动力电池动态碰撞研究比对分析

Comparative Analysis of Dynamic Collision Study of Power Battery

新能源汽车在现实中存在较多的动态接触碰撞场景,而动力电池发生碰撞后存在较大的安全隐患,这也成为整车厂家和大众关注的焦点。目前针对该类动态碰撞损伤,对电池安全性的影响目前尚没有明确的标准。本研究基于新能源汽车典型碰撞场景,辨识动力电池碰撞模拟试验表征参量,开发能够动态接触碰撞场景的试验装置,通过对动力电池进行碰撞测试,分析动力电池在不同动态接触碰撞表征参量情况下的性能表现,为进一步研究动力电池动态碰撞规程和技术要求提供测试方法支持。

New energy vehicles have more dynamic contact collision scenarios in reality, and there are greater safety hazards after the collision of power batteries, which has also become the focus of vehicle manufacturers and the public. At present, there is no clear standard for the impact of this type of dynamic collision damage on battery safety. Based on the typical collision scenarios of new energy vehicles, this study identifies the power battery crash simulation test characterization parameters, develops a test device that can dynamically contact the collision scene, analyzes the performance of the power battery under different dynamic contact collision characterization parameters through the crash test of the power battery, and provides test method support for further research on the dynamic collision regulations and technical requirements of the power battery.