Patents by Inventor Hyung Kwon HWANG

Hyung Kwon HWANG 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).

  • ELECTROLYTE COMPOSITION WITH FLUORINATED ACYCLIC CARBONATE AND FLUORINATED CYCLIC CARBONATE
    Publication number: 20230019506
    Abstract: An electrochemical cell comprises an anode, a cathode and an electrolyte composition, wherein the anode comprises as anode active material a combination of at least a carbon material and a silicon material; and the electrolyte composition comprises a solvent, from 0.5 wt. % to 70 wt. %, based on the total weight of the electrolyte, of a fluorinated acyclic carbonate compound, from 0.5 wt. % to 10 wt. %, based on the total weight of the electrolyte, of a fluorinated cyclic carbonate compound; and an electrolyte salt.
    Type: Application
    Filed: November 13, 2020
    Publication date: January 19, 2023
    Applicant: Solvay SA
    Inventors: Hyun-Cheol Lee, Hyung-Kwon Hwang, Eun-Ji Moon, Du-Hyun Won, Lawrence Alan Hough, Jong-Hyun Lee
  • ELECTROLYTE COMPOSITION WITH FLUORINATED ACYCLIC ESTER AND FLUORINATED CYCLIC CARBONATE
    Publication number: 20230006255
    Abstract: An electrochemical cell comprises an anode, a cathode and an electrolyte composition, wherein the anode comprises as anode active material a combination of at least a carbon material and a silicon material; and the electrolyte composition comprises a solvent, from 0.5 wt. % to 70 wt. %, based on the total weight of the electrolyte, of a fluorinated acyclic carboxylic acid ester compound, from 0.5 wt. % 10 wt. %, based on the total weight of the electrolyte, of a fluorinated cyclic carbonate compound; and an electrolyte salt.
    Type: Application
    Filed: November 13, 2020
    Publication date: January 5, 2023
    Applicant: Solvay SA
    Inventors: Hyun-Cheol Lee, Hyung-Kwon Hwang, Eun-Ji Moon, Lawrence Alan Hough, Du-Hyun Won, Jong-Hyun Lee
  • NON-AQUEOUS ELECTROLYTE COMPOSITIONS COMPRISING LITHIUM BIS(FLUOROSULFONYL)IMIDE
    Publication number: 20200335825
    Abstract: Disclosed are electrolyte compositions comprising a fluorinated acyclic carboxylic acid ester, lithium bis(fluorosulfonyl)imide (also called LiFSI); and at least one electrolyte salt. The electrolyte compositions are useful in electrochemical cells, such as lithium-ion batteries.
    Type: Application
    Filed: January 11, 2019
    Publication date: October 22, 2020
    Inventors: Daniel HANCOCK, Du-Hyun WON, Hyuncheol LEE, Hyung Kwon HWANG, Eun-Ji MOON
  • Method for the manufacture of fluorinated cyclic carbonates and their use for lithium ion batteries
    Patent number: 10756389
    Abstract: The present invention concerns methods for the manufacture of ethylene carbonate substituted with a fluorinated alkoxy group, certain ethylene carbonates substituted with a fluorinated alkoxy group as well as their use as solvent or solvent additive for lithium ion batteries and supercapacitors.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: August 25, 2020
    Assignee: SOLVAY SA
    Inventors: Ji-hun Lee, Ji-Ae Choi, Hyung Kwon Hwang, Martin Bomkamp, Sergey N. Tverdomed, Mykhailo Shevchuk, Nataliya Kalinovich, Gerd-Volker Röschenthaler
  • METHOD FOR THE MANUFACTURE OF FLUORINATED CYCLIC CARBONATES AND THEIR USE FOR LITHIUM ION BATTERIES
    Publication number: 20180219256
    Abstract: The present invention concerns methods for the manufacture of ethylene carbonate substituted with a fluorinated alkoxy group, certain ethylene carbonates substituted with a fluorinated alkoxy group as well as their use as solvent or solvent additive for lithium ion batteries and supercapacitors.
    Type: Application
    Filed: July 28, 2016
    Publication date: August 2, 2018
    Inventors: Ji-hun LEE, Ji-Ae CHOI, Hyung Kwon HWANG, Martin BOMKAMP, Sergey N. TVERDOMED, Mykhailo SHEVCHUK, Nataliya KALINOVICH, Gerd-Volker RÖSCHENTHALER