Patents by Inventor Jiasheng Qian

Jiasheng Qian 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).

  • MnOanode for Li-ion and Na-ion batteries
    Patent number: 10622618
    Abstract: In the present invention there is provided an MnO2 electrode with improved electrochemical properties, and a method of preparation of an electrode, wherein there anode comprises a substrate at least partially coated with MnO2 nanosheets (MnNSs) forming additive free MnO2 thin films. The method includes providing MnO2 nanosheets (MnNSs) suspension with diameters less than 50 nm; printing the MnNSs suspension on substrates to form MnO2 thin films (MnTFs); and annealing the MnTFs at 260-320° C. for at least 100 minutes. Energy storage device comprising the MnO2 electrode such as a Na-ion cell, and a Li-ion cell are also described.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: April 14, 2020
    Assignee: The Hong Kong Polytechnic University
    Inventors: Jiasheng Qian, Shu Ping Lau
  • Method for preparing aqueous MnOink and capacitive energy storage devices comprising MnO
    Patent number: 10395851
    Abstract: In one aspect, the present disclosure relates to an improved method of preparing concentrated MnO2 ink with increased efficiency and cost effectiveness. The method involves mixing KMnO4 solution with highly crystalline carbon particles (HCCPs) with average diameters less than 800 nm at 30-60° C. for at least 8 hours. The present disclosure further relates to a symmetric supercapacitor device comprising MnO2 coated electrodes and a solid state ionic liquid as electrolyte, as well as an interdigital transparent SC (IT-SC) device comprising aqueous MnO2 ink.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: August 27, 2019
    Assignee: The Hong Kong Polytechnic University
    Inventors: Jiasheng Qian, Jikang Yuan, Shu Ping Lau
  • MnO2 ANODE FOR LI-ION AND NA-ION BATTERIES
    Publication number: 20180342730
    Abstract: In the present invention there is provided an MnO2 anode with improved electrochemical properties, and a method of preparation of an anode, wherein there anode comprises a substrate at least partially coated with MnO2 nanosheets (MnNSs) forming additive free MnO2 thin films. The method includes providing MnO2 nanosheets (MnNSs) suspension with diameters less than 50 nm; printing the MnNSs suspension on substrates to form MnO2 thin films (MnTFs); and annealing the MnTFs at 260-320° C. for at least 100 minutes. Energy storage device comprising the MnO2 anode such as a Na-ion cell, and a Li-ion cell are also described.
    Type: Application
    Filed: May 23, 2017
    Publication date: November 29, 2018
    Inventors: Jiasheng Qian, Shu Ping Lau
  • METHOD FOR PREPARING AQUEOUS MNO2 INK AND CAPACITIVE ENERGY STORAGE DEVICES COMPRISING MNO2
    Publication number: 20170309411
    Abstract: In one aspect, the present disclosure relates to an improved method of preparing concentrated MnO2 ink with increased efficiency and cost effectiveness. The method involves mixing KMnO4 solution with highly crystalline carbon particles (HCCPs) with average diameters less than 800 nm at 30-60° C. for at least 8 hours. The present disclosure further relates to a symmetric supercapacitor device comprising MnO2 coated electrodes and a solid state ionic liquid as electrolyte, as well as an interdigital transparent SC (IT-SC) device comprising aqueous MnO2 ink.
    Type: Application
    Filed: March 3, 2017
    Publication date: October 26, 2017
    Inventors: Jiasheng Qian, Jikang Yuan, Shu Ping Lau