Patents by Inventor Guiping Zhang

Guiping Zhang 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: 20140087225
    Abstract: The invention discloses a high-capacity cylindrical lithium ion battery. Tab-position end face is shaped; a high frequency oscillation and pressure are applied on to make the foil bodies softened in the scope of 0.1-6.5 mm. At the instant of high-frequency oscillation, the rigidity of the foil body is greatly decreased; and the foil bodies are mutually wound and compressed together, so that the weight density of the foil body in unit volume is increased and meanwhile, the rigidity of the compressed foil body at the Tab-position end face is greatly increased, thereby laying a firm foundation for laser welding of the 1 Tab-position end face and a current collector, increasing a laser welding effective area of the Tab-position end face and the current collector, and improving the welding strength.
    Type: Application
    Filed: July 4, 2012
    Publication date: March 27, 2014
    Inventors: Guiping Zhang, Panyi Zhang
  • Publication number: 20050170248
    Abstract: A Modified Lithium Ion Polymer Battery, comprising multiple positive electrode sheets and multiple negative electrode sheets formed by blending binder with positive or negative electrode powder, respectively, and then coating or rolling with resulting mixture over copper foil or aluminum foil. Binder can be prepared from the following three components: (a) 0.1 wt %˜95 wt % of polyvinylidene fluoride, (b) 0.1 wt %˜90 wt % of amodified polyacrylates, (c) 0.1 wt %˜85 wt % of a modified polyethylene or polydienes, and choosing one or any two from them mixing in a proper ratio. The invention still provides a separation membrane, which is a non-porous polyalkylene oxide film, or a film made by coating a blend of polyalkylene oxide and polyvinylidene fluoride (PVDF), or a micro-porous polypropylene film, or a three-layered composite film of polypropylene, polyethylene and polypropylene.
    Type: Application
    Filed: February 3, 2005
    Publication date: August 4, 2005
    Inventors: Guiping Zhang, Yongyang Yu, Torng Lee
  • Publication number: 20030039886
    Abstract: A modified lithium ion polymer battery, comprising a positive electrode sheet and a negative electrode sheet, formed by blending a binder with positive electrode powder and coating the resulting blend on a copper foil or an aluminum foil used as the collector, wherein said binder can be prepared from the following three components: (a) 0.1 wt %˜95 wt % of polyvinylidene fluoride; (b) 0.1 wt %˜90 wt % of a modified polyacrylates; and (c) 0.
    Type: Application
    Filed: August 22, 2001
    Publication date: February 27, 2003
    Inventors: Guiping Zhang, Yongyang Yu, Torng Jinn Lee