Fig. 8
From: First Principles Study of Penta-siligraphene as High-Performance Anode Material for Li-Ion Batteries
a Dilute Li vacancy migration pathways and b the corresponding energy profiles on fully lithiated P-Li4Si2C4. The gray (middle sized), golden, and purple spheres are C, Si, and Li atoms, respectively. The large green sphere represents the dilute Li vacancy. The thick/thin arrows indicate fast/slow migration pathways which form the two-dimensional diffusion networks