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    METHOD FOR ESTIMATING STATE OF HEALTH OF LITHIUM-SULFUR BATTERY
    61.
    发明公开
    METHOD FOR ESTIMATING STATE OF HEALTH OF LITHIUM-SULFUR BATTERY 审中-公开

    公开(公告)号：EP4266069A1

    公开(公告)日：2023-10-25

    申请号：EP22896163.7

    申请日：2022-11-21

    申请人： LG Energy Solution, Ltd.

    发明人： AHN, Jihoon ,  KIM, Bong Soo ,  HAN, Dong Hyeop

    IPC分类号： G01R31/392 ,  G01R31/382 ,  G01R31/367 ,  H02J7/00 ,  H01M10/052

    摘要： The present invention provides a method of estimating a state of health (SoH) of a lithium-sulfur battery, including the steps of: a) maintaining a state of health confirmation target battery in a rest state for 0.01 seconds or more in a state in which the state of health confirmation target battery is fully charged; b) measuring OCV (det) in a state in which a voltage drop is made during the rest state; c) calculating ΔOCV by subtracting OCV (det) from OCV (ini) previously measured in the same manner as in steps a) and b) at an initial stage of use of the state of health confirmation target battery; and d) estimating a state of health (%) of the battery from a magnitude of the ΔOCV.

    BATTERY MANAGEMENT DEVICE AND METHOD
    65.
    发明公开
    BATTERY MANAGEMENT DEVICE AND METHOD 审中-公开

    公开(公告)号：EP4231026A1

    公开(公告)日：2023-08-23

    申请号：EP22736799.2

    申请日：2022-01-04

    申请人： LG Energy Solution, Ltd.

    发明人： LIM, Bo Mi

    IPC分类号： G01R31/367 ,  G01R31/36 ,  G01R31/392 ,  G01R31/382 ,  G01R31/374 ,  H01M10/48 ,  H01M10/42

    摘要： A battery management apparatus can include a measuring unit configured to measure a voltage and a current of a battery cell, an analyzing unit configured to analyze correlations between a plurality of extraction methods for extracting a feature of the battery cell and an objective variable, and a determining unit configured to select at least one extraction method from among the plurality of extraction methods based on the correlations between the plurality of extraction methods and the objective variable.

    APPARATUS AND METHOD FOR DIAGNOSING BATTERY
    66.
    发明公开
    APPARATUS AND METHOD FOR DIAGNOSING BATTERY 审中-公开

    公开(公告)号：EP4206712A1

    公开(公告)日：2023-07-05

    申请号：EP21886615.0

    申请日：2021-10-12

    申请人： LG Energy Solution, Ltd.

    发明人： KIM, Jeong Wan

    IPC分类号： G01R31/392 ,  G01R31/389 ,  G01R31/367 ,  G01R31/396

    摘要： There is provided a battery diagnosis apparatus including a calculating unit configured to calculate degrees of aging of a battery cell and a battery module including the battery cell, a measuring unit configured to measure an alternating current (AC) impedance of a battery pack including the battery module, an estimating unit configured to estimate a state of health (SOH) of the battery pack based on the AC impedance of the battery pack, and a diagnosing unit configured to diagnose a state of the battery pack, based on the degree of aging of the battery cell, the degree of aging of the battery module, and the SOH of the battery pack.

    BATTERY DIAGNOSIS DEVICE, BATTERY SYSTEM, AND BATTERY DIAGNOSIS METHOD
    67.
    发明公开
    BATTERY DIAGNOSIS DEVICE, BATTERY SYSTEM, AND BATTERY DIAGNOSIS METHOD 审中-公开

    公开(公告)号：EP4202458A1

    公开(公告)日：2023-06-28

    申请号：EP22736867.7

    申请日：2022-01-06

    申请人： LG Energy Solution, Ltd.

    发明人： LEE, Hyun-Jun

    IPC分类号： G01R31/367 ,  G01R31/392 ,  G01R31/382 ,  G01R31/396

    摘要： A battery diagnosing apparatus according to the present disclosure includes: a voltage measuring circuit for generating a voltage signal representing a battery voltage that is a voltage across both ends of each of a plurality of batteries; a database in which a plurality of abnormal patterns, a plurality of reference time series, and a predetermined corresponding relationship between the plurality of abnormal patterns and the plurality of reference time series are recorded; and a control unit for generating a plurality of input time series representing a change history of the battery voltage of each of the plurality of batteries, based on the voltage signal. The control unit extracts an abnormal input time series representing an abnormal voltage behavior among the plurality of input time series by comparing the plurality of input time series with each other. The control unit identifies an abnormal pattern of the abnormal input time series among the plurality of abnormal patterns by comparing the abnormal input time series with the plurality of reference time series one by one.

    BATTERY MANAGEMENT APPARATUS AND METHOD
    68.
    发明公开
    BATTERY MANAGEMENT APPARATUS AND METHOD 审中-公开

    公开(公告)号：EP4198536A1

    公开(公告)日：2023-06-21

    申请号：EP22739738.7

    申请日：2022-01-13

    申请人： LG Energy Solution, Ltd.

    发明人： SONG, Yee-Gahng

    IPC分类号： G01R31/367 ,  G01R31/396 ,  G01R31/392 ,  G01R31/36

    摘要： A battery management apparatus according to an embodiment of the present disclosure includes: a battery information obtaining unit configured to obtain a plurality of battery information for a plurality of battery cells; and a control unit configured to calculate a whisker for the plurality of battery information based on a criterion distribution profile for a population of the plurality of battery cells, generate a box plot for the plurality of battery cells based on the plurality of battery information and the calculated whisker, and determine a state of each of the plurality of battery cells according to whether each of the plurality of battery information is included in a threshold region corresponding to the generated box plot.