SEI growth via near-shore aggregation Fig. shows SEI growth over the course of 1300 reactive cycles in our ∼ 24k atom graphite-EC/LiPF 6 model system. By reactive cycle 1300, the SEI consists of a dense ∼ 5 nm thick outer organic layer, as well as a thin inner inorganic layer deposited directly on the anode surface. This is in line with experimental and computational studies that reveal the SEI as a two-layered structure. Beginning early in the simulation CO 2-