公开(公告)号：US11456512B2

公开(公告)日：2022-09-27

申请号：US16626829

申请日：2018-05-28

Applicant: BYD COMPANY LIMITED

Inventor： Xinyue Wang ,  Luxia Jiang ,  Shichao Hu ,  Peng Lu ,  Han Cheng ,  Keli Yang

IPC: H01M50/531 ,  H01M50/116 ,  H01M50/342 ,  H01M50/147 ,  H01M50/578 ,  H01M50/572 ,  H01M50/545 ,  H01M50/30 ,  H01M50/204 ,  H01M50/574 ,  H01M50/583 ,  H01M50/16 ,  H01M50/383 ,  H01M50/20 ,  H01M50/543 ,  H01M50/317

Abstract: A battery cover plate assembly includes a cover plate, an electrode terminal, a current interrupt structure, and an arc extinguishing portion. The electrode terminal is disposed on the cover plate and includes an electrode inner terminal and an electrode outer terminal. The electrode inner terminal and the electrode outer terminal are electrically connected through the current interrupt structure. The current interrupt structure is capable of disrupting the electrical connection between the electrode inner terminal and the electrode outer terminal under the action of a gas pressure. The arc extinguishing portion is configured to reduce an electric arc generated when the current interrupt structure disrupts the electrical connection between the electrode inner terminal and the electrode outer terminal. When the electrical connection between the electrode inner terminal and the electrode outer terminal is disrupted, an arcing effect is generated due to high voltages at positive and negative electrodes of the battery.

公开(公告)号：US10804522B2

公开(公告)日：2020-10-13

申请号：US16110548

申请日：2018-08-23

Applicant: BYD COMPANY LIMITED

Inventor： Peng Lu ,  Luxia Jiang ,  Shichao Hu ,  Jianhua Zhu ,  Yan Zhu

IPC: H01M2/34 ,  B60L50/64 ,  H01M2/04 ,  H01M2/26 ,  H01M2/12

Abstract: The present disclosure discloses a single-cell battery, a battery module, a power battery, and an electric vehicle. The single-cell battery includes a case, a battery cell accommodated in the case, an electrode terminal electrically connected to the battery cell, and a cover plate for sealing the case. The electrode terminal is disposed on the cover plate. The electrode terminal includes a battery post passing through the cover plate and electrically connected to the battery cell with an internal guide member. The single-cell battery further includes a current interruption device mounted on the battery post. The current interruption device includes a flipping member in communication with gas inside the case. The flipping member is connected to an outer end surface of the battery post with a connection point. The connection point is configured to be disconnected under action of air pressure.

公开(公告)号：US09941505B2

公开(公告)日：2018-04-10

申请号：US14655537

申请日：2013-09-12

Applicant: BYD COMPANY LIMITED

Inventor： Xi Shen ,  Luxia Jiang ,  Jianhua Zhu ,  Shichao Hu ,  Gaowu Wang ,  Hongjuan Gu

IPC: H01M2/34 ,  H01M10/04 ,  H01M10/0525 ,  H01M10/6553 ,  H01M10/654 ,  H01M10/617 ,  H01M10/0585 ,  H01M10/0587

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.