Patents by Inventor Suhak Lee

Suhak Lee 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).

  • Publication number: 20260031417
    Abstract: A battery configured to power a device includes a battery management unit (BMU). The BMU is configured to determine a fast charging handshake criteria based at least in part on a temperature of the battery and an aging condition of the battery. The BMU is also configured to transmit a fast charging handshake initiation signal based at least in part on a battery characteristic of the battery satisfying the fast charging handshake criteria.
    Type: Application
    Filed: July 25, 2024
    Publication date: January 29, 2026
    Inventors: Tianheng Feng, Wei He, Guangyu Liu, Suhak Lee, Sara Sattarzadeh, Yuanzhi Liu
  • Patent number: 12197922
    Abstract: A system includes a processor, a charger circuit and a battery management unit (BMU). The charger circuit charges a battery. The BMU includes an intelligent boot module that can send a boot signal to the processor based on information including a battery condition and system information. The processor starts a boot sequence based on the boot signal.
    Type: Grant
    Filed: September 15, 2022
    Date of Patent: January 14, 2025
    Assignee: APPLE INC.
    Inventors: Wei He, Eugene Kim, Guangyu Liu, Suhak Lee
  • Publication number: 20240095039
    Abstract: A system includes a processor, a charger circuit and a battery management unit (BMU). The charger circuit charges a battery. The BMU includes an intelligent boot module that can send a boot signal to the processor based on information including a battery condition and system information. The processor starts a boot sequence based on the boot signal.
    Type: Application
    Filed: September 15, 2022
    Publication date: March 21, 2024
    Inventors: Wei He, Eugene Kim, Guangyu Liu, Suhak Lee
  • Publication number: 20230029405
    Abstract: The present disclosure relates to a method for optimizing the formation protocol of a battery. The method can include the steps of: (a) providing a battery cell structure comprising an anode, an electrolyte, and a cathode including cations that move from the cathode to the anode during charging; (b) performing a first charge of the battery cell structure using a predetermined formation protocol to create a formed battery cell; and (c) determining a cell internal resistance of the formed battery cell. Therefore, one can compare the cell internal resistances of two battery cells formed by using identical battery cell structures and different formation protocols, and select a formation protocol if the first cell internal resistance of a first formed battery is greater than or less than the second cell internal resistance of a second formed battery.
    Type: Application
    Filed: July 7, 2022
    Publication date: January 26, 2023
    Inventors: ANNA G. STEFANOPOULOU, ANDREW WENG, PEYMAN MOHTAT, PETER M. ATTIA, VALENTIN SULZER, SUHAK LEE, GREG LESS
  • Publication number: 20210359347
    Abstract: The present disclosure provides an electrical device including a battery cell, a voltage sensor operatively coupled to the battery cell in order to measure a voltage level of the battery cell, a current sensor operatively coupled to the battery cell in order to measure an amount of current drawn from or supplied to the battery cell, and a battery management system (BMS). The battery management system includes a controller In communication with the voltage sensor and the current sensor. The controller is configured to execute a program stored in the BMS to calculate a state of health of the individual battery electrodes comprising a battery cell using a first differential voltage point, a second differential voltage point, and a characteristic curve of a fresh battery electrode of a fresh battery cell, wherein the battery cell includes a second battery electrode not exhibiting distinct phase transitions during a charge-discharge cycle.
    Type: Application
    Filed: August 6, 2019
    Publication date: November 18, 2021
    Inventors: Anna G. Stefanopoulou, Suhak Lee, Jason B. Siegel, Jang-Woo Lee, Tae-Kyung Lee