OverviewSolid electrolyte interphase layerHistorySilicon swellingCharged silicon reactivitySee also
Starting from the first cycle of lithium-ion battery operation, the electrolyte decomposes to form lithium compounds on the anode surface, producing a layer called the solid-electrolyte interface (SEI). For both silicon and graphite anodes, this SEI layer is the result of the reduction potential of the anode. During cycling, electrons flow in and out of the anode through its current collector. Du…