公开(公告)号：US20250046942A1

公开(公告)日：2025-02-06

申请号：US18902375

申请日：2024-09-30

Applicant: BYD COMPANY LIMITED

Inventor： Huajun SUN ,  Xinyue Wang ,  Wansong Yuan ,  Yan Zhu ,  Pingan Duan

IPC: H01M50/342 ,  H01M50/249

Abstract: A vehicle has a battery pack. The battery pack includes a battery or a battery module. The battery includes a battery shell and an explosion-proof valve. The explosion-proof valve is arranged on the battery shell. The volume of the battery is V, and the unit of V is mm3. The explosion-proof valve is provided with a notch groove, and the explosion-proof valve has an opening region. In a depth direction of the notch groove, an outer edge of the orthographic projection of the opening region is a predetermined opening boundary, the area of the orthographic projection of the opening region is S, and the unit of S is mm2. S and V satisfy 0.3 mm−1≤(5000×S)/V≤6 mm−1.

公开(公告)号：US20250030094A1

公开(公告)日：2025-01-23

申请号：US18905208

申请日：2024-10-03

Applicant: BYD Company Limited

Inventor： Wansong YUAN ,  Xinyue Wang ,  Chong Chen ,  Pingan Duan ,  Da Zhang

IPC: H01M50/143 ,  H01M50/103 ,  H01M50/119 ,  H01M50/249 ,  H01M50/392 ,  H01M50/553

Abstract: A battery cell, a battery pack and a vehicle. The battery cell comprises: a housing, which is provided with an inner cavity, and a first side wall and a second side wall, which are opposite each other, wherein an inner wall surface of the second side wall is configured to have a recess, which is recessed in a direction facing away from the inner cavity, the recess forms an air exhaust passage in the inner cavity, and the second side wall is provided with an explosion-proof hole, which corresponds to the air exhaust passage in terms of position; a terminal, which is arranged on a side wall of the housing other than the second side wall; an explosion-proof valve, which is mounted on the second side wall and is used for covering the explosion-proof hole; and an electrode core, which is arranged inside the housing and is spaced apart from the explosion-proof hole.