Increasing elasticity of silica-based ionogel electrolytes for sodium-ion batteries: a property study

Abstract

Batteries are a major base for today’s society and will play an even larger role due to the further electrification. Besides increasing their energy and power density, several challenges exist for the next generation batteries such as designing more sustainable and safer batteries. In this regard, solid-state electrolytes are of high importance because of their higher stability. In this poster, silica-based ionogels for sodium-ion batteries (SIBs) are investigated. SIBs are considered more sustainable than their lithium counterparts due to the high abundance of sodium in the earth’s crust. On the other hand, the quasi-solid silica-based ionogels are very attractive due to their desired electrolyte properties such as high thermal stability, high electrochemical stability, and high ionic conductivity. Unfortunately, silica-based ionogels are in general brittle, which may induce cracking when in contact with electrodes. In this poster silica-based ionogels are organically modified to investigate the effect on the desired electrolyte properties.