BATTERY MODULE AND SAFETY STRUCTURE THEREOF
    21.
    发明公开

    公开(公告)号:EP3883046A1

    公开(公告)日:2021-09-22

    申请号:EP20194803.1

    申请日:2020-09-07

    摘要: The disclosure is related the technical field of battery packaging, discloses a safety structure of the battery module and a battery module. A safety structure of a battery module includes: a guiding channel, one end of the guiding channel connects the safety valve of the battery cell, and the other end of the guiding channel connects the packaging housing of the battery module; a pressure releasing mechanism for discharging high-pressure fluid is provided at a position corresponding to the guiding channel on the packaging housing; and the guiding channel is provided corresponding to the safety valve. By using the safety structure, it is possible to solve the problem that, due to the lack a battery module-level guiding channel in current battery pack, a thermal runaway chain reaction occurs when the energy of a single cell is diffused caused by thermal runaway, thus improving security of battery.

    BATTERY PACK AND ELECTRIC VEHICLE
    25.
    发明公开

    公开(公告)号:EP4318781A3

    公开(公告)日:2024-04-10

    申请号:EP23214629.0

    申请日:2020-10-29

    摘要: The present disclosure provides a battery pack and an electric vehicle. The battery pack includes a sealed housing, and at least one housing structural beam and multiple electrode core strings electrically connected to one another located in the housing. The housing includes a housing body, including a top plate and a bottom plate arranged opposite to each other in a first direction. The structural beam is located between the top plate and the bottom plate, the at least one structural beam divides the interior of the housing into multiple accommodating cavities, the at least one structural beam is connected to the top plate and the bottom plate, and at least one electrode core string is provided in at least one accommodating cavity An atmospheric pressure in the accommodating cavity is lower than an atmospheric pressure outside the housing. A mounting portion is provided on the housing, and the mounting portion is configured to be connected and fixed to an external load. The electrode core string includes multiple electrode core assemblies sequentially disposed in a second direction and connected in series. The electrode core assembly is encapsulated in an encapsulation film. A length direction of the electrode core string extends in the second direction

    BATTERY PACK AND ELECTRIC VEHICLE
    26.
    发明公开

    公开(公告)号:EP4311008A3

    公开(公告)日:2024-04-10

    申请号:EP23214631.6

    申请日:2020-10-29

    摘要: The present disclosure provides a battery pack and an electric vehicle. The battery pack includes a sealed housing, and at least one housing structural beam and multiple electrode core strings electrically connected to one another located in the housing. The housing includes a housing body, including a top plate and a bottom plate arranged opposite to each other in a first direction. The structural beam is located between the top plate and the bottom plate, the at least one structural beam divides the interior of the housing into multiple accommodating cavities, the at least one structural beam is connected to the top plate and the bottom plate, and at least one electrode core string is provided in at least one accommodating cavity An atmospheric pressure in the accommodating cavity is lower than an atmospheric pressure outside the housing. A mounting portion is provided on the housing, and the mounting portion is configured to be connected and fixed to an external load. The electrode core string includes multiple electrode core assemblies sequentially disposed in a second direction and connected in series The electrode core assembly is encapsulated in an encapsulation film. A length direction of the electrode core string extends in the second direction

    BATTERY MODULE
    28.
    发明公开
    BATTERY MODULE 审中-公开

    公开(公告)号:EP4033592A1

    公开(公告)日:2022-07-27

    申请号:EP22153328.4

    申请日:2022-01-25

    摘要: The present invention relates to a battery module. The battery module according to the present invention includes a housing having an internal accommodation space; and a plurality of battery cells disposed in the internal accommodation space, in which the housing includes a weld joint in which a first base material of a first aluminum-based alloy and a second base material of a second aluminum-based alloy are welded, and at least a partial region of a bead surface of the weld joint is located inward with respect to a reference plane, with an imaginary plane, which connects an outer surface of the first base material and an outer surface of the second base material in contact with the weld joint, as the reference plane.

    BATTERY PACK, METHOD FOR MANUFACTURING SAME, AND VEHICLE

    公开(公告)号:EP4009429A1

    公开(公告)日:2022-06-08

    申请号:EP22152077.8

    申请日:2020-05-20

    摘要: The present invention relates to a battery pack, a method for manufacturing a battery pack and a vehicle. The battery pack includes a case assembly (1) including a case (11), a thermally conductive beam (12) and a temperature control component (13), the thermally conductive beam (12) being disposed in the case (11) and connected to the case (11), and the temperature control component (13) being disposed in a bottom region of the case (11); a thermally conductive cover (3) connected to the thermally conductive beam (12) and located above the thermally conductive beam (12) along a height direction of the battery pack, where the thermally conductive cover (3), the case (11) and the thermally conductive beam (12) enclose and form a first chamber (A); and a plurality of battery cells (2) integrally forming a battery assembly (20), the battery assembly (20) being disposed in the first chamber (A) and located above the temperature control component (13). Such a battery pack can change a temperature conduction path, reduce a temperature difference between upper and lower regions of a battery assembly, improve temperature uniformity of the battery assembly, and increase a service life of the battery pack.