein M is one or more selected from Na, K, Ba and Ca, and 1?x?2.
    Type: Application
    Filed: October 25, 2021
    Publication date: February 10, 2022
    Applicant: Contemporary Amperex Technology Co., Limited
    Inventors: Chengdu LIANG, Jiawei FU, Chengyong LIU, Yongsheng GUO, Bobing HU
  • Patent number: 11217822
    Abstract: The present application provides a preparation method for a solid electrolyte, including: acquiring an initial reaction mixture including a lithium precursor, a central atom ligand and an organic solvent; acquiring a modified solution including a borate ester and the organic solvent; mixing the initial reaction mixture and the modified solution, and drying to acquire an initial product; performing a grinding, cold press and heat treatment to the initial product to obtain the solid electrolyte. In the preparation method provided by the present application, a B and O co-doped sulphide solid electrolyte can be obtained by modifying the sulphide solid electrolyte with the borate ester as a doping raw material. The ionic conductivity of the prepared sulphide solid electrolyte is significantly improved, which is also conducive to improvement of energy density of the all-solid-state batteries.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: January 4, 2022
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Chengdu Liang, Chengyong Liu, Bobing Hu, Jiawei Fu, Qian Li, Meng Cheng, Yongsheng Guo
  • Publication number: 20210257657
    Abstract: The present application provides a preparation method for a solid electrolyte, including: acquiring an initial reaction mixture including a lithium precursor, a central atom ligand and an organic solvent; acquiring a modified solution including a borate ester and the organic solvent; mixing the initial reaction mixture and the modified solution, and drying to acquire an initial product; performing a grinding, cold press and heat treatment to the initial product to obtain the solid electrolyte. In the preparation method provided by the present application, a B and O co-doped sulphide solid electrolyte can be obtained by modifying the sulphide solid electrolyte with the borate ester as a doping raw material. The ionic conductivity of the prepared sulphide solid electrolyte is significantly improved, which is also conducive to improvement of energy density of the all-solid-state batteries.
    Type: Application
    Filed: June 17, 2020
    Publication date: August 19, 2021
    Applicant: Contemporary Amperex Technology Co., Limited
    Inventors: Chengdu LIANG, Chengyong LIU, Bobing HU, Jiawei FU, Qian LI, Meng CHENG, Yongsheng GUO