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.