Patents by Inventor Guoguang Wang

Guoguang Wang 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: 20240047649
    Abstract: A modified silicon-carbon negative electrode material, a preparation method therefor, and an application thereof are disclosed. A method includes mixing a silicon-carbon negative electrode material with a lithium alkoxide solution to carry out a solvothermal reaction. The solid powder obtained after the solvothermal reaction is alcohol washed. The powder is dried to obtain the modified silicon-carbon negative electrode material. The lithium alkoxide solution is formed by mixing metallic lithium with an alcohol solvent.
    Type: Application
    Filed: April 25, 2021
    Publication date: February 8, 2024
    Applicant: HENGDIAN GROUP DMEGC MAGNETICS CO., LTD
    Inventors: Hailiang Ren, Guoguang Wang, Yiyao Han, Yang Xia, Jun Xu
  • Publication number: 20230041325
    Abstract: A doped phosphorus-sulfur iodide solid electrolyte, a preparation method therefor, and use thereof. The chemical formula of said solid electrolyte is Li6-xMxP1-xS5I, in which 0<x<0.8, and M is tungsten and/or molybdenum. Said method comprises: 1) mixing a lithium source, a phosphorus source, an iodine source, a sulfur source, and an M source in an inert atmosphere, and then ball-milling same to obtain a solid electrolyte precursor; and 2) sintering the solid electrolyte precursor obtained in step 1) in an inert atmosphere or in vacuum to obtain the doped phosphorus-sulfur iodide solid electrolyte.
    Type: Application
    Filed: June 4, 2020
    Publication date: February 9, 2023
    Applicant: HENGDIAN GROUP DMEGC MAGNETICS CO., LTD
    Inventors: Guoguang Wang, Cheng Shi, Zhanzhou Wang, Yisheng Jiang, Yang Xia, Jun Zhang
  • Publication number: 20220035820
    Abstract: This application discloses a storage structure of a data object, a method and a system for storing and dynamically managing data objects on a computer, a storage medium and an electronic device. In the method, a data object template containing attribute tuples is constructed and stored, and then the data object template is read into the memory and the storage, update, query and deletion process of data objects is managed based on the data object template.
    Type: Application
    Filed: October 18, 2021
    Publication date: February 3, 2022
    Inventors: Xiaoyong CHEN, Songqiang TANG, Yexing ZHANG, Guoguang WANG, Danpeng GU, Shuankang HE, Lingheng ZHU, Yuanxiang WU, Xuan ZHANG
  • Patent number: 9012083
    Abstract: The present invention relates to an electrode for the lithium iron phosphate battery and the manufacturing method thereof, and more particularly, to a coated electrode for the lithium iron phosphate with a smooth surface and without de-powder phenomenon and the manufacturing method thereof. The electrode provided in the present invention uses an arabic gum modified by adding silicone-based gel into the arabic gum. The lithium iron phosphate active material and the conductive agent in a certain ratio are added into the aforesaid modified arabic gums, after the mixing process, a liquid slurry with a certain viscosity is formed. Then, the liquid slurry is coated uniformly onto a positive current collector of aluminum foil or mesh, and followed by the process like drying, calendaring, cutting and etc. to form positive electrode plate. The electrode in the present invention has the characteristics of smooth surface and no de-powder phenomenon.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: April 21, 2015
    Assignee: Hengdian Group DMEGC Magnetic Limited Company
    Inventors: Dayang Cheng, Guoguang Wang, Daxin Bao, Shijin He
  • Patent number: 8241521
    Abstract: The present invention relates to a lithium ion cathode material lithium iron phosphate having oxygen vacancy and doped in the position of Fe and a preparation method of quick micro-wave sintering for the same. The molecular formula of the product in present invention is expressed as LiFe1-x-aMeaMxPO4-yNz, wherein Me is one or more elements selected from Mg, Mn or Nd, and M is one or more elements selected from Li, Na, K, Ag or Cu; 0?x?0.1, 0<a?0.1, 0<y?0.5, 0?z?0.5, wherein x and z can not be 0 simultaneously. The quick micro-wave sintering preparation method in the present invention has advantages of high production efficiency, low energy consumption, good batch stability of the prepared product, excellent rate performance and cycle performance.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: August 14, 2012
    Assignee: Hengdian Group DMEGC Magnetic Limited Company
    Inventors: Jiangjian Jin, Guoguang Wang, Jun Xu, Daxin Bao
  • Publication number: 20100171071
    Abstract: The present invention relates to a lithium ion cathode material lithium iron phosphate having oxygen vacancy and doped in the position of Fe and a preparation method of quick micro-wave sintering for the same. The molecular formula of the product in present invention is expressed as LiFe1-x-aMeaMxPO4-yNz, wherein Me is one or more elements selected from Mg, Mn or Nd, and M is one or more elements selected from Li, Na, K, Ag or Cu; 0?x?0.1, 0<a?0.1, 0<y?0.5, 0?z?0.5, wherein x and z can not be 0 simultaneously. The quick micro-wave sintering preparation method in the present invention has advantages of high production efficiency, low energy consumption, good batch stability of the prepared product, excellent rate performance and cycle performance.
    Type: Application
    Filed: November 19, 2009
    Publication date: July 8, 2010
    Applicant: Hengdian Group DMEGC Magnetic Limited Company
    Inventors: Jiangjian Jin, Guoguang Wang, Jun Xu, Daxin Bao
  • Publication number: 20100167127
    Abstract: The present invention relates to an electrode for the lithium iron phosphate battery and the manufacturing method thereof, and more particularly, to a coated electrode for the lithium iron phosphate with a smooth surface and without de-powder phenomenon and the manufacturing method thereof. The electrode provided in the present invention uses an arabic gum modified by adding silicone-based gel into the arabic gum. The lithium iron phosphate active material and the conductive agent in a certain ratio are added into the aforesaid modified arabic gums, after the mixing process, a liquid slurry with a certain viscosity is formed. Then, the liquid slurry is coated uniformly onto a positive current collector of aluminum foil or mesh, and followed by the process like drying, calendaring, cutting and etc. to form positive electrode plate. The electrode in the present invention has the characteristics of smooth surface and no de-powder phenomenon.
    Type: Application
    Filed: December 17, 2009
    Publication date: July 1, 2010
    Applicant: Hengdian Group DMEGC Magnetic Limited Company, a Chinese Corporation
    Inventors: Dayang Cheng, Guoguang Wang, Daxin Bao, Shijin He