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    BATTERY SEPARATOR AND LITHIUM ION BATTERY AND PREPARATION METHOD OF SAME
    41.
    发明公开
    BATTERY SEPARATOR AND LITHIUM ION BATTERY AND PREPARATION METHOD OF SAME 审中-公开

    公开(公告)号：EP3490032A1

    公开(公告)日：2019-05-29

    申请号：EP17845213.2

    申请日：2017-08-15

    Applicant: BYD Company Limited

    Inventor： JIN, Lina ,  SHAN, Jun ,  HU, Gang ,  HE, Long

    IPC: H01M2/14

    Abstract: The present disclosure relates to the field of lithium-ion batteries, and discloses a battery separator and a lithium-ion battery, and preparation methods thereof. The battery separator includes a porous base membrane and a bonding layer attached to at least one side surface of the porous base membrane, wherein the bonding layer contains an acrylate crosslinked polymer and a styrene-acrylate crosslinked copolymer and/or a vinylidene fluoride-hexafluoropropylene copolymer, and the porosity of the bonding layer is 40-65%.

    POWER BATTERY PACK AND ELECTRIC VEHICLE
    42.
    发明公开
    POWER BATTERY PACK AND ELECTRIC VEHICLE 审中-公开

    公开(公告)号：EP4343942A2

    公开(公告)日：2024-03-27

    申请号：EP23220620.1

    申请日：2019-06-21

    Applicant: BYD Company Limited

    Inventor： HE, Long ,  SUN, Huajun ,  JIANG, Wenfeng ,  LU, Zhipei ,  ZHENG, Weixin ,  TANG, Jianglong ,  ZHU, Yan ,  WANG, Xinyue ,  HE, Kefeng

    IPC: H01M50/249

    Abstract: Provided are a power battery pack and an electric vehicle. The power battery pack includes: a pack body, where an accommodating space is defined in the pack body, the pack body is provided therein with at least one widthwise cross beam or lengthwise cross beam, the widthwise cross beam extends along a width direction of the power battery pack, the lengthwise cross beam extends along a length direction of the power battery pack, and the accommodating space is divided into a plurality of accommodating chambers by the at least one widthwise cross beam or lengthwise cross beam; and a plurality of cells, disposed in the pack body and directly arranged in the accommodating chambers, where at least one cell is arranged in each accommodating chamber to form a cell array. The power battery pack according to the embodiments of this application has advantages of high space utilization, large energy density, long battery life, high reliability, low costs, high quality, and the like.

    POWER BATTERY HEATING METHOD FOR ELECTRIC AUTOMOBILE, DEVICE, AND AUTOMOBILE
    43.
    发明公开
    POWER BATTERY HEATING METHOD FOR ELECTRIC AUTOMOBILE, DEVICE, AND AUTOMOBILE 审中-公开

    公开(公告)号：EP4155120A1

    公开(公告)日：2023-03-29

    申请号：EP21814346.9

    申请日：2021-05-25

    Applicant: BYD Company Limited

    Inventor： HE, Long ,  DENG, Linwang ,  FENG, Tianyu ,  LIU, Sijia

    IPC: B60L58/27 ,  B60L58/00 ,  B60L58/10 ,  B60L58/24 ,  H01M10/615 ,  H01M10/625 ,  H01M10/6571 ,  H01M10/637

    Abstract: The present disclosure discloses a power battery heating method and device for an electric vehicle and a vehicle. The method includes: acquiring a heating power demand of a power battery; acquiring power demand information of a driving module of the electric vehicle in real time, and determining a current heating power of the power battery according to the power demand information; acquiring a compensating heating current according to the heating power demand and the current heating power when the current heating power is less than the heating power demand; causing, during control of the driving motor to drive the electric vehicle into operation according to the power demand information by the motor controller, the motor controller to regulate a control current of the driving motor according to the compensating heating current, so that the driving motor outputs a high-frequency oscillation current equal to the compensating heating current; and causing the power battery to perform self-heating according to the high-frequency oscillation current outputted by the driving motor. According to the present disclosure, the high-frequency oscillation current outputted by the driving motor is increased to satisfy a self-heating demand of the power battery while it is ensured that the power demand information is satisfied, thereby improving the heating rate and efficiency.

