Surface Chemistry Of Silicon Anodes For Next Generation Lithium Ion Batteries

Download or read book Surface Chemistry of Silicon Anodes for Next-generation Lithium-ion Batteries written by and published by . This book was released on 2014 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Batteries play a critical role in modern society and will only increase in importance as electric vehicles and grid-scale storage applications continue to grow. Silicon is a material of great interest as an anode for future battery applications, as it offers the possibility of greatly increased battery capacities and reduced weights. This work investigates two methods in which silicon may find use in batteries. First, silicon was shown to be a viable anode in primary battery systems using carbon monofluoride as a high-energy cathode for extremely high-temperature environments such as deep mineshafts. The temperatures achieved in these studies were some of the highest ever observed for a functioning lithium battery. In addition, the fundamental surface chemistry of silicon as a rechargeable anode for safer lithium-ion batteries was also investigated. Organosilicon-based electrolytes offer much higher flash points than the current generation of electrolytes, but the surface chemistry of their solid-electrolyte interphase formation on the silicon anode surface remains relatively unexplored until now. Finally, this work also presents a method for creation and subsequent functionalization of graphitic nanopillars. These nanopillars may serve as a route to well-ordered graphene nanoplatelets of monodisperse size and controllable chemistry.