Patents by Inventor Duk-Jin Oh

Duk-Jin Oh 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: 11929468
    Abstract: A battery charging method includes: charging a battery with a charging current; and changing the charging current in response to a current change event occurring during the charging of the battery, wherein the current change event occurs when the battery reaches a threshold voltage at which an anode potential of the battery reaches a reference value.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: March 12, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ju Wan Lim, Duk Jin Oh, Myunghoon Kim
  • Publication number: 20240030733
    Abstract: A processor-implemented method with battery cell charging includes: for each degradation parameter set comprising one or more degradation parameters related to degradation, communicating with a server configured to generate and store a look-up table (LUT) comprising charge data for each index combination of the one or more degradation parameters comprised in the degradation parameter set; determining a current value of the one or more of the degradation parameters corresponding to a target battery cell of an electronic device and transmitting the current value to the server; receiving an LUT corresponding to the current value of the one or more degradation parameters from the server; and charging the target battery cell based on a charging profile that is generated by charge data of the received LUT.
    Type: Application
    Filed: February 7, 2023
    Publication date: January 25, 2024
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae Won SONG, Jinho KIM, Ju Wan LIM, Duk Jin OH, Terrance Christopher HUANG
  • Publication number: 20230184845
    Abstract: A method and apparatus for detecting an internal short circuit in a battery are provided. The method includes acquiring values of one or more basic parameters of the battery, acquiring values of one or more degradation parameters used in a battery model indicating an internal state of the battery based on the values of the one or more basic parameters, determining whether the internal short circuit occurs in the battery based on a first value of a first degradation parameter and a second value of a second degradation parameter from among the one or more degradation parameters, and performing an operation in response to the internal short circuit occurring in the battery.
    Type: Application
    Filed: May 27, 2022
    Publication date: June 15, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: JU WAN LIM, JINHO KIM, Myeongjae Lee, YOUNG HUN SUNG, DUK JIN OH
  • Patent number: 11637330
    Abstract: A battery charging method includes acquiring a functional relationship of a differential value of an amount of charge or a state of charge (SOC) with respect to a voltage of a battery based on the voltage or the SOC, determining charging steps for charging of the battery by analyzing the functional relationship, and generating a charging profile comprising charging currents for each of the charging steps to charge the battery.
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: April 25, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Duk Jin Oh, Young Hun Sung, Ju Wan Lim, Daeryong Jung
  • Patent number: 11549989
    Abstract: Disclosed is a charging method and apparatus which is optimized based on an electrochemical model, the charging method includes estimating an internal state of a battery, determining a charging limitation condition corresponding to a plurality of charging areas based on the internal state, and charging the battery based on the charging limitation condition.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: January 10, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Daeryong Jung, Duk Jin Oh, Ju Wan Lim
  • Publication number: 20220407324
    Abstract: A processor-implemented method with charging control includes: estimating respective step degradation amounts in charging steps of a first charging interval for each of first candidate current patterns of charging a battery from a first state of charge (SOC) level to a second SOC level during the first charging interval; determining an interval degradation amount in the first charging interval for each of the first candidate current patterns, based on the estimated step degradation amounts; and selecting a first representative current pattern indicating a minimum degradation amount from among the first candidate current patterns, based on the determined interval degradation amounts.
    Type: Application
    Filed: January 13, 2022
    Publication date: December 22, 2022
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Daeryong JUNG, Jinho KIM, Young Hun SUNG, Duk Jin OH, Ju Wan LIM
  • Publication number: 20220381830
    Abstract: To generate a charging path for a battery, a method includes generating simulation data for charging currents based on a battery model indicating an internal state of a battery, generating an initial look-up table (LUT) for the charging currents and preset battery voltage limits based on the simulation data, the initial LUT representing initial charging limit conditions of the battery for stages corresponding to the charging currents, generating a modified LUT by adjusting at least one of the initial charging limit conditions of the initial LUT, in response to the initial LUT failing to satisfy a threshold, determining a final LUT based on the modified LUT, in response to the modified LUT satisfying the threshold, and generating a charging path for the battery based on the final LUT.
    Type: Application
    Filed: October 26, 2021
    Publication date: December 1, 2022
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ju Wan LIM, Daeryong JUNG, Jinho KIM, Young Hun SUNG, Duk Jin OH, Myeongjae LEE
  • Patent number: 11444475
    Abstract: A battery charging method and apparatus are provided. A setting value of charging control information is determined based on an overpotential value and a voltage value of a battery and is applied in the charging control information, and a voltage applied to charge the battery is controlled based on the charging control information that applies the setting value.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: September 13, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ju Wan Lim, YoungJae Kim, Duk Jin Oh, Young Hun Sung
  • Patent number: 11428743
    Abstract: A battery charging method includes: charging a battery based on a charging profile; and in response to a charging termination event occurring, terminating the charging of the battery, wherein the charging profile is determined using weight information derived based on battery characteristic information and a basic charging profile.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: August 30, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ju Wan Lim, Duk Jin Oh, Daeryong Jung
  • Publication number: 20220200293
    Abstract: A short circuit detection method includes obtaining battery data associated with a state of a battery from a charging cycle of the battery, estimating an error in the battery data using an estimation model, determining a state indicator corresponding to the error in the battery data, and detecting a short circuit of the battery based on a result of comparing the state indicator and a short circuit threshold.
