动力电池系统结构优化与安全设计研究OA

With the rapid development of new energy vehicles,the power battery,as the energy source of the vehicle's"three-electric"systems,has drawn increasing attention to its structural design and safety.This paper systematically elaborates on various aspects of power battery systems,including structural optimization,lightweight design,module configuration,thermal management,and safety protection strategies.It analyzes common battery grouping schemes and their efficiency comparisons,and introduces the role of new technologies such as Cell-to-Pack(CTP)in improving space utilization and energy density.The study discusses module design and thermal management,lightweight materials and structural optimization strategies,as well as safety designs in mechanical,electrical,and thermal runaway aspects in compliance with the latest national standard requirements(e.g.,GB38031-2025 stipulates that no fire or explosion should occur within 2 hours after thermal runaway).Finally,future technological trends and challenges are discussed to provide insights into enhancing the safety and performance of power batteries.