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公开(公告)号：US11774515B2
公开(公告)日：2023-10-03
申请号：US17420203
申请日：2020-01-21
发明人： Hyeon Jin Song
IPC分类号： G01R31/396 , G01R31/389 , G01R31/392 , G01R31/3842 , B60L58/12 , B60L58/16 , H02J7/00 , B60L3/00
CPC分类号： G01R31/396 , B60L3/0046 , B60L58/12 , B60L58/16 , G01R31/389 , G01R31/3842 , G01R31/392 , H02J7/0013 , H02J7/0049 , B60L2240/547 , B60L2240/549
摘要： A battery cell error determining apparatus including: a magnetic field measurement unit configured to measure a magnetic field generated by a current flowing in a battery cell, and a control unit configured to calculate a capacity of the battery cell by using a current calculated by the magnetic field measured by the magnetic field measurement unit. The control unit determines an error of the battery cell by using the capacity of the battery cell.
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公开(公告)号：US20230046162A1
公开(公告)日：2023-02-16
申请号：US17792119
申请日：2021-02-08
发明人： Hyeon Jin Song
IPC分类号： H01M10/48 , H01M50/211 , H01M10/613 , H01M10/647 , H01M50/105
摘要： A battery including a swelling sensing unit. The battery includes a case and an electrode assembly in the case. The battery further includes a film on a surface of the battery. The film includes a predetermined amount of elasticity or having substantially no elasticity.
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公开(公告)号：US20230291021A1
公开(公告)日：2023-09-14
申请号：US17927424
申请日：2021-09-27
发明人： Solji Yoo , Hyeon Jin Song , Wongon Kim
IPC分类号： H01M10/48 , H01M10/42 , G01R31/382 , G01R31/00
CPC分类号： H01M10/486 , H01M10/425 , H01M10/482 , G01R31/382 , G01R31/007 , H01M2010/4271 , G01R27/025
摘要： A battery system includes a battery pack including a plurality of battery cells a pressure sensor located inside the battery pack to measure an internal pressure of the battery pack every sampling cycle; and a battery management system calculating a reference pressure based on an average of internal pressures measured at sampling cycles for a sampling period, calculating a pressure fluctuation amount based on a difference of the internal pressure measured every sampling cycle from the reference pressure, and determining that a thermal event has occurred in the battery pack if the internal pressure measured every sampling cycle increases consecutively at least two times when the pressure fluctuation amount is greater than or equal to a predetermined threshold pressure.
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公开(公告)号：US20220065944A1
公开(公告)日：2022-03-03
申请号：US17420203
申请日：2020-01-21
发明人： Hyeon Jin Song
IPC分类号： G01R31/396 , H02J7/00 , G01R31/389 , G01R31/3842 , G01R31/392 , B60L3/00 , B60L58/16 , B60L58/12
摘要： A battery cell error determining apparatus including: a magnetic field measurement unit configured to measure a magnetic field generated by a current flowing in a battery cell, and a control unit configured to calculate a capacity of the battery cell by using a current calculated by the magnetic field measured by the magnetic field measurement unit. The control unit determines an error of the battery cell by using the capacity of the battery cell.
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