公开(公告)号：US20250070584A1

公开(公告)日：2025-02-27

申请号：US18948751

申请日：2024-11-15

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Takayuki MIYAJIMA

IPC: H02J7/00 ,  G01R31/3835 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/0585 ,  H01M10/42 ,  H01M10/44 ,  H01M10/48

Abstract: A battery system comprising a controller and a solid-state lithium secondary battery, wherein the controller estimates an end part cathode potential Ve2 from a voltage relaxation amount ΔV2; the end part cathode potential Ve2 is a local potential of an end part of the cathode; and the voltage relaxation amount ΔV2 is generated by diffusion of, into the non-facing part of the anode, lithium transferred to the facing part of the anode from the cathode of the solid-state lithium secondary battery in a charged state, and wherein the controller controls execution and inexecution of charging of the solid-state lithium secondary battery so that the end part cathode potential Ve2 is equal to or less than a potential Vlimit at which a change in crystal structure of the cathode active material occurs.

公开(公告)号：US20250052826A1

公开(公告)日：2025-02-13

申请号：US18928821

申请日：2024-10-28

Applicant: Autel Intelligent Technology Corp., Ltd.

Inventor： Weilin WANG

IPC: G01R31/3835 ,  G01R19/165 ,  G01R31/367 ,  G01R31/396

Abstract: The present disclosure provides a power battery monitoring system and a method. The system includes a battery assembly, N monitoring assemblies and an upper monitoring platform. The N monitoring assemblies are connected in series with each other, and a first monitoring assembly is connected with the upper monitoring platform, wherein the number of sampling channels of each monitoring assembly is M. The power battery monitoring system can segment the battery cells; the number of the battery cells in each segment is M; the battery cells in each segment are connected with a same monitoring assembly; and the N monitoring assemblies acquire sampling data of the battery cells in this segment through the corresponding sampling channel, so as to realize the monitoring of the battery cells in this segment by the upper monitoring platform.

公开(公告)号：US12222398B2

公开(公告)日：2025-02-11

申请号：US18014285

申请日：2021-11-03

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Jung-Hyun Kwon

IPC: G01R31/3835 ,  H01M10/48 ,  H02J7/00

Abstract: Discussed is a sensing apparatus that can include a voltage measuring unit configured to measure a voltage of a battery when a power is supplied thereto, an environment information measuring unit configured to measure environment information for the battery when power is supplied thereto, a connector unit configured to output a first connection signal when connected to the battery and output a second connection signal when connected to an external battery management system (BMS), a power unit configured to supply power to at least one of the voltage measuring unit and the environment information measuring unit according to an operation mode, and a control unit configured to control the operation mode of the power unit based on which of the first connection signal and the second connection signal is received from the connector unit and residual amount information of the power unit.

公开(公告)号：US12210068B2

公开(公告)日：2025-01-28

申请号：US17581311

申请日：2022-01-21

Applicant: ECO STOR AS

Inventor： Trygve Burchardt

IPC: G01R31/392 ,  G01R31/367 ,  G01R31/3835 ,  G01R31/389 ,  H01M10/42 ,  H01M10/44 ,  H01M10/48 ,  H02J7/00

Abstract: Understanding a health status and expected remaining lifetime of an EV (electric vehicle) battery is important before repurposing the battery for second life applications. A device for connecting to an unopened EV battery pack via operable coupling to signal and power wiring is disclosed. The device enables access to diagnostic information from the unopened EV battery. The device measures cell and/or module voltages and currents within the battery pack for several different depths of discharge. A self-learning algorithm implemented by the diagnostic device, which uses historical data and diagnostic information from the battery pack, determines a condition of the battery and provide recommended operational conditions for future use of the battery. For example, a degradation slope and expected capacity loss over time can be determined based on measured variations of cell and/or modular voltages and subsequently used, with cell impedance data, to recommend an operational C-rate for the battery pack.

公开(公告)号：US20250030261A1

公开(公告)日：2025-01-23

申请号：US18511281

申请日：2023-11-16

Applicant: SHENZHEN ENEXEED NEW ENERGY CO., LTD.

Inventor： Yuqiang XIA ,  Liangxin YANG

IPC: H02J7/00 ,  G01R31/3835 ,  H01M10/44 ,  H01M10/48 ,  G01K3/00

Abstract: The present disclosure provides a method, device, computer apparatus, and readable storage medium for controlling a battery, belonging to the field of processing technology. The method includes obtaining a first initial adjustment factor and a second initial adjustment factor based on the current application scenario of the battery, and obtaining a target output voltage of the battery; monitoring an actual output voltage of the battery in real time; and adjusting, if the difference between the actual output voltage and the target output voltage is greater than a preset threshold, the first initial adjustment factor and/or the second initial adjustment factor based on the target output voltage and the actual output voltage, so as to make the difference between the actual output voltage and the target output voltage less than or equal to the preset threshold.

