Patents by Inventor Nanping LI

Nanping LI 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).

  • Patent number: 9840416
    Abstract: A method for synthesizing nano-lithium iron phosphate without water of crystallization in aqueous phase at normal pressure, which is part of a preparation method for a lithium ion positive electrode material. The preparation process comprises the following steps: preparing lithium phosphate, preparing an aqueous phase suspension of lithium phosphate, preparing a ferrous salt solution, preparing nano-lithium iron phosphate without water of crystallization, and recovering and recycling lithium in a mother solution of lithium iron phosphate. The present invention has the beneficial effects of mild reaction conditions, a short time, low energy consumption, reduced costs due to the recovery and recycling of lithium in the mother solution, stable batches, uniform and controllable strength, and being conducive to industrial production.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: December 12, 2017
    Assignee: General Lithium Corporation
    Inventors: Nanping Li, Guoduan He, Qin Zhang, Yanfeng Jiang
  • Publication number: 20160145103
    Abstract: A method for synthesizing nano-lithium iron phosphate without water of crystallization in aqueous phase at normal pressure, which is part of a preparation method for a lithium ion positive electrode material. The preparation process comprises the following steps: preparing lithium phosphate, preparing an aqueous phase suspension of lithium phosphate, preparing a ferrous salt solution, preparing nano-lithium iron phosphate without water of crystallization, and recovering and recycling lithium in a mother solution of lithium iron phosphate. The present invention has the beneficial effects of mild reaction conditions, a short time, low energy consumption, reduced costs due to the recovery and recycling of lithium in the mother solution, stable batches, uniform and controllable strength, and being conducive to industrial production.
    Type: Application
    Filed: March 5, 2014
    Publication date: May 26, 2016
    Inventors: Nanping LI, Guoduan HE, Qin ZHANG, Yanfeng JIANG