公开(公告)号：US20250079596A1

公开(公告)日：2025-03-06

申请号：US18952384

申请日：2024-11-19

Applicant: BYD COMPANY LIMITED

Inventor： Long Wan ,  Qingbo Peng ,  Zhijia Tan ,  Song Lei ,  Shenglin Yang

IPC: H01M50/231 ,  H01M50/224 ,  H01M50/229 ,  H01M50/242 ,  H01M50/249

Abstract: A battery protection bottom plate, a composite protection structure for a battery pack, and a vehicle are provided. The battery protection bottom plate includes an upper fiber-reinforced resin layer, a metal plate and a lower fiber-reinforced resin layer. The metal plate is located between the upper fiber-reinforced resin layer and the lower fiber-reinforced resin layer. The upper fiber-reinforced resin layer and the lower fiber-reinforced resin layer meet the following conditions: 0.4≤d2/d1≤2, and d1 is a thickness of the lower fiber-reinforced resin layer measured in mm, and d2 is a thickness of the upper fiber-reinforced resin layer measured in mm.

公开(公告)号：US12230821B2

公开(公告)日：2025-02-18

申请号：US17777938

申请日：2020-10-22

Applicant: BYD COMPANY LIMITED

Inventor： Long He ,  Huajun Sun ,  Yan Zhu ,  Liangwen Tan ,  Long Wan

IPC: H01M50/209 ,  B60L50/64 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6555 ,  H01M50/218 ,  H01M50/264 ,  H01M50/291

Abstract: A battery pack includes a housing having a bottom surface and a top surface and a battery assembly in the housing. The battery assembly includes structural reinforcing members and cell sequences formed by connecting multiple cells. An outer surface of the cell includes a bottom surface, a top surface, first and second lateral surfaces. The bottom surface of the cell faces the bottom surface of the housing, and the top surface of the cell faces the top surface of the housing. The first lateral surface has a largest area. The multiple cells are arranged with second lateral surfaces thereof facing each other to form a cell sequence, and the structural reinforcing members are fixedly bonded with first lateral surfaces of cells in the cell sequence. The battery assembly is supported in the housing by the bottom surface of the housing.