磷酸铁锂软包电池模组碰撞挤压安全性实验  

Test of crash extrusion safety of LFP pouch cell module

作　　者：鲁恒飞 朱世淋 田晓薇 何帆 LU Hengfei;ZHU Shilin;TIAN Xiaowei;HE Fan(Hefei GuoXuan High-tech Power Energy Co.,Ltd.,Hefei Anhui 230066,China)

机构地区：[1]合肥国轩高科动力能源有限公司,安徽合肥230066

出　　处：《电源技术》2022年第10期1136-1138,共3页Chinese Journal of Power Sources

摘　　要：采用一款磷酸铁锂软包电池模组,参照国标和某汽车集团电池模组挤压测试要求,对电池模组X、Y、Z方向进行挤压实验。第一次正向(Y向)挤压实验,电池模组前端板挤压失效。通过有限元仿真优化和加强模组端板结构,第二次模组Y向挤压实验通过。分析第一次和第二次Y向挤压实验数据,发现电池模组存在一定的安全边界。按照轻量化设计要求,对加厚的前端板又进行部分结构优化,进行第三次Y向挤压实验,也顺利通过。A LFP pouch cell module was introduced.Based on battery system national standard test and the cell module extrusion test requirements of one Automobile Group,all directions of X/Y/Z of the pouch cell modules extrusion experiments were applied.In the first extrusion experiment,the failure reason of extrusion in the positive Y direction was analyzed.Then the end plate structure of the module was optimized and strengthened accordingly.The second module forward extrusion experiment was passed.It was found that there was a certain safety boundary for the cell module.According to the lightweight requirements of cell module,the thickened front end plate was partially thinned and reduced.Finally,the third forward extrusion experiment passed.

关 键 词：磷酸铁锂软包电池模组 正向挤压 模组端板 轻量化 

分 类 号：TM912[电气工程—电力电子与电力传动]