Lithium Electrodeposition at the Solid Electrolyte and Lithium Metal Interface

Monday, 14 October 2019
Grand Ballroom (The Hilton Atlanta)
D. Tewari and P. P. Mukherjee (Purdue University)
Lithium metal anodes are desirable because of high redox potential and large specific capacity. However, during charging of lithium metal anodes, dendritic growth can occur at the lithium metal and liquid electrolyte interface. Dendritic growth at the interface is detrimental to battery performance and also a safety issue. Solid electrolytes have been proposed as alternative to liquid electrolytes for all-solid-state batteries. This study is aimed at understanding lithium electrodeposition characteristics for inorganic solid electrolyte and lithium metal interfaces. The deposition of lithium will depend upon the nature of the interface, i.e., the orientation and misfit of lithium and solid electrolyte crystal lattices. The deposition will also depend upon the mechanical properties of the solid electrolyte. This presentation will focus on mesoscale understanding of the nature of such electrodeposition.