Wu, LinminZhang, Jing2016-04-292016-04-292015-04-17Linmin Wu and Jing Zhang. 2015 April 17. Numerical Simulation of Li Diffusion in 3D Polycrystalline LiCoO2. Poster session presented at IUPUI Research Day 2015, Indianapolis, Indiana.https://hdl.handle.net/1805/9480poster abstractLiCoO2 is a commonly used cathode material of Li-ion rechargeable batteries. In battery applications, crystal anisotropy and grain boundaries have large influence on ion diffusion properties. To improve the battery performance, a thorough understanding of the diffusion process of Li ions is significant. In this study, 3D microstructures of various grain sizes were generated using phase field models. The apparent Li diffusion coefficient was obtained using finite element method. The relationship between the apparent Li diffusion coefficient, the grain boundary diffusivity, spatial distribution of grain orientations, and the grain size was discussed.en-USLiCoO2Li-ion rechargeable batteriesbattery performanceLi DiffusionPoster