公开(公告)号：US20210359317A1

公开(公告)日：2021-11-18

申请号：US17318169

申请日：2021-05-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Anshul KAUSHIK ,  Atanu TALUKDAR ,  Rajkumar Subhash PATIL ,  Shashishekara Parampalli ADIGA ,  Daebong JUNG

IPC: H01M8/04537 ,  H01M8/0662

Abstract: A method for estimating a plurality of parameters pertaining to an electrochemical model of a cell may include: obtaining, by a device, an Electrochemical Impedance Spectroscopy (EIS) spectrum and a Constant Current-Constant Voltage (CC-CV) charge-Constant Current (CC) discharge response of the cell; extracting, by the device, a plurality of features from the EIS spectrum and a plurality of features from the CC-CV charge-CC discharge response of the cell; and estimating, by the device, the plurality of parameters based on at least one of the plurality of features of the EIS spectrum and at least one of the plurality of features of the CC-CV charge-CC discharge response of the cell.

公开(公告)号：US20200319256A1

公开(公告)日：2020-10-08

申请号：US16839235

申请日：2020-04-03

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mohan Kumar Singh VERMA ,  Shashishekara Parampalli ADIGA ,  Tae Won SONG

IPC: G01R31/3842 ,  G01R31/3167 ,  G01R31/36 ,  G01R31/396 ,  G01R31/392 ,  B60L58/13 ,  H01M10/42

Abstract: A method and system that enhances a service life of a battery is provided. The method includes values of a set of operational characteristics of a plurality of electrochemically active materials of at least one electrode of the battery. The set of operational characteristics include a voltage, a change in accumulated energy, a change in ohmic resistance, and a change in a rate of change in accumulated energy with respect to a rate of change in ohmic resistance. The values are compared with predefined values of the set of operational characteristics. A rate of depletion and a type of depletion of each of the plurality of electrochemically active materials are determined, and a range of the State of Charge, a range of the voltage, and a range of current to operate the battery for enhanced service life are determined.

公开(公告)号：US20250067815A1

公开(公告)日：2025-02-27

申请号：US18797418

申请日：2024-08-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sagar BHARATHRAJ ,  Shashishekara Parampalli ADIGA

IPC: G01R31/52 ,  G01R31/378 ,  G01R31/3835 ,  H01M10/42

Abstract: Provided is a method of estimating a short resistance of a target battery associated with a battery-driven device. The method includes: determining voltage values of the target battery within a time period during a charging or discharging state of the target battery, wherein the time period is associated with a constant resistance value within the target battery; comparing the voltage values with reference voltage values associated with a reference battery; based on the comparing, determining, for the pre-defined time period, a magnitude of a voltage deviation of the target battery with respect to the reference battery; detecting a short circuit in the target battery based on the determined magnitude of the voltage deviation; and estimating the short resistance associated with the short circuit of the target battery based on the constant resistance value and the magnitude of the voltage deviation.

公开(公告)号：US20250020725A1

公开(公告)日：2025-01-16

申请号：US18766999

申请日：2024-07-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sagar BHARATHRAJ ,  Shashishekara Parampalli ADIGA

IPC: G01R31/3842 ,  G01R31/367

Abstract: A processor-implemented method including generating a voltage slope based on monitored cell voltage and current data of a battery, the cell voltage and current data being taken during a charging window or discharging window of the battery, determining a change in a sign of the voltage slope by comparing the voltage slope with a reference voltage slope of a reference battery, determining, based on the change in the sign of the voltage slope, a deviation in a magnitude of the voltage slope by comparing the magnitude of the voltage slope with a preset magnitude of the reference voltage slope, and detecting an intermittent short in the battery based on a determination that a deviation in the magnitude of the voltage slope is greater than a preset threshold value.

公开(公告)号：US20240185385A1

公开(公告)日：2024-06-06

申请号：US18529286

申请日：2023-12-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Priyadarshini Panemangalore PAI ,  Shashishekara Parampalli ADIGA ,  Prashant Pandurang SHINDE

IPC: G06T3/4076 ,  G06T3/4046 ,  G06T5/50

CPC classification number: G06T3/4076 ,  G06T3/4046 ,  G06T5/50 ,  G06T2207/20081

Abstract: A method and system for screening a plurality of images for performing super-resolution (SR) are provided. The method includes using a multitask learning model (MLM) determining at least one of a plurality of image properties related to each of a plurality of images having a resolution lower than a predefined threshold; and selecting, based on the at least one of the plurality of image properties, a first set of images among the plurality of images to each be respectively suitable for upscaling; recommending, using a recommendation model, at least one parameter based on the at least one of the plurality of image properties; and generating at least one super-resolution image by respectively performing a super-resolution upscaling operation on at least one image of the first set of images based on the at least one parameter and the at least one of the plurality of image properties.

