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    BATTERY PACK
    2.
    发明公开
    BATTERY PACK 审中-公开

    公开(公告)号：US20240356130A1

    公开(公告)日：2024-10-24

    申请号：US18682901

    申请日：2022-09-08

    申请人： Panasonic Intellectual Property Management Co., Ltd.

    发明人： KEISUKE SHIMIZU

    IPC分类号： H01M50/213 ,  H01M10/613 ,  H01M50/367

    CPC分类号： H01M50/213 ,  H01M10/613 ,  H01M50/367 ,  H01M2220/20

    摘要： A battery pack includes a battery module and a pack case. The battery module includes a plurality of cylindrical batteries each including, at one end in a specified direction, a battery exhaust valve that opens in response to an increase in internal pressure; and a battery holder including a plurality of housing parts for the one ends of the cylindrical batteries in the specified direction to be inserted. The pack case houses the battery module and internally includes an exhaust passage for gas exhausted from at least one of the plurality of cylindrical batteries to be exhausted out of the pack case. Each of the plurality of housing parts includes a lid part facing the battery exhaust valve of a corresponding cylindrical battery. The lid part includes an opening cover part that creates a larger holder opening with a greater outside diameter than the battery exhaust valve, and the opening cover part includes a ring-shaped or incomplete ring-shaped outer periphery that is defined by a weak part with less strength than a part external to the opening cover part.

    INTEGRATED FILTERING SYSTEMS FOR TRACTION BATTERY PACKS
    6.
    发明公开
    INTEGRATED FILTERING SYSTEMS FOR TRACTION BATTERY PACKS 审中-公开

    公开(公告)号：US20240297404A1

    公开(公告)日：2024-09-05

    申请号：US18176709

    申请日：2023-03-01

    申请人： FORD GLOBAL TECHNOLOGIES, LLC

    发明人： Mohammadreza Eftekhari ,  Giriraj Srinivasan ,  Patrick Daniel Maguire ,  Brian Utley

    IPC分类号： H01M50/30 ,  H01M50/367

    CPC分类号： H01M50/394 ,  H01M50/367 ,  H01M2220/20

    摘要： Integrated filtering systems are provided for filtering battery vent byproducts (e.g., gases and/or effluent particulates) during battery thermal events of a traction battery pack. The filtering systems may include one or more filters integrated as part of a vent valve, a vent pipe, a pressure equalization device, and/or an array housing of the traction battery pack, and/or as part of a structure that is separate from the traction battery pack. The filter may be configured to filter a constituent element (e.g., carbon monoxide (CO), hydrogen fluoride (HF), etc.) of a gaseous mixture vented from a battery cell of the traction battery pack during a battery thermal event, thereby mitigating the potential for vent gas combustion. The filter may be further configured to control the escape of particulates to surrounding environments.

    Systems and methods for improved battery assemblies for EVTOL aircraft
    8.
    发明授权
    Systems and methods for improved battery assemblies for EVTOL aircraft 有权

    公开(公告)号：US12068498B1

    公开(公告)日：2024-08-20

    申请号：US18147760

    申请日：2022-12-29

    申请人： Archer Aviation, Inc.

    发明人： Alex Clarabut

    IPC分类号： H01M10/00 ,  H01M50/24 ,  H01M50/342 ,  H01M50/367 ,  H01M50/509

    CPC分类号： H01M50/3425 ,  H01M50/24 ,  H01M50/367 ,  H01M50/509

    摘要： This disclosure relates generally to high voltage power supply (HVPS) systems and battery assemblies for aircraft that use electrical propulsion systems. In one embodiment, an apparatus for safely venting battery cells in thermal runaway is provided. The apparatus includes: a mechanical support layer, the mechanical support layer configured to be attached to a battery assembly; and a vent flap layer attached to the mechanical support layer, the vent flap layer including vent flaps corresponding to battery cells in the battery assembly. Each vent flap includes one or more portions configured to deform to permit flow of gas from the battery cell corresponding to the vent flap.