公开(公告)号：US20250070369A1

公开(公告)日：2025-02-27

申请号：US18943542

申请日：2024-11-11

Applicant: BYD COMPANY LIMITED

Inventor： Xinyue WANG ,  Wansong Yuan ,  Han Cheng ,  Qiu Pan ,  Kai Li

IPC: H01M50/325

Abstract: A vehicle has a battery pack. The battery pack includes batteries or a battery module. The battery module includes batteries. Each battery includes a battery casing and an explosion-proof valve. The explosion-proof valve is arranged on the battery casing. The explosion-proof valve is provided with a notch groove. The explosion-proof valve includes an opening area. In the depth direction of the notch groove, the shape of the orthographic projection of the opening area is non-circular. The outer edge of the orthographic projection of the opening area is a preset opening boundary, the area of the orthographic projection of the opening area being S1, the area of the orthographic projection of the explosion-proof valve being S, S1 and S meeting: S1/S≥3, and the units of S1 and S both being mm2.

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：US20250023166A1

公开(公告)日：2025-01-16

申请号：US18902470

申请日：2024-09-30

Applicant: BYD COMPANY LIMITED

Inventor： Xinyue Wang ,  Wansong Yuan ,  Kai Li ,  Cuicui Wang

IPC: H01M50/184 ,  B60R16/04 ,  H01M50/103 ,  H01M50/119 ,  H01M50/176 ,  H01M50/188 ,  H01M50/548

Abstract: A battery, a battery pack, and a vehicle. The battery comprises: a battery casing; lead-out pieces and conductive pillars, the lead-out pieces being arranged in the battery casing, via holes allowing the conductive pillars to pass through being formed in the battery casing, the inner end of each conductive pillar being connected to a lead-out piece, and the outer end of each conductive pillar extending out of the battery casing; and sealing rings, the sealing rings being in sealed connection between the conductive pillars and the battery casing, the sealing rings being constructed to be elastic pieces, the initial size of each sealing ring in the axial direction thereof being d1, the size of each sealing ring compressed in the axial direction thereof being d2, and d1 and d2 meeting: 0.5≤d2/d1≤0.9.

公开(公告)号：US20250023207A1

公开(公告)日：2025-01-16

申请号：US18898747

申请日：2024-09-27

Applicant: BYD COMPANY LIMITED

Inventor： Wansong Yuan ,  Xinyue Wang ,  Han Cheng ,  Qiu Pan

IPC: H01M50/54 ,  H01M50/533

Abstract: A battery, a battery pack, and a vehicle. The battery comprises: a battery casing; a pole core, arranged in the battery casing; and a positive electrode lead-out piece and a negative electrode lead-out piece, the positive electrode lead-out piece comprising a positive-electrode first connecting sheet, the negative electrode lead-out piece comprising a negative-electrode first connecting sheet, and the positive-electrode first connecting sheet and the negative-electrode first connecting sheet being distributed at two opposite ends of the pole core in the length direction of the battery casing. The distance between the positive-electrode first connecting sheet and the negative-electrode first connecting sheet in the length direction of the battery casing is L1, the size of the battery in the length direction of the battery casing is L, and L1 and L meet: 0.95≤L1/L≤0.99.