A review on modeling of electro-chemo-mechanics in lithium-ion batteries
A review on modeling of electro-chemo-mechanics in lithium-ion batteries
复制标题
DOI：
10.1016/j.jpowsour.2018.12.011
复制
发表时间：
2019-02
影响因子：
9.2
通讯作者：
Ying Zhao;P. Stein;Yang Bai;Mamun Al-Siraj;Yangyiwei Yang;Bai-Xiang Xu
中科院分区：
文献类型：
--
作者：
Ying Zhao;P. Stein;Yang Bai;Mamun Al-Siraj;Yangyiwei Yang;Bai-Xiang Xu
对锂离子电池（LIB）的快速容量损失的研究已经突出了在充电/放电循环期间发生的丰富的机械现象领域，仅举几个例子，与非线性弹性、塑化、断裂、各向异性、结构不稳定性和相分离现象相结合的大变形。在过去的十年中，许多实验和理论研究已经进行了调查和模拟这些现象。这篇综述的目的，一方面，在一个全面的概述的方法，在三个不同的尺度，即颗粒，电极和电池单元水平的耦合化学机械行为的LIBs建模。因此，重点是力学对电池性能和降解机制的影响。我们指出了这些模型中的关键点，以及解决这些问题的挑战。特别是，通过概述理论和数值模型的里程碑，我们为电化学和机械界感兴趣的读者提供了一步一步的指导。另一方面，这篇综述旨在促进机械耦合建模的知识转移到全固态电池的研究中，由于固体电解质的额外机械约束，机械问题预计将发挥更加多样化和重要的作用。
Investigations on the fast capacity loss of Lithium-ion batteries (LIBs) have highlighted a rich field of mechanical phenomena occurring during charging/discharging cycles, to name only a few, large deformations coupled with nonlinear elasticity, plastification, fracture, anisotropy, structural instability, and phase separation phenomena. In the last decade, numerous experimental and theoretical studies have been conducted to investigate and model these phenomena. This review aims, on one hand, at a comprehensive overview of the approaches for modeling the coupled chemo-mechanical behavior of LIBs at three different scales, namely the particle, the electrode, and the battery cell levels. Focus is thereby the impact of mechanics on the cell performance and the degradation mechanisms. We point out the critical points in these models, as well as the challenges towards resolving them. Particularly, by outlining the milestones of theoretical and numerical models, we give a step-by-step instruction to the interested readers in both electrochemical and mechanical communities. On the other hand, this review aims to facilitate the knowledge transfer of mechanically coupled modeling to the study of all-solid-state batteries, where the mechanical issues are expected to play even more diverse and essential roles due to the additional mechanical constraintimposed by the solid electrolytes.