公开(公告)号：EP3422441A1

公开(公告)日：2019-01-02

申请号：EP16891202.0

申请日：2016-08-30

Applicant: BYD Company Limited

Inventor： HU, Shichao ,  ZHU, Yan

IPC: H01M2/34 ,  H01M10/44

Abstract: The present invention relates to the field of batteries, and in particular, to a single cell, a battery module, a battery pack, and an electric vehicle. The single cell includes a case, a battery cell, an electrode terminal, and a cover plate. The electrode terminal includes a battery post. The single cell further includes a current interrupt device electrically connected to the electrode terminal. The current interrupt device has a conductive member and a flipping member connected to the conductive member for mutual electrical connection. The conductive member is connected to an outer end surface of the battery post. A ceramic ring is tightly connected between an outer periphery of the flipping member and the cover plate. The outer periphery of the flipping member is tightly connected to an outer end surface of the ceramic ring. An outer periphery of the battery post is connected to an inner end surface of the ceramic ring. The battery post is insulated from the outer periphery of the flipping member by using the ceramic ring. This can withstand passing through of a high current, and when the battery is overcharged (or when an emergency situation of charging/discharging the battery occurs), a circuit can be forcibly disconnected, to prevent a danger such as a battery explosion from occurring.

公开(公告)号：EP3422440A1

公开(公告)日：2019-01-02

申请号：EP16891201.2

申请日：2016-08-30

Applicant: BYD Company Limited

Inventor： LU, Peng ,  JIANG, Luxia ,  HU, Shichao ,  ZHU, Jianhua ,  ZHU, Yan

IPC: H01M2/34 ,  H01M2/12

Abstract: The present invention discloses a single cell, a battery module, a power battery, and an electric vehicle. The single cell (4100) includes a case, a battery cell accommodated in the case, an electrode terminal (4101) electrically connected to the battery cell, and a cover plate (4102) for encapsulating the case. The electrode terminal (4101) is disposed in the cover plate (4102). The electrode terminal includes a battery post (4104) passing through the cover plate (4102) and electrically connected to the battery cell by using an internal guide member (4196). The single cell further includes a current interrupt device (4200) mounted in the battery post (4104). The current interrupt device (4200) has a flipping member (4202) in communication with gas inside the case. The flipping member (4202) is connected to an outer end surface of the battery post (4104) by using a connection point. The connection point can be disconnected under action of air pressure.

公开(公告)号：EP2939306A1

公开(公告)日：2015-11-04

申请号：EP13867706.7

申请日：2013-09-12

Applicant: Byd Company Limited

Inventor： SHEN, Xi ,  JIANG, Luxia ,  ZHU, Jianhua ,  HU, Shichao ,  WANG, Gaowu ,  GU, Hongjuan

IPC: H01M10/0525 ,  H01M10/42 ,  H01M2/34

CPC classification number: H01M2/34 ,  H01M10/0413 ,  H01M10/0431 ,  H01M10/0463 ,  H01M10/0525 ,  H01M10/0585 ,  H01M10/0587 ,  H01M10/617 ,  H01M10/654 ,  H01M10/6553 ,  H01M2200/00 ,  H01M2220/20 ,  Y02E60/122 ,  Y02P70/54

Abstract: A battery includes a shell, a core and a protection component received in the shell. The core includes a first electrode tab connected to a first current collector and a second electrode tab connected to a second current collector of the core. The protection component includes two insulating layers and a conducting layer disposed between two insulating layers. The conducting layer defines a first end electrically connected to the first electrode tab and a second end configured as a free end, and an outmost current collector of the core is configured by the second current collector.

Abstract translation: 一种电池包括：外壳（1）; （1）中并且具有第一和第二电极接线片（41,42），连接到第一电极接线片（41）的第一集流体和连接到第二电极接线片（41）的第二集流体的芯（4） （42）; 和包括两个绝缘层（22）和设置在两个绝缘层（22）之间的导电层（21）的保护部件（2），其中导电层（21）限定了电连接到第一电极接线片 41）以及构造为自由端的第二端，并且所述芯（4）的最外面的集电器由所述第二集电器构成。