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1.发明公开公开(公告)号：US20240337711A1
公开(公告)日：2024-10-10
申请号：US18627532
申请日：2024-04-05
发明人： Minako Terao , Kazuma Takenaka , Naoki Noguchi , Satoshi Yoshitake , Jun Okano , Yuki Tominaga , Kaoru Omichi , Yukiko Onoue
IPC分类号： G01R33/10
CPC分类号： G01R33/10
摘要： A battery identification system includes a sensor having a sensing surface and a plurality of magnetic elements arranged in or on the sensing surface, a meter configured to measure, using the plurality of magnetic elements, a magnetic field distribution on an outer surface of a battery with the sensing surface facing the outer surface of the battery, which includes a plurality of battery cells electrically connected to each other, and a computer configured to identify the type of the battery by comparing the magnetic field distribution measured by the meter with a reference magnetic field distribution, 10 with reference to reference data indicating the reference magnetic field distribution, and output information regarding the identified type of the battery, as battery information.
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公开(公告)号：US20240356340A1
公开(公告)日：2024-10-24
申请号：US18637703
申请日：2024-04-17
发明人： Jun Okano , Yukiko Onoue , Kaoru Omichi , Yuki Tominaga , Kazuma Takenaka , Minako Terao , Naoki Noguchi , Masahito Tsukano , Satoshi Yoshitake
IPC分类号： H02J7/00 , G01R31/382 , H01M10/48
CPC分类号： H02J7/00036 , G01R31/382 , H01M10/482 , H02J7/0013 , H02J7/0047 , H02J7/00712
摘要： A battery identification device for identifying a battery including a plurality of battery cells includes: a magnetic field measurer configured to measure a magnetic field which is generated by a current flowing in the battery; and a reader configured to read information on identity between both results which is determined by comparing a measurement result of the measured magnetic field with a prescribed value of magnetic field information correlated with the type of a battery.
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公开(公告)号：US20240353371A1
公开(公告)日：2024-10-24
申请号：US18637701
申请日：2024-04-17
发明人： Jun Okano , Yukiko Onoue , Yuki Tominaga , Kaoru Omichi , Kazuma Takenaka , Minako Terao , Naoki Noguchi , Masahito Tsukano , Satoshi Yoshitake
IPC分类号： G01N27/72
CPC分类号： G01N27/72
摘要： A battery identification device for identifying a tubular battery including a wound product in which electrodes are wound includes: a current applier configured to apply a current to the battery, a magnetic field measurer configured to measure a magnetic field generated with application of the current; and an acquirer configured to acquire a type of the battery which is determined by comparing the measurement result of the magnetic field measured by the magnetic field measurer with magnetic field information correlated with the type of battery.
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公开(公告)号：US20230120475A1
公开(公告)日：2023-04-20
申请号：US17960899
申请日：2022-10-06
发明人： Jun Okano , Tsubasa Uchida , Yuki Tominaga , Yukiko Onoue
IPC分类号： G01R31/382
摘要： Provided is a battery type determining device including: an output controller configured to instruct a current application circuit to apply a specific current to a battery having a current collector and a wound body or laminate; a magnetic field characteristic measurer configured to measure a magnetic field characteristic generated in the battery when the current is applied from the output controller; a storage unit configured to store a specified value of the magnetic field characteristic in accordance with a type of the battery; and a determiner configured to compare the specified value with a measured value of the magnetic field characteristic measurer to determine the type of the battery, wherein the magnetic field characteristic measurer measures a magnetic field generated by an electric current flowing through the current collector of the battery.
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公开(公告)号：US11977124B2
公开(公告)日：2024-05-07
申请号：US18113629
申请日：2023-02-24
发明人： Yuki Tominaga , Yurika Nishimoto
IPC分类号： G01R31/389 , G01R27/08
CPC分类号： G01R31/389 , G01R27/08
摘要： A measurement device including an impedance calculator configured to perform following processes S1 to S5 is provided: S1: preparing a Bode diagram; S2: extracting a peak from the Bode diagram; increasing the number of RC parallel circuits by +1, and fitting a mountain shape which is able to be represented by an RC parallel circuit centered on the peak; S3: subtracting a Bode diagram component which is able to be represented by the fitted RC parallel circuit from the Bode diagram of the measurement results; S4: ending identification of the number of RC parallel circuits when a peak is not extracted from the Bode diagram and repeating the processes (S2) and S(3) when a peak is extracted; and S5: reporting the total number of RC parallel circuits.