    Type: Application
    Filed: June 8, 2021
    Publication date: June 23, 2022
    Applicant: Samsung Electronics Co., Ltd
    Inventors: Myeongjae LEE, Ju Wan LIM, Duk Jin OH, Jinho KIM, Young Hun SUNG, Daeryong JUNG
  • Patent number: 11368034
    Abstract: A battery charging method and apparatus are provided. The battery charging apparatus determines, in a present charging operation, a variation in a charging current to charge a battery based on a degradation condition of the battery and an internal state of the battery in the present charging operation, and determines a charging current of a subsequent charging operation based on the variation in the charging current in the present charging operation and the charging current in the present charging operation.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: June 21, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Daeryong Jung, Young Hun Sung, Duk Jin Oh, Ju Wan Lim
  • Publication number: 20220115875
    Abstract: Disclosed is a method and apparatus for charging a battery, the method includes a method of charging a battery, the method including determining an aging rate coefficient based on an internal state of the battery and an aging parameter related to aging of the battery, predicting an aging rate of the battery based on the aging rate coefficient, and determining whether to change a charging limit condition to charge the battery based on a comparison between the predicted aging rate and a target aging rate.
    Type: Application
    Filed: April 23, 2021
    Publication date: April 14, 2022
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Daeryong JUNG, Ju Wan LIM, Jinho KIM, Young Hun SUNG, Duk Jin OH
  • Publication number: 20220014026
    Abstract: Disclosed is a charging method and apparatus which is optimized based on an electrochemical model, the charging method includes estimating an internal state of a battery, determining a charging limitation condition corresponding to a plurality of charging areas based on the internal state, and charging the battery based on the charging limitation condition.
    Type: Application
    Filed: September 28, 2021
    Publication date: January 13, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Daeryong JUNG, Duk Jin OH, Ju Wan LIM
  • Patent number: 11139668
    Abstract: Disclosed is a charging method and apparatus which is optimized based on an electrochemical model, the charging method includes estimating an internal state of a battery, determining a charging limitation condition corresponding to a plurality of charging areas based on the internal state, and charging the battery based on the charging limitation condition.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: October 5, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Daeryong Jung, Duk Jin Oh, Ju Wan Lim
  • Patent number: 11088558
    Abstract: A battery charging method and apparatus are provided. The battery charging apparatus receives a desired charging time of a battery, generates charging currents of charging steps to charge the battery based on the desired charging time, acquires a charging limit condition including an internal state condition and a maximum charging time for each of the charging steps based on the desired charging time and an electrochemical model of the battery, and generates a charging profile including the charging currents and charging times of the charging currents based on the charging limit condition.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: August 10, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Daeryong Jung, Jinho Kim, Myung Hoon Kim, Young Hun Sung, Duk Jin Oh, Ju Wan Lim
  • Patent number: 11002793
    Abstract: A battery monitoring method includes identifying a state of charge (SOC) of a battery, obtaining a voltage of the battery with respect to the SOC, in response to the identified SOC being included in a diagnosis section, and determining a state of health (SOH) of the battery based on the obtained voltage of the battery.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: May 11, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ju Wan Lim, Duk Jin Oh, Young Hun Sung
  • Publication number: 20210066945
    Abstract: A method and apparatus for charging a battery that estimates an aging mode of the battery that reflects an aging factor and an aging degree of the battery based on a battery characteristic corresponding to a charging level of the battery, updates a battery model based on the aging mode, and charges the battery using the updated battery model.
    Type: Application
    Filed: April 8, 2020
    Publication date: March 4, 2021
    Applicants: Samsung Electronics Co., Ltd., Samsung SDI Co., Ltd.
    Inventors: Daeryong JUNG, Duk Jin OH, Jinho KIM
  • Publication number: 20210053450
    Abstract: A battery charging method includes acquiring a functional relationship of a differential value of an amount of charge or a state of charge (SOC) with respect to a voltage of a battery based on the voltage or the SOC, determining charging steps for charging of the battery by analyzing the functional relationship, and generating a charging profile comprising charging currents for each of the charging steps to charge the battery.
    Type: Application
    Filed: November 5, 2020
    Publication date: February 25, 2021
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Duk Jin OH, Young Hun SUNG, Ju Wan LIM, Daeryong JUNG
  • Publication number: 20210057921
    Abstract: A battery charging method and apparatus are provided. A setting value of charging control information is determined based on an overpotential value and a voltage value of a battery and is applied in the charging control information, and a voltage applied to charge the battery is controlled based on the charging control information that applies the setting value.
    Type: Application
    Filed: November 4, 2020
    Publication date: February 25, 2021
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ju Wan LIM, YoungJae KIM, Duk Jin OH, Young Hun SUNG
  • Publication number: 20200403417
    Abstract: A battery charging method and apparatus are provided. The battery charging apparatus determines, in a present charging operation, a variation in a charging current to charge a battery based on a degradation condition of the battery and an internal state of the battery in the present charging operation, and determines a charging current of a subsequent charging operation based on the variation in the charging current in the present charging operation and the charging current in the present charging operation.
    Type: Application
    Filed: September 2, 2020
    Publication date: December 24, 2020
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Daeryong JUNG, Young Hun SUNG, Duk Jin OH, Ju Wan LIM