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Author: Shweta Dhillon Abstract<\/strong><\/p>\n\n\n\n Silicon based anodes are highly promising candidates for\nLi-ion batteries, with energy densities on the cell level beyond 350 Wh\/kg .\nVolume expansion and continuous side\nreactions at the silicon\/electrolyte interface are, however, major obstacles\nthat are hampering their commercialization. Current state-of-the-art anodes can\npresent composites of graphite and Si, but with limited Si contents. We here\npresent an electrochemical simulations based on finite element methodology to\nbetter understand the degradation mechanisms in silicon-graphite composite\nanodes. A 1D battery model including SEI layer growth and parasitic reactions\nare constructed for porous Si\/graphite composite electrodes in half-cells. By\nsimulated electrochemical impedance spectroscopy responses during charge and\ndischarge cycles, insights into morphological changes are obtained. These\ncomputational results are supported by experimental investigations.<\/p>\n\n\n\n Full list of posters<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
Title: Modelling Capacity Fade in Silicon Graphite Composite Electrodes
Affiliation: Uppsala University<\/em><\/p>\n\n\n\n