公开(公告)号：US20210066700A1

公开(公告)日：2021-03-04

申请号：US17040409

申请日：2019-01-22

Applicant: BYD COMPANY LIMITED

Inventor： Xinyue WANG ,  Han CHENG ,  Keli YANG ,  Luxia JIANG ,  Lingyi PENG

IPC: H01M2/34 ,  H01M2/24 ,  H01M10/38 ,  H01M2/04

Abstract: A battery cell includes: a housing; a cover plate located at an end of the housing; a pole core located in the housing and having an electrode tab electrically connected to a conductive terminal disposed on the cover plate; an inner spacer including a bottom plate disposed on a surface of the pole core facing the cover plate, an end of a connecting plate connected to an edge of the bottom plate and formed in a bent shape with an edge of the bottom plate, and a support plate connected to another end of the connecting plate formed in a bent shape with the support plate and extending from the bottom plate. A part of the electrode tab extends from a surface of the support plate facing the pole core to a surface away from the pole core.

公开(公告)号：US20200343491A1

公开(公告)日：2020-10-29

申请号：US16956997

申请日：2018-12-19

Applicant: BYD COMPANY LIMITED

Inventor： Luxia JIANG ,  Han CHENG ,  Jiangtao ZHOU ,  Keli YANG

IPC: H01M2/04 ,  H01M2/34 ,  H01M10/04

Abstract: A battery cover plate assembly, a cell, a battery module, a power battery, and an electric vehicle are provided. The battery cover plate assembly includes a cover plate, an inner lead-out member, and an outer electrode terminal. The inner lead-out member and the outer electrode terminal are electrically connected by using a current interrupt apparatus. A flipping member of the current interrupt apparatus is electrically connected to the outer electrode terminal. A score member is electrically connected to the inner lead-out member. A score is formed on the score member and is electrically connected to the flipping member. The inner lead-out member is mounted on the cover plate through a cover plate insulator. The cover plate insulator has a first engagement portion engaged with the cover plate and a second engagement portion engaged with the inner lead-out member.

公开(公告)号：US20210050581A1

公开(公告)日：2021-02-18

申请号：US16963113

申请日：2019-01-10

Applicant: BYD COMPANY LIMITED

Inventor： Peng LU ,  Luxia JIANG ,  Xinyue WANG ,  Keli YANG

IPC: H01M2/30 ,  H01M2/10

Abstract: A battery, a battery pack, and a vehicle are disclosed. The battery includes a housing having a sealed chamber, a core packaged in the sealed chamber, and a first terminal and a second terminal respectively mounted to the housing, where the first terminal is electrically connected to the housing, and the second terminal is insulated from the housing. The battery further includes a first tab and a second tab respectively led out from the core, the first tab being electrically connected to the housing, the first tab being electrically connected to the first terminal through the housing, and the second tab being electrically connected to the second terminal.

公开(公告)号：US20200168884A1

公开(公告)日：2020-05-28

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: H01M2/26 ,  H01M2/02 ,  H01M2/12 ,  H01M2/10

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.