The utilization of large-format cylindrical lithium-ion cells with innovative tab design has been confirmed by a number of automotive manufacturers for future vehicle generations. The cell dimensions and housing materials are however widely discussed and will vary depending on the application and vehicle class. In this study, geometrical models are developed that describe the properties of the cells structural components with regard to certain defining loadcases. The volume efficiency and energy density as a function of cell dimensions and housing material choices are explored. A thermo-electrical-electrochemical modeling framework is used to generate a deep understanding of the investigated variables on the key characteristics of fast-charging processes. A 3-stage coolant flow controlling procedure is proposed that ensures the best possible performance for all dimensions and material choices and enables a consistent basis for meaningful comparisons. Results show that cells with aluminum housings provide slightly less volumetric energy density of 3% - 4% compared to nickel plated steel housings while providing 9% - 11% more gravimetric energy density. The fast-charging performance of a 4695 cell with bottom cooling can be optimized by 15% from 13 min 45 s to 11 min 45 s when introducing an aluminum housing due to less heat generation and less thermal resistance in axial direction. The electrical and thermal resistances imposed by the connection between the tabless jelly roll and the cell ends are identified as having significant influence on the cells performance as a function of dimensions.

许多汽车制造商已经证实，未来几代汽车将采用具有创新极耳设计的大尺寸圆柱形锂离子电池。然而，电池尺寸和外壳材料被广泛讨论，并将根据应用和车辆类别而有所不同。在这项研究中，开发了几何模型来描述单元格结构组件在某些定义负载情况下的特性。探讨了体积效率和能量密度作为电池尺寸和外壳材料选择的函数。热-电-电化学建模框架用于对快速充电过程的关键特征所研究的变量产生深刻的理解。提出了一种 3 级冷却剂流量控制程序，以确保所有尺寸和材料选择的最佳性能，并为有意义的比较提供一致的基础。结果表明，与镀镍钢外壳相比，铝外壳电池的体积能量密度略低，为 3% - 4%，而重量能量密度则高出 9% - 11%。底部冷却的 4695 电池的快速充电性能可以优化 15%，从 13 分 45 秒到 11 分 45 秒，当引入铝制外壳时，由于产生的热量更少，轴向热阻也更小。由 tablesless 果冻卷和电池端部之间的连接施加的电阻和热阻被确定为对电池性能具有显着影响的尺寸函数。