(Invited) Development of Binders, Surface Coatings and Electrolytes to Stabilize Silicon Anodes for Lithium Batteries

Abstract

Silicon is a desirable anode material for lithium ion batteries due to the high lithiation capacity of silicon. However, the lithiation/delithiation process results in large volumetric changes to the silicon particles. The volumetric changes result in instability of the solid electrolyte interphase (SEI) on silicon. Investigations of the effect of binders, surface modifying agents and electrolyte formulations on the stability of the SEI on silicon anodes will be presented. Methods to modify the silicon interface to improve cycling performance will also be discussed.