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    Systems and methods for providing a distributed battery architecture
    2.
    发明授权
    Systems and methods for providing a distributed battery architecture 有权

    公开(公告)号：US12081059B1

    公开(公告)日：2024-09-03

    申请号：US17577352

    申请日：2022-01-17

    Applicant: Meta Platforms Technologies, LLC

    Inventor： Sachin Ramesh Chandra ,  Karthik Kadirvel ,  Ankur Gupta

    IPC: H02J7/00

    CPC classification number: H02J7/00712 ,  H02J7/0013 ,  H02J7/0063

    Abstract: The disclosed system may include multiple electronic components and multiple charger battery modules. Each charger battery module may include: at least one battery configured to drive at least one of the electronic components, at least one battery charger configured to charge the battery, and a microcontroller configured to control the charging and discharging of the battery. The system may also include a central controller that may be configured to control the various charger battery modules through each charger battery module's associated microcontroller. Various other methods, systems, and computer-readable media are also disclosed.

    BATTERY ANOMALY DETECTION SYSTEM
    5.
    发明公开
    BATTERY ANOMALY DETECTION SYSTEM 审中-公开

    公开(公告)号：US20240072548A1

    公开(公告)日：2024-02-29

    申请号：US18229625

    申请日：2023-08-02

    Applicant: Meta Platforms Technologies, LLC

    Inventor： Karthik Kadirvel ,  Ankur Gupta ,  Eugene Kropp

    IPC: H02J7/00 ,  G01R31/389 ,  H01M50/569

    CPC classification number: H02J7/0029 ,  G01R31/389 ,  H01M50/569

    Abstract: For electronic devices that have an electrically conductive surface across a gap from a battery enclosure, the described circuit may be used to detect an anomalous event. The circuit may connect the battery enclosure to ground and may include a switch that operably connects the electrically conductive surface to ground or, upon actuation of the switch, to a portion of the circuit including a resistor. In an anomaly detection mode, the switch is controlled to disconnect the surface from ground and to connect the surface to a resistance measurement channel and a resistor that is connected to the sub-circuit and ground. The system may determine an impedance across the resistor and may use the measured impedance to detect and/or classify an anomalous event.

    SYSTEMS AND METHODS FOR PROTECTING BATTERIES
    8.
    发明申请
    SYSTEMS AND METHODS FOR PROTECTING BATTERIES 有权

    公开(公告)号：US20230096836A1

    公开(公告)日：2023-03-30

    申请号：US17675733

    申请日：2022-02-18

    Applicant: Meta Platforms Technologies, LLC

    Inventor： Karthik Kadirvel ,  Sachin Ramesh Chandra ,  Ankur Gupta

    IPC: H02J7/34 ,  H02J7/00 ,  H01M10/0525 ,  H01M10/44

    Abstract: The disclosed computer-implemented method may include (i) detecting a battery condition of a wearable battery-operated device that indicates a threat to a battery's health and (ii) in response to detecting the battery condition, performing a battery-protection action by initiating a reverse power flow across a bidirectional connection from the wearable battery-operated device to a portable charging case that is designed to charge the wearable battery-operated device. Various other methods, systems, and computer-readable media are also disclosed.

    Battery pack architecture for parallel connection of cells
    9.
    发明授权
    Battery pack architecture for parallel connection of cells 有权

    公开(公告)号：US11431042B2

    公开(公告)日：2022-08-30

    申请号：US17014861

    申请日：2020-09-08

    Applicant: META PLATFORMS TECHNOLOGIES, LLC

    Inventor： Karthik Kadirvel ,  Jason Howard ,  Michael Xingyi Yu ,  Bryan W. Fan

    IPC: H01M10/637 ,  H01M10/04 ,  H01M10/0583

    Abstract: A battery system includes a plurality of battery cells connected in parallel. Each battery cell includes a positive and negative tab. The battery system also includes a plurality of thermal switch devices (e.g., temperature cut off (TCO) or positive temperature coefficient (PTC) devices). Each thermal switch device is electrically coupled to a respective cell. The battery system further includes a rigid-flex circuit board comprising a plurality of rigid regions. Each rigid region is physically and electrically connected to an adjacent rigid region by a respective flexible region. Each rigid region is electrically coupled to respective positive and negative tabs of a respective battery cell. Each thermal switch device prevents abnormal current flow (e.g., by limiting the flow of current at high temperatures) between a first battery cell that is coupled to the thermal switch device and a second battery cell that is adjacent to the first battery cell.

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