论文标题
锂离子电池电极制造模型，占活性材料颗粒的3D逼真形状
Lithium Ion Battery Electrode Manufacturing Model Accounting for 3D Realistic Shapes of Active Material Particles
论文作者
论文摘要
市场对锂离子电池（LIB）的需求逐渐增长，每年产量增加。为了满足工业需求，必须开发旨在优化LIB制造过程的数字双胞胎。在这里，通过使用lini0.33co0.33mn0.33O2（NMC111）材料作为例如，我们将从X射线微型计算机中获得的活性材料的逼真粒子形状介绍到一个粗糙的分子动态物理模型中，以模拟slurry及其干燥元素的模型，以模拟slurry及其模型，以模拟元素，以模拟该模型的启用。该模型可以将制造参数与电极的微观结构联系起来，并更好地观察前者对电极异质性的影响。模拟的结果使我们能够观察到在制造过程中电极异质性的改变，以及活性材料的二级颗粒的轻微变形。
The demand for lithium ion batteries (LIBs) on the market has gradually risen, with production increasing every year. To meet industrial needs, the development of digital twins designed to optimize LIB manufacturing processes is essential. Here, by using LiNi0.33Co0.33Mn0.33O2 (NMC111) material as an example, we introduce the realistic particles shapes of the active material obtained from X-ray micro-computed tomography into a Coarse-Grained Molecular Dynamic physical model to simulate the slurry and its drying, and into a Discrete Element Method model able to simulate the calendering of the resulting electrode. This model enables to link the manufacturing parameters with the microstructure of the electrodes and to better observe the effect of the former on the heterogeneity of the electrodes. The results of the simulations allow us, among others, to observe the alteration of the electrode heterogeneity during the manufacturing process and the slight deformation of the secondary particles of active material.
