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).
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Patent number: 11929468Abstract: 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: GrantFiled: March 24, 2021Date of Patent: March 12, 2024Assignee: Samsung Electronics Co., Ltd.Inventors: Ju Wan Lim, Duk Jin Oh, Myunghoon Kim
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Publication number: 20240030733Abstract: 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: ApplicationFiled: February 7, 2023Publication date: January 25, 2024Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Tae Won SONG, Jinho KIM, Ju Wan LIM, Duk Jin OH, Terrance Christopher HUANG
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Publication number: 20230184845Abstract: 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: ApplicationFiled: May 27, 2022Publication date: June 15, 2023Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: JU WAN LIM, JINHO KIM, Myeongjae Lee, YOUNG HUN SUNG, DUK JIN OH
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Patent number: 11637330Abstract: 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: GrantFiled: November 5, 2020Date of Patent: April 25, 2023Assignee: Samsung Electronics Co., Ltd.Inventors: Duk Jin Oh, Young Hun Sung, Ju Wan Lim, Daeryong Jung
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Patent number: 11549989Abstract: 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: GrantFiled: September 28, 2021Date of Patent: January 10, 2023Assignee: Samsung Electronics Co., Ltd.Inventors: Daeryong Jung, Duk Jin Oh, Ju Wan Lim
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Publication number: 20220407324Abstract: 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: ApplicationFiled: January 13, 2022Publication date: December 22, 2022Applicant: Samsung Electronics Co., Ltd.Inventors: Daeryong JUNG, Jinho KIM, Young Hun SUNG, Duk Jin OH, Ju Wan LIM
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Publication number: 20220381830Abstract: 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: ApplicationFiled: October 26, 2021Publication date: December 1, 2022Applicant: Samsung Electronics Co., Ltd.Inventors: Ju Wan LIM, Daeryong JUNG, Jinho KIM, Young Hun SUNG, Duk Jin OH, Myeongjae LEE
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Patent number: 11444475Abstract: 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: GrantFiled: November 4, 2020Date of Patent: September 13, 2022Assignee: Samsung Electronics Co., Ltd.Inventors: Ju Wan Lim, YoungJae Kim, Duk Jin Oh, Young Hun Sung
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Patent number: 11428743Abstract: 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: GrantFiled: April 2, 2019Date of Patent: August 30, 2022Assignee: Samsung Electronics Co., Ltd.Inventors: Ju Wan Lim, Duk Jin Oh, Daeryong Jung
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Publication number: 20220200293Abstract: 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: ApplicationFiled: June 8, 2021Publication date: June 23, 2022Applicant: Samsung Electronics Co., LtdInventors: Myeongjae LEE, Ju Wan LIM, Duk Jin OH, Jinho KIM, Young Hun SUNG, Daeryong JUNG
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Patent number: 11368034Abstract: 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: GrantFiled: September 2, 2020Date of Patent: June 21, 2022Assignee: Samsung Electronics Co., Ltd.Inventors: Daeryong Jung, Young Hun Sung, Duk Jin Oh, Ju Wan Lim
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Publication number: 20220115875Abstract: 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: ApplicationFiled: April 23, 2021Publication date: April 14, 2022Applicant: Samsung Electronics Co., Ltd.Inventors: Daeryong JUNG, Ju Wan LIM, Jinho KIM, Young Hun SUNG, Duk Jin OH
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Publication number: 20220014026Abstract: 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: ApplicationFiled: September 28, 2021Publication date: January 13, 2022Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Daeryong JUNG, Duk Jin OH, Ju Wan LIM
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Patent number: 11139668Abstract: 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: GrantFiled: February 14, 2019Date of Patent: October 5, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Daeryong Jung, Duk Jin Oh, Ju Wan Lim
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Patent number: 11088558Abstract: 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: GrantFiled: July 2, 2020Date of Patent: August 10, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Daeryong Jung, Jinho Kim, Myung Hoon Kim, Young Hun Sung, Duk Jin Oh, Ju Wan Lim
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Patent number: 11002793Abstract: 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: GrantFiled: May 16, 2018Date of Patent: May 11, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Ju Wan Lim, Duk Jin Oh, Young Hun Sung
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Publication number: 20210066945Abstract: 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: ApplicationFiled: April 8, 2020Publication date: March 4, 2021Applicants: Samsung Electronics Co., Ltd., Samsung SDI Co., Ltd.Inventors: Daeryong JUNG, Duk Jin OH, Jinho KIM
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Publication number: 20210053450Abstract: 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: ApplicationFiled: November 5, 2020Publication date: February 25, 2021Applicant: Samsung Electronics Co., Ltd.Inventors: Duk Jin OH, Young Hun SUNG, Ju Wan LIM, Daeryong JUNG
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Publication number: 20210057921Abstract: 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: ApplicationFiled: November 4, 2020Publication date: February 25, 2021Applicant: Samsung Electronics Co., Ltd.Inventors: Ju Wan LIM, YoungJae KIM, Duk Jin OH, Young Hun SUNG
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Publication number: 20200403417Abstract: 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: ApplicationFiled: September 2, 2020Publication date: December 24, 2020Applicant: Samsung Electronics Co., Ltd.Inventors: Daeryong JUNG, Young Hun SUNG, Duk Jin OH, Ju Wan LIM