Patents by Inventor Qiangli Gao

Qiangli Gao 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).

  • Method of producing a gel polymer Li-ion battery
    Patent number: 8382861
    Abstract: The invention relates to a composite gel polymer Li-ion battery and its producing method. The Li-ion battery cell includes a three-layer composite layer of positive electrode current collector, positive electrode active material and gel polymer electrolyte obtained by a two-layer one-step coating process; a two-layer composite layer of negative electrode current collector and negative electrode active material obtained by a single-layer coating process or a negative electrode two-layer composite layer coated with a little polyurethane adhesive(s) on the surface. The gel polymer Li-ion battery cell is obtained by laminating the resultant two composite layers. The gel polymer Li-ion battery cell has a small thickness and a compact structure, and is laminated closely and easy for preparation and industrial automatic production. The Li battery prepared by the method has a uniform structure, a low internal resistance, a high uniformity, a good unity, and a high safety.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: February 26, 2013
    Inventors: Xin Zhang, Haitao Xu, Yanchuan Guo, Qiangli Gao, Rongfu Li, Ying Cui, Yuanfen Hu, Keli Chen
  • Gel polymer Li-ion battery electrode slice and preparing method thereof
    Patent number: 8343655
    Abstract: The present invention relates to a gel polymer Li-ion battery electrode slice and a method for preparing the same. The electrode slice comprises a two-layer composite structure of electrode active material/gel electrolyte or a three-layer composite structure of electrode active material/gel electrolyte/electrode active material.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: January 1, 2013
    Inventors: Xin Zhang, Yanchuan Guo, Haitao Xu, Qiangli Gao, Rongfu Li, Ying Cui, Yuanfen Hu, Keli Chen
  • GEL POLYMER LI-ION BATTERY AND PRODUCING METHOD THEREOF
    Publication number: 20100304220
    Abstract: The invention relates to a composite gel polymer Li-ion battery and its producing method. The Li-ion battery cell includes a three-layer composite layer of positive electrode current collector, positive electrode active material and gel polymer electrolyte obtained by a two-layer one-step coating process; a two-layer composite layer of negative electrode current collector and negative electrode active material obtained by a single-layer coating process or a negative electrode two-layer composite layer coated with a little polyurethane adhesive(s) on the surface. The gel polymer Li-ion battery cell is obtained by laminating the resultant two composite layers.
    Type: Application
    Filed: March 9, 2010
    Publication date: December 2, 2010
    Inventors: Xin ZHANG, Haitao Xu, Yanchuan Guo, Qiangli Gao, Rongfu Li, Ying Cui, Yuanfen Hu, Keli Chen
  • GEL POLYMER LI-ION BATTERY ELECTRODE SLICE AND PREPARING METHOD THEREOF
    Publication number: 20100304221
    Abstract: The present invention relates to a gel polymer Li-ion battery electrode slice and a method for preparing the same. The electrode slice comprises a two-layer composite structure of electrode active material/gel electrolyte or a three-layer composite structure of electrode active material/gel electrolyte/electrode active material.
    Type: Application
    Filed: March 9, 2010
    Publication date: December 2, 2010
    Inventors: Xin ZHANG, Yanchuan Guo, Haitao Xu, Qiangli Gao, Rongfu Li, Ying Cui, Yuanfen Hu, Keli Chen