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    Low-Emission Cylindrical-Winding Battery Design
    1.
    发明公开
    Low-Emission Cylindrical-Winding Battery Design 审中-公开

    公开(公告)号：US20240204239A1

    公开(公告)日：2024-06-20

    申请号：US18593008

    申请日：2024-03-01

    Applicant: Google LLC

    Inventor： Jianmin Zhang ,  Mingfeng Xue ,  Chi Kin Benjamin Leung ,  Ramesh C. Bhardwaj ,  Sheba Devan

    IPC: H01M10/04 ,  H01M50/497

    CPC classification number: H01M10/0431 ,  H01M50/497

    Abstract: The present document describes a low-emission cylindrical-winding battery design. The battery design is a rolled and stacked battery, with two or more winding rolls of cathode and anode layers separated by insulation layers, the winding rolls also being separated by a distance with the distance, in some embodiments, filled with a dielectric material. A first winding roll of first stacked anode and cathode layers and a second winding roll of second stacked anode and cathode layers are wound in a direction around a central axis of the battery. The first winding roll of first stacked anode and cathode layers follows a first stacking order with the anode and cathode layers alternating. The second winding roll of second stacked anode and cathode layers follows a second stacking order with the anode and cathode layers alternating opposite to the first stacking order. The alternating stacking orders cause the battery to produce a reduced H-field when compared with a battery having non-alternating stacking orders.

    Solid state batteries made on a mobile computing device
    2.
    发明授权
    Solid state batteries made on a mobile computing device 有权

    公开(公告)号：US10770692B1

    公开(公告)日：2020-09-08

    申请号：US14823050

    申请日：2015-08-11

    Applicant: Google LLC

    Inventor： Ramesh C. Bhardwaj ,  Tai Sup Hwang

    IPC: H01M2/02 ,  H01M10/052 ,  H01M10/0562 ,  H01M4/64 ,  G06F1/16

    Abstract: An example system includes an enclosure of a mobile computing device, where the enclosure includes an external surface and an internal surface. The system also includes a lithium-based battery having a plurality of battery layers deposited on the external surface of the enclosure such that the enclosure is a substrate for the plurality of battery layers. The plurality of battery layers include at least (i) a first conductive layer plated on a portion of the external surface of the enclosure, where the first conductive layer is configured as a cathode current collector of the lithium-based battery, and (ii) a second conductive layer plated on a respective portion of the external surface of the enclosure, where the second conductive layer is configured as a portion of an anode current collector of the lithium-based battery.

    Low-Emission Cylindrical-Winding Battery Design
    4.
    发明申请
    Low-Emission Cylindrical-Winding Battery Design 有权

    公开(公告)号：US20250167310A1

    公开(公告)日：2025-05-22

    申请号：US19033274

    申请日：2025-01-21

    Applicant: Google LLC

    Inventor： Jianmin Zhang ,  Mingfeng Xue ,  Chi Kin Benjamin Leung ,  Ramesh C. Bhardwaj ,  Sheba Devan

    IPC: H01M10/0587 ,  H01M10/0525 ,  H01M50/497 ,  H01M50/531

    Abstract: The present document describes a low-emission cylindrical-winding battery design. The battery design is a rolled and stacked battery, with two or more winding rolls of cathode and anode layers separated by insulation layers, the winding rolls also being separated by a distance with the distance, in some embodiments, filled with a dielectric material. A first winding roll of first stacked anode and cathode layers and a second winding roll of second stacked anode and cathode layers are wound in a direction around a central axis of the battery. The first winding roll of first stacked anode and cathode layers follows a first stacking order with the anode and cathode layers alternating. The second winding roll of second stacked anode and cathode layers follows a second stacking order with the anode and cathode layers alternating opposite to the first stacking order. The alternating stacking orders cause the battery to produce a reduced H-field when compared with a battery having non-alternating stacking orders.

    Systems and methods for dynamic pulse charging
    8.
    发明授权
    Systems and methods for dynamic pulse charging 有权

    公开(公告)号：US11063458B1

    公开(公告)日：2021-07-13

    申请号：US14836529

    申请日：2015-08-26

    Applicant: Google LLC

    Inventor： Tai Sup Hwang ,  Ramesh C. Bhardwaj

    IPC: H02J7/00

    Abstract: This disclosure relates to systems and methods for charging a battery. An example embodiment may include a battery, a battery charger device and a controller. The controller is configured to cause the battery charger device to charge the battery with a plurality of pulses and rests. Each pulse includes a respective pulse duration and a respective pulse current. Each rest includes a respective rest duration. While in a first charge phase, the controller is configured to adjust at least one of: the respective pulse duration, the respective pulse current, or the respective rest duration based on at least one sample of a characteristic voltage of the battery. Subsequently, the controller is configured to initiate a second charging phase. The controller is further configured to cause the battery charger device to charge the battery according to a second charge waveform.

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