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公开(公告)号：US20220074995A1
公开(公告)日：2022-03-10
申请号：US17463841
申请日：2021-09-01
发明人： Sagar BHARATHRAJ , Anshul KAUSHIK , Rajkumar Subhash PATIL , Shashishekara Parampalli ADIGA , Tae Won SONG
IPC分类号： G01R31/367 , B60L58/16 , B60L58/12 , G01R31/371 , G01R31/382 , G01R31/392
摘要： A battery management method and system are provided. The method includes acquiring one or more parameters associated with the battery. The one or more parameters includes a current level, a voltage level, a State of Charge (SOC), and a temperature. The method includes determining a load and energy estimation model based on the one or more acquired parameters. The method includes identifying a power limit of the battery based on the load and energy estimation model. The method includes determining a power margin of the battery at a first usage time interval based on the identified power limit. The method includes performing one or more actions, based on a determination that the power margin of the battery exceeds a predefined threshold level.
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2.发明申请公开(公告)号：US20210359317A1
公开(公告)日：2021-11-18
申请号：US17318169
申请日：2021-05-12
发明人： Anshul KAUSHIK , Atanu TALUKDAR , Rajkumar Subhash PATIL , Shashishekara Parampalli ADIGA , Daebong JUNG
IPC分类号： H01M8/04537 , H01M8/0662
摘要： 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.
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公开(公告)号：US20220085620A1
公开(公告)日：2022-03-17
申请号：US17402875
申请日：2021-08-16
发明人： Shashishekara Parampalli ADIGA , Mohan Kumar Singh VERMA , Ashish KHANDELWAL , Krishnan S HARIHARAN , Rajkumar Subhash PATIL , Subramanya Mayya KOLAKE
IPC分类号： H02J7/00
摘要： Disclosed are methods and apparatuses for charging a hybrid battery pack, the method including determining, by a battery management system (BMS), a current split ratio for allocating charging current to an energy cell and a power cell in a hybrid battery pack, based on any one or any combination of a state of charge (SoC) level of the energy cell at an instance of initiation of charging, a SoC level of the power cell at the instance of the initiation of the charging, a wattage of an adapter for charging the hybrid battery pack, a capacity of the hybrid battery pack, and a charging time period, and charging, by the BMS, the hybrid battery pack by allocating the charging current to the energy cell and the power cell based on the current split ratio.
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公开(公告)号：US20190221897A1
公开(公告)日：2019-07-18
申请号：US16155142
申请日：2018-10-09
发明人： Suman BASU , Ashwini Kumar SHARMA , Mohan Kumar SINGH VERMA , Rajkumar Subhash PATIL , Tae Won SONG , Young Hun SUNG
摘要： A processor-implemented battery management method includes iteratively determining fractions of components in an electrode of a battery; calculating a composite state of charge (SoC) of the battery by applying the iteratively determined fractions of the components to a composite cathode model used to predict a state of the battery; and predicting the state of the battery based on the calculated composite SoC.
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公开(公告)号：US20210242698A1
公开(公告)日：2021-08-05
申请号：US17085977
申请日：2020-10-30
发明人： Anshul KAUSHIK , Aravinda Reddy MANDLI , Ankit YADU , Krishnan Seethalakshmy HARIHARAN , Piyush TAGADE , Rajkumar Subhash PATIL , Jeonghoon JO
IPC分类号： H02J7/00
摘要： Embodiments herein provide a method for real time adaptive charging of a battery. The method includes receiving at least one battery parameter. Further, the method includes determining a present battery condition. Further, the method includes correcting the at least one battery parameter based on the present battery condition. Further, the method includes determining a real time optimal current used for charging the battery based on the at least one corrected battery parameter. Further, the method includes charging the battery based on the determined real time optimal current, where a battery management system configures a charger integrated circuit to charge the battery. Further, the method includes updating and storing the at least one battery parameter in real time in a memory after charging the battery at the optimal current.
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公开(公告)号：US20210080509A1
公开(公告)日：2021-03-18
申请号：US17018329
申请日：2020-09-11
发明人： Samarth AGARWAL , Subramanian Swernath BRAHMADATHAN , Krishnan S HARIHARAN , Seongho HAN , Anshul KAUSHIK , Rajkumar Subhash PATIL
IPC分类号： G01R31/392 , G01R31/36 , G01R31/371 , B60L58/16 , B60L3/00
摘要： Provided are a battery state measuring method and battery management system, which predict a time point when charging capacity of a battery is to be relatively abruptly reduced. The battery state measuring method includes: monitoring a change of at least one precursor related to the charging capacity of the battery with respect to a number of charging cycles undergone by the battery; and predicting that an abrupt reduction in the charging capacity of the battery is imminent when the change of the at least one precursor follows at least one pre-configured pattern of the battery that has undergone a critical number of charging cycles.
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7.发明申请公开(公告)号：US20210325470A1
公开(公告)日：2021-10-21
申请号：US17217364
申请日：2021-03-30
IPC分类号： G01R31/36 , H01M10/48 , G01R31/387 , H01M10/44 , G01R31/392 , G01N27/22
摘要： 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.
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公开(公告)号：US20210302506A1
公开(公告)日：2021-09-30
申请号：US17199946
申请日：2021-03-12
IPC分类号： G01R31/387 , G01R31/392 , H01M10/48 , G01R31/367
摘要： 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.
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公开(公告)号：US20210247460A1
公开(公告)日：2021-08-12
申请号：US17169402
申请日：2021-02-05
发明人： Arijit GUHA , Subramanian Swernath BRAHMADATHAN , Krishnan S. HARIHARAN , Piyush TAGADE , Rajkumar Subhash PATIL , Jeonghoon JO
IPC分类号： G01R31/392 , H01M10/42 , G01R31/3842 , G01R31/374
摘要： The present disclosure provides a method and a system for improving the state of health (SoH) of rechargeable batteries. The method comprises receiving a plurality of battery parameters during charging of a battery and estimating model parameters of the battery using a mathematical model. The method also comprises comparing the estimated model parameters of the battery and the received battery parameters to determine degradation parameters of the battery in real-time, determining new charging current profile of the battery based on the degradation parameters of the battery, and applying the determined new charging current profile to the battery for improving the SoH of the battery.
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