Patents by Inventor YU-CHIEN LIU

YU-CHIEN LIU 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 preparing soft carbon material for high-voltage supercapacitor and asymmetrical supercapacitor
    Patent number: 11830673
    Abstract: A method of preparing a soft carbon material for high-voltage supercapacitors includes: providing an initial soft carbon material characterized by: (A) a first carbon layer spacing greater than 0.345 nm but less than 0.360 nm; (B) a crystal plane (002) with a length (Lc) less than 6 nm; (C) a crystal plane (101) with a length (La) less than 6 nm; and (D) an intensity ratio (I(002)/I(101)) of the crystal plane (002) to the crystal plane (101) obtained by XRD analysis being less than 60; performing an alkaline activation on the initial soft carbon material with an alkaline activator to obtain a first processing carbon material; and performing an electrochemical activation on the first processing carbon material with an electrolyte to obtain the soft carbon material for the high-voltage supercapacitors.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: November 28, 2023
    Assignee: CPC CORPORATION, TAIWAN
    Inventors: Yan-Shi Chen, Gao-Shee Leu, Yu-Chien Liu, Chi-Chang Hu
  • METHOD OF PREPARING SOFT CARBON MATERIAL FOR HIGH-VOLTAGE SUPERCAPACITOR AND ASYMMETRICAL SUPERCAPACITOR
    Publication number: 20210343485
    Abstract: A method of preparing a soft carbon material for high-voltage supercapacitors includes: providing an initial soft carbon material characterized by: (A) a first carbon layer spacing greater than 0.345 nm but less than 0.360 nm; (B) a crystal plane (002) with a length (Lc) less than 6 nm; (C) a crystal plane (101) with a length (La) less than 6 nm; and (D) an intensity ratio (I(002)/I(101)) of the crystal plane (002) to the crystal plane (101) obtained by XRD analysis being less than 60; performing an alkaline activation on the initial soft carbon material with an alkaline activator to obtain a first processing carbon material; and performing an electrochemical activation on the first processing carbon material with an electrolyte to obtain the soft carbon material for the high-voltage supercapacitors.
    Type: Application
    Filed: August 10, 2020
    Publication date: November 4, 2021
    Inventors: YAN-SHI CHEN, GAO-SHEE LEU, YU-CHIEN LIU, CHI-CHANG HU