Patents by Inventor Zhongdong Peng

Zhongdong Peng 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 for preparing graphene-based LiFePO/C composite material
    Patent number: 9672951
    Abstract: The present invention relates to a method for preparing a graphene-based LiFePO4/C composite material, to solve the problem of poor conductivity and rate performance of lithium iron phosphate cathode material. The main features of the present invention include the steps of: 1) preparing an iron salt solution having graphene oxide dispersed therein; 2) preparing a ferric phosphate/graphene oxide precursor; 3) preparing the graphene-based LiFePO4/C composite material. The beneficial effects of the method is that the process is simple, easy to control and the resulted graphene-based LiFePO4/C composite material has high specific capacity, good recycle performance and excellent rate capability is particularly suitable to the field of the power battery application.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: June 6, 2017
    Assignee: GUOGUANG ELECTRIC COMPANY LIMITED
    Inventors: Guorong Hu, Yanbing Cao, Kaipeng Wu, Zhongdong Peng, Ke Du
  • METHOD FOR PREPARING GRAPHENE-BASED LiFePO4/C COMPOSITE MATERIAL
    Publication number: 20150102267
    Abstract: The present invention relates to a method for preparing a graphene-based LiFePO4/C composite material, to solve the problem of poor conductivity and rate performance of lithium iron phosphate cathode material. The main features of the present invention include the steps of: 1) preparing an iron salt solution having graphene oxide dispersed therein; 2) preparing a ferric phosphate/graphene oxide precursor; 3) preparing the graphene-based LiFePO4/C composite material. The beneficial effects of the method is that the process is simple, easy to control and the resulted graphene-based LiFePO4/C composite material has high specific capacity, good recycle performance and excellent rate capability is particularly suitable to the field of the power battery application.
    Type: Application
    Filed: May 9, 2013
    Publication date: April 16, 2015
    Applicant: GUOGUANG ELECTRIC COMPANY LIMITED
    Inventors: Guorong Hu, Yanbing Cao, Kaipeng Wu, Zhongdong Peng, Ke Du