公开(公告)号：US20230400525A1

公开(公告)日：2023-12-14

申请号：US18308541

申请日：2023-04-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sagar BHARATHRAJ ,  Shashishekara Parampalli ADIGA

IPC: G01R31/388 ,  G01R31/367 ,  G01R31/389 ,  G01R31/392 ,  G01R31/36

CPC classification number: G01R31/388 ,  G01R31/367 ,  G01R31/389 ,  G01R31/392 ,  G01R31/3648

Abstract: The following description relates to a method and system with battery parameter estimation for a rest period. A method of estimating a battery parameter of a battery for a rest period of the battery includes: based on determining that an intercalation flux of the battery satisfies a predetermined condition, calculating an open circuit voltage (OCV) of the battery, wherein the OCV is calculated based on an initial voltage, a first time constant corresponding to a positive electrode of the battery, a second time constant corresponding to a negative electrode of the battery, a first constant, a second constant, and a value of a time variable for the rest period; and estimating the battery parameter based on the calculated OCV of the battery.

公开(公告)号：US20230384389A1

公开(公告)日：2023-11-30

申请号：US18074969

申请日：2022-12-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sagar BHARATHRAJ ,  Shashishekara Parampalli ADIGA

IPC: G01R31/389 ,  G01R31/3842 ,  H01M10/48

CPC classification number: G01R31/389 ,  G01R31/3842 ,  H01M10/48

Abstract: Provided are a method and device with battery short circuit detection. A method of detecting a short circuit in a battery includes: triggering a rest phase of the battery, determining a first time constant related to a rest voltage of the battery when the battery may be in the rest phase, estimating a first short-resistance value by comparing the first time constant with a second time constant related to a voltage of the battery, and making a short circuit determination for the battery based on a result of comparing the first short-resistance value and a second short-resistance value, wherein the first time constant and the second time constant may be determined with reference to either a temperature range or a charging range of the electronic device.

公开(公告)号：US20220342002A1

公开(公告)日：2022-10-27

申请号：US17723917

申请日：2022-04-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sagar BHARATHRAJ ,  Shashishekara Parampalli ADIGA

IPC: G01R31/392 ,  G01R31/388 ,  H02J7/00 ,  H01M10/44

Abstract: A method and apparatus for determining safety of a battery are disclosed, where the method includes identifying a charge state or a discharge state of the battery, activating pulse probe currents at different depths of charge or discharge (charge/discharge) of the battery, in response to identifying the charge or discharge state of the battery, and detecting and differentiating between a state of short (SOS) and a state of health (SOH) of the battery based on variations of the pulse probe currents as a function of the depths of charge/discharge.

公开(公告)号：US20210325470A1

公开(公告)日：2021-10-21

申请号：US17217364

申请日：2021-03-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Rajkumar Subhash PATIL ,  Shashishekara Parampalli ADIGA ,  Anshul KAUSHIK

IPC: G01R31/36 ,  H01M10/48 ,  G01R31/387 ,  H01M10/44 ,  G01R31/392 ,  G01N27/22

Abstract: A battery management system (BMS) and method for determining an active material content in an electrode includes determining a first peak in an inverse-differential capacity analysis curve of a the battery, determining a second peak in an incremental capacity analysis (ICA) curve associated with the at least one electrode, mapping the first peak of the inverse-differential capacity analysis curve to the second peak of the ICA curve, determining an active material content in the at least one electrode of the battery based on the mapping, and optimizing a performance of the battery based on the active material content in the at least one electrode.

公开(公告)号：US20210302506A1

公开(公告)日：2021-09-30

申请号：US17199946

申请日：2021-03-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mohan Kumar Singh VERMA ,  Shashishekara Parampalli ADIGA ,  Rajkumar Subhash PATIL

IPC: G01R31/387 ,  G01R31/392 ,  H01M10/48 ,  G01R31/367

Abstract: A method of estimating a maximum specific capacity of a composite electrode includes generating open circuit potential (OCP) crossover characteristics of the composite electrode comprising silicon and natural graphite, determining a composite electrode lithiation limit of the composite electrode based on a silicon lithiation limit of the silicon, predicting a composite electrode composition of the composite electrode based on the composite electrode lithiation limit, and estimating the maximum specific capacity of the composite electrode based on the composite electrode composition.