Patents by Inventor Hang Jiao

Hang Jiao 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: 11858827
    Abstract: A preparation method of a nanotube hierarchically structured lithium titanate includes the steps of: S1. dispersing a titanium source into an aqueous solution containing lithium hydroxide and hydrogen peroxide and stirring to obtain a mixed solution; S2. subjecting the mixed solution obtained in step S1 to a reaction by heating to obtain a precursor having a nanowire-like structure; S3. subjecting the precursor having a nanowire-like structure obtained in step S2 to separation and drying; S4. subjecting the precursor having a nanowire-like structure after separation and drying to a low-temperature annealing treatment; S5. subjecting the precursor having a nanowire-like structure after the low-temperature annealing treatment to a liquid thermal reaction to obtain the nanotube hierarchically structured lithium titanate. The method includes a simple process and easily controllable process parameters, and may be easily scaled-up for industrial production.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: January 2, 2024
    Assignee: PETROCHINA COMPANY LIMITED
    Inventors: Xu Jin, Jianming Li, He Liu, Hang Jiao, Xiaoqi Wang, Liang Sun, Xiaodan Liu
  • Patent number: 11554966
    Abstract: The present invention provides a nanostructured titanic acid salt and a preparation process and use thereof. The process comprises preparing a dispersion containing titanium peroxy complex; slowly adding a metal compound to the dispersion containing the titanium peroxy complex to form a solution; adding an alcohol to the solution under normal temperature and normal pressure to produce the nanostructured titanic acid salt precursor precipitate in the solution, and separating the precipitate to obtain the titanic acid salt precursor; drying the precursor, and then heat treating it to obtain the nanostructured titanic acid salt product. The present invention provides a process for preparing a titanic acid salt with simple preparation process, easy control for process parameters and easy large-scale industrial production.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: January 17, 2023
    Assignee: PetroChina Company Limited
    Inventors: Xu Jin, Jianming Li, Xiaoqi Wang, Hang Jiao, Liang Sun, Xiaodan Liu
  • Patent number: 11387452
    Abstract: The present invention provides a linear porous lithium titanate material, preparation and product thereof. The material comprises a lithium titanate material having a crystal phase which is a spinel type, wherein the lithium titanate material has a linear structure having an aspect ratio of greater than 10, and the linear lithium titanate material has a porous structure; wherein the linear porous lithium titanate material has a structure composed of a plurality of particles having an oriented growth direction. The material has a long-axis structure which facilitates the effective migration of electrons, a porous structure which facilitates the rapid intercalation and deintercalation process of lithium ions, sodium ions or potassium ions, and a large specific surface area which facilitates the contact area between the electrolyte solution and the electrodes and reduces the current density, thus is excellent in a rapid charge-discharge performance of the battery.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: July 12, 2022
    Assignee: PetroChina Company Limited
    Inventors: Jianming Li, Xu Jin, He Liu, Xiaoqi Wang, Xiaodan Liu, Hang Jiao
  • Publication number: 20200071183
    Abstract: The present invention provides a nanostructured titanic acid salt and a preparation process and use thereof. The process comprises preparing a dispersion containing titanium peroxy complex; slowly adding a metal compound to the dispersion containing the titanium peroxy complex to form a solution; adding an alcohol to the solution under normal temperature and normal pressure to produce the nanostructured titanic acid salt precursor precipitate in the solution, and separating the precipitate to obtain the titanic acid salt precursor; drying the precursor, and then heat treating it to obtain the nanostructured titanic acid salt product. The present invention provides a process for preparing a titanic acid salt with simple preparation process, easy control for process parameters and easy large-scale industrial production.
    Type: Application
    Filed: August 29, 2019
    Publication date: March 5, 2020
    Inventors: Xu Jin, Jianming Li, Xiaoqi Wang, Hang Jiao, Liang Sun, Xiaodan Liu
  • Publication number: 20200071186
    Abstract: The present invention provides a linear porous titanium dioxide material and the preparation and products thereof. The linear porous titanium dioxide material has an anatase phase structure and a single crystal structure, and the structure of the linear porous titanium dioxide material is composed of a plurality of particles having an oriented growth direction. The invention also provides a method of preparing the above material and the use thereof. The long axis of structure of the titanium dioxide porous nanowire of the present invention facilitates effective electron migration.
    Type: Application
    Filed: August 29, 2019
    Publication date: March 5, 2020
    Inventors: Jianming Li, Xu Jin, Xiaoqi Wang, Xiaodan Liu, Hang Jiao, Liang Sun, Ling Su
  • Publication number: 20200071184
    Abstract: A preparation method of a nanotube hierarchically structured lithium titanate includes the steps of: S1. dispersing a titanium source into an aqueous solution containing lithium hydroxide and hydrogen peroxide and stirring to obtain a mixed solution; S2. subjecting the mixed solution obtained in step S1 to a reaction by heating to obtain a precursor having a nanowire-like structure; S3. subjecting the precursor having a nanowire-like structure obtained in step S2 to separation and drying; S4. subjecting the precursor having a nanowire-like structure after separation and drying to a low-temperature annealing treatment; S5. subjecting the precursor having a nanowire-like structure after the low-temperature annealing treatment to a liquid thermal reaction to obtain the nanotube hierarchically structured lithium titanate. The method includes a simple process and easily controllable process parameters, and may be easily scaled-up for industrial production.
    Type: Application
    Filed: August 29, 2019
    Publication date: March 5, 2020
    Applicant: PETROCHINA COMPANY LIMITED
    Inventors: Xu JIN, Jianming LI, He LIU, Hang JIAO, Xiaoqi WANG, Liang SUN, Xiaodan LIU
  • Publication number: 20200075944
    Abstract: The present invention provides a linear porous lithium titanate material, preparation and product thereof. The material comprises a lithium titanate material having a crystal phase which is a spinel type, wherein the lithium titanate material has a linear structure having an aspect ratio of greater than 10, and the linear lithium titanate material has a porous structure; wherein the linear porous lithium titanate material has a structure composed of a plurality of particles having an oriented growth direction. The material has a long-axis structure which facilitates the effective migration of electrons, a porous structure which facilitates the rapid intercalation and deintercalation process of lithium ions, sodium ions or potassium ions, and a large specific surface area which facilitates the contact area between the electrolyte solution and the electrodes and reduces the current density, thus is excellent in a rapid charge-discharge performance of the battery.
    Type: Application
    Filed: August 30, 2019
    Publication date: March 5, 2020
    Inventors: Jianming Li, Xu Jin, He Liu, Xiaoqi Wang, Xiaodan Liu, Hang Jiao