Patents by Inventor Dayang Cheng

Dayang Cheng 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 iron phosphate battery electrode and method for manufacturing the same
    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
  • LITHIUM IRON PHOSPHATE BATTERY ELECTRODE AND METHOD FOR MANUFACTURING THE SAME
    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