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    BATTERY HEATING SYSTEM, BATTERY ASSEMBLY AND ELECTRIC VEHICLE
    1.
    发明公开
    BATTERY HEATING SYSTEM, BATTERY ASSEMBLY AND ELECTRIC VEHICLE 审中-公开
    BATTERIEERWÄRMUNGSSYSTEM，BATTERIEANORDANDNUNG UND ELEKTROFAHRZEUG

    公开(公告)号：EP3123554A4

    公开(公告)日：2017-05-31

    申请号：EP15815138

    申请日：2015-05-12

    Applicant: BYD CO LTD

    Inventor： SHEN XI ,  JIANG WENFENG ,  LIU JIN ,  JIA XIAOHUI

    IPC: H01M10/60 ,  B60H1/00 ,  B60K1/00 ,  B60L11/18 ,  H01M10/42 ,  H01M10/44 ,  H01M10/48 ,  H01M10/615 ,  H01M10/625 ,  H01M10/6571

    CPC classification number: H01M10/615 ,  B60H1/00278 ,  B60K2001/005 ,  B60K2001/006 ,  B60L11/1874 ,  B60L11/1875 ,  H01M10/4207 ,  H01M10/443 ,  H01M10/486 ,  H01M10/625 ,  H01M10/6571 ,  H01M2010/4271 ,  H01M2010/4278 ,  H01M2220/20

    Abstract: Embodiments of the present disclosure provide a battery heating system, a battery assembly and an electric vehicle. The battery heating system includes: a battery group having a positive terminal and a negative terminal; a switch having a first end connected with the positive terminal; a large-current discharge module, and a controller connected to the switch and configured to control the switch according to a temperature of the battery group. A first end of the large-current discharge module is connected to a second end of the switch, and a second end of the large-current discharge module is connected to the negative terminal. When the switch is turned on, the battery group discharges via the large-current discharge module and the battery group is heated due to an internal resistance thereof.

    Abstract translation: 本公开的实施例提供了一种电池加热系统，电池组件和电动车辆。 该电池加热系统包括：具有正极端子和负极端子的电池组; 开关，具有与正极连接的第一端; 大电流放电模块以及连接到所述开关并被配置为根据所述电池组的温度来控制所述开关的控制器。 大电流放电模块的第一端连接到开关的第二端，大电流放电模块的第二端连接到负端子。 当开关打开时，电池组通过大电流放电模块放电，并且电池组由于其内部电阻而被加热。

    MATERIALS FOR NEGATIVE ELECTRODES OF LITHIUM ION BATTERIES
    4.
    发明公开
    MATERIALS FOR NEGATIVE ELECTRODES OF LITHIUM ION BATTERIES 审中-公开
    材料的锂离子电池负极

    公开(公告)号：EP1782492A4

    公开(公告)日：2008-03-26

    申请号：EP05781756

    申请日：2005-08-16

    Applicant: BYD CO LTD

    Inventor： DONG JUNQING ,  JIANG WENFENG

    IPC: H01M10/40 ,  H01M4/40 ,  H01M4/58

    CPC classification number: H01M4/587 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/133 ,  H01M4/134 ,  H01M4/364 ,  H01M4/366 ,  H01M4/38 ,  H01M4/40 ,  H01M4/405 ,  H01M4/463 ,  H01M4/466 ,  H01M10/0525 ,  H01M2004/021 ,  Y10T428/2991

    Abstract: The present invention provides materials for negative electrodes of lithium rechargeable batteries. These materials include lithium alloy composites. Each lithium alloy composite has a core-shell structure with one or more lithium alloy granules as its core and a carbon material as its shell. The average granule diameter of said lithium alloy granule is between 5 ¦µm and 40¦ µm. The average thickness of the shell layer is between 50 Å and 1000 Å . The average diameter of said lithium alloy composite is between 10¦ µm to 50¦ µm. The methods of fabrication for said material includes the following steps: stirring lithium alloy granules in an organic solution with a coating substance, drying the solid product in said organic solution with a coating substance, calcining the dried product to obtain the negative electrode material with lithium alloy composites. The lithium alloy composites fabricated in this manner have lithium alloy granules as a core coated with a shell of carbon material. Lithium ion rechargeable batteries with a negative electrode of this invention or fabricated by the methods of this invention have excellent initial charge-discharge efficiency, battery capacity and cycle life.

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