公开(公告)号：US12203997B2

公开(公告)日：2025-01-21

申请号：US18135072

申请日：2023-04-14

Applicant: Analog Devices International Unlimited Company

Inventor： Hemtej Gullapalli ,  Erfan Soltanmohammadi ,  Han Zhang ,  Michael W. O'Brien

IPC: G01R31/3835 ,  G01K7/02 ,  G01R31/367 ,  G01R31/374 ,  G01R31/378 ,  G01R31/389

Abstract: Sensors and methods for determining the state of charge of a battery are described. The state of charge is determined in some instances by applying a current perturbation having a frequency to the battery terminals, monitoring the response signal, and determining the phase of the response signal. The phase may be correlated to the state of charge of the battery, so that once the phase is determined, a determination of the state of charge of the battery may be made. In some situations, the state of charge may be used to determine the operating condition of a load connected to the battery. In some embodiments, the state of charge may be used to determine whether the battery is defective.

公开(公告)号：US20250020723A1

公开(公告)日：2025-01-16

申请号：US18350484

申请日：2023-07-11

Applicant: GM Global Technology Operations LLC

Inventor： Jun-mo Kang ,  Hanho Yun ,  Insu Chang

IPC: G01R31/367 ,  B60L50/60 ,  B60L58/12 ,  G01R31/3835

Abstract: A battery monitoring system for a vehicle includes a processor and a memory. The memory stores instructions for causing the processor to estimate a state of charge of a battery based on a current cell pressure of the battery while the state of charge of the battery is below a threshold state of charge and to estimate a state of charge of the battery based on a voltage output by the battery while the state of charge of the battery is greater than or equal to the threshold state of charge.

公开(公告)号：US12191658B2

公开(公告)日：2025-01-07

申请号：US18074902

申请日：2022-12-05

Applicant: ITRON NETWORKED SOLUTIONS, INC.

Inventor： Bruce Edwards

IPC: H02J7/00 ,  G01R31/367 ,  G01R31/3835 ,  H01M6/14 ,  H01M10/0525 ,  H01M10/44 ,  H01M10/48 ,  H01M16/00 ,  H02J7/14 ,  H02J7/34 ,  H02J13/00

Abstract: A battery-powered node includes a primary cell, a secondary cell, and a battery controller. The battery controller includes a current source that draws power from the primary cell to charge the secondary cell. The battery-powered node draws power from the secondary cell across a wide range of current levels. When the voltage of the secondary cell drops beneath a minimum voltage level, the current source charges the secondary cell at a constant current level and a charging signal is sent to the battery-powered node. When the voltage of the second cell exceeds a maximum voltage level, the current source stops charging the secondary cell and the charging signal is terminated. The battery-powered node records the amount of time the charging signal is active, which can be used to determine a battery depletion level for the primary cell. Battery replacement may then be efficiently scheduled based on the depletion level.

公开(公告)号：US20250004060A1

公开(公告)日：2025-01-02

申请号：US18271525

申请日：2022-12-13

Applicant: Honor Device Co., Ltd.

Inventor： Zhifang Li

IPC: G01R31/389 ,  G01R31/3835 ,  H02J7/00

Abstract: A method includes: obtaining an in-position status of a charger of the electronic device; turning off a first switch if the charger of the electronic device is in position, where the first switch is located between a load of the electronic device and a battery of the electronic device; and after the load is disconnected from the battery, detecting a change of an internal resistance of the battery to obtain an internal resistance test result.

公开(公告)号：US20250001961A1

公开(公告)日：2025-01-02

申请号：US18672480

申请日：2024-05-23

Applicant: NXP USA, INC.

Inventor： Nesrine Myriem Lounis ,  Thierry Dominique Yves Cassagnes ,  Orazio Pennisi ,  Juliette Angèle Vedelago

IPC: B60R21/017 ,  G01R31/3835 ,  G01R31/389

Abstract: The present invention relates to a device, which is configured to control a circuit arrangement, connected to an energy storage device, such that a predefined measurement current is caused to flow through the circuit arrangement and the energy storage device. The device may detect voltage values of the energy storage device at different times, while the measurement current is flowing, such that a healthy message of the energy storage device can be generated based on the detected voltages. The present invention also relates to a corresponding system and method.