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公开(公告)号：US20230314525A1
公开(公告)日：2023-10-05
申请号：US18115797
申请日：2023-03-01
发明人： Tadashi Kaga , Yuki Tominaga , Mao Hori , Naoya Aida
IPC分类号： G01R31/392 , G01R31/396 , H01M10/48
CPC分类号： G01R31/392 , G01R31/396 , H01M10/48
摘要： A battery state measurement system includes a server device configured to analyze a state of a battery. The service device includes a communication unit configured to receive a plurality of pieces of characteristic data indicating characteristics associated with change of the battery state based on physical quantity data indicating a physical quantity associated with the battery state and a diagnosis unit configured to analyze a deterioration state of the battery on the basis of the plurality of pieces of characteristic data. The diagnosis unit analyzes the deterioration state of the battery through analysis of a dV/dQ curve indicating a rate of change of a voltage with respect to change of a reference capacity of the battery and repeatedly performs a process of calculating a negative-electrode value on the basis of an initial positive-electrode value in the dV/dQ curve and a cell value which is previous by one cycle and calculating a cell value on the basis of the initial positive-electrode value and the negative-electrode value.
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公开(公告)号：US20230286412A1
公开(公告)日：2023-09-14
申请号：US18113083
申请日：2023-02-23
发明人： Yuki Tominaga , Yurika Nishimoto
IPC分类号： B60L58/12
CPC分类号： B60L58/12 , B60L2240/549 , B60L2260/44
摘要： A control device includes a total characteristic value calculation part configured to calculate a total characteristic value showing a total characteristic change of a battery, a local characteristic value estimation part configured to estimate a local characteristic value showing a local characteristic change of the battery, and a current controller configured to control a current flowing to the battery on the basis of a ratio between the total characteristic value and the local characteristic value.
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公开(公告)号：US11994563B2
公开(公告)日：2024-05-28
申请号：US17504569
申请日：2021-10-19
发明人： Yuki Tominaga , Tsubasa Uchida
IPC分类号： G01R31/385 , G01R31/367 , H01M10/42 , H02J7/00
CPC分类号： G01R31/386 , G01R31/367 , H01M10/4221 , H02J7/00041
摘要： A battery type determination device according to an embodiment includes: an output controller configured to instruct a current application circuit to apply a specific current to a target battery; a voltage response measurer configured to measure a voltage response of the target battery with respect to the current applied using the output controller; a calculator configured to obtain an inductance value of the target battery on the basis of a current value applied using the output controller and a voltage value measured by the voltage response measurer; and a determiner configured to determine a type of the target battery on the basis of a specified value of an inductance according to the type of the target battery and an inductance value of the target battery obtained using the calculator.
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9.发明公开公开(公告)号：US20230318343A1
公开(公告)日：2023-10-05
申请号：US18113643
申请日：2023-02-24
发明人： Yuki Tominaga , Hikaru Arai
IPC分类号： H02J7/00 , G01R31/3842 , G01R31/36
CPC分类号： H02J7/007182 , H02J7/00714 , G01R31/3842 , G01R31/3648
摘要： An output control device for a lithium-ion battery includes: a voltage measuring unit configured to measure an output voltage of the lithium-ion battery; a current measuring unit configured to measure an output current of the lithium-ion battery; a storage unit configured to store measurement results from the voltage measuring unit and the current measuring unit; a calculation unit configured to calculate a voltage and a current which are to be output from the lithium-ion battery on the basis of the measurement results from the voltage measuring unit and the current measuring unit; and a control unit configured to perform feedback control of the output current and the output voltage of the lithium-ion battery on the basis of a calculation result from the calculation unit.
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公开(公告)号：US20230314518A1
公开(公告)日：2023-10-05
申请号：US18118166
申请日：2023-03-07
发明人： Yuki Tominaga , Yurika Nishimoto
IPC分类号： G01R31/367 , G01R31/36 , G01R31/385 , H02J7/00
CPC分类号： G01R31/367 , G01R31/3648 , G01R31/385 , H02J7/007182 , H02J7/00714
摘要： An output control device of a lithium ion battery includes an output control unit that controls an output of the lithium ion battery, and a computation unit that transmits a command to the output control unit, the computation unit calculates a distribution of a current and/or a potential within the electrode thickness of the negative electrode of the lithium ion battery by using a heterogeneous reaction model in the thickness direction of the electrode, and compares the distribution with a specified range in the negative electrode, and/or calculates a distribution of a current and/or a potential within the electrode thickness of the positive electrode of the lithium ion battery by using a heterogeneous reaction model in the thickness direction of the electrode, and compares the distribution with a specified range in the positive electrode, and transmits a command to the output control unit on the basis of a result of the comparison, and the output control unit controls an output voltage and/or an output current of the lithium ion battery on the basis of the command.
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