    BATTERY, BATTERY MODULE, BATTERY PACK, AND ELECTRIC VEHICLE
    44.
    发明公开
    BATTERY, BATTERY MODULE, BATTERY PACK, AND ELECTRIC VEHICLE 审中-公开

    公开(公告)号：EP4084203A1

    公开(公告)日：2022-11-02

    申请号：EP21741556.1

    申请日：2021-01-04

    Applicant: BYD Company Limited

    Inventor： HE, Long ,  SUN, Huajun ,  HU, Shichao ,  YUAN, Wansong ,  ZHU, Yan

    IPC: H01M50/242

    Abstract: A battery, a battery module, a battery pack, and an electric vehicle are provided. The battery includes a metal shell (11) and a plurality of electrode core assemblies (12) sealed in the metal shell (11) and arranged in sequence. The electrode core assemblies (12) are connected in series. Each of the electrode core assemblies (12) includes at least one electrode core. The electrode core assemblies (12) are sealed in a packaging film (13). An air pressure between the metal shell (11) and the packaging film (13) is lower than an air pressure outside the metal shell (11). An air pressure inside the packaging film (13) is lower than the air pressure between the metal shell (11) and the packaging film (13).

    BATTERY SYSTEM AND ELECTRIC AUTOMOBILE
    46.
    发明公开
    BATTERY SYSTEM AND ELECTRIC AUTOMOBILE 审中-公开

    公开(公告)号：EP3726625A1

    公开(公告)日：2020-10-21

    申请号：EP18888794.7

    申请日：2018-12-13

    Applicant: BYD Company Limited

    Inventor： HE, Long ,  SHEN, Xi ,  JIANG, Luxia ,  JIANG, Wenfeng

    IPC: H01M2/34

    Abstract: A battery system and an electric vehicle are disclosed. The battery system includes at least one series circuit, a pouch battery and at least one first cell connected to the pouch battery in series being disposed in the series circuit, and a current interrupt device being disposed on the first cell; and the current interrupt device of the first cell being configured to interrupt an internal current of the first cell when at least one of the pouch battery and the first cell is abnormal.

    DUAL-GLASS PHOTOVOLTAIC CELL MODULE
    50.
    发明公开
    DUAL-GLASS PHOTOVOLTAIC CELL MODULE 审中-公开
    DOPPELGLAS-PHOTOVOLTAIKMODUL

    公开(公告)号：EP3089355A1

    公开(公告)日：2016-11-02

    申请号：EP14875670.3

    申请日：2014-08-15

    Applicant: BYD Company Limited

    Inventor： WANG, Shencun ,  SUN, Xiang ,  JIANG, Zhanfeng ,  HE, Long

    IPC: H02S30/10 ,  H01L31/048 ,  H01L31/052

    CPC classification number: H01L31/0488 ,  H01L31/0543 ,  H02S30/10 ,  H02S40/34 ,  Y02E10/52

    Abstract: A double-glass photovoltaic cell module includes: a body (1), where the body (1) includes a first glass layer (11), a first encapsulation layer (12), a cell group layer (13), a second encapsulation layer (14), and a second glass layer (15) that are sequentially disposed in a laminated manner, where outer edges of the first glass layer (11) and the second glass layer (15) exceed an outer edge of the cell group layer (13); a reflecting coating provided on the second glass layer (15); an end part sealing block, disposed between the first glass layer (11) and the second glass layer (15), and located at peripheries of the first encapsulation layer (12), the cell group layer (13), and the second encapsulation layer (14); a frame (6), encapsulated at a periphery of the body and having a notch (60); and a connection box (4), disposed at the notch (60).

    Abstract translation: 双玻璃光伏电池模块包括：主体（1），其中主体（1）包括第一玻璃层（11），第一封装层（12），单元组层（13），第二封装层 （14）和第一玻璃层（11）和第二玻璃层（15）的外边缘超过单元组层的外边缘的层叠方式依次设置的第二玻璃层（15） 13）; 设置在所述第二玻璃层（15）上的反射涂层; 设置在第一玻璃层（11）和第二玻璃层（15）之间并位于第一封装层（12），电池组层（13）和第二封装层（12）的周围的端部密封块 （14）; 框架（6），其封装在所述主体的周边并具有凹口（60）; 以及设置在所述凹口（60）处的接线盒（4）。

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