The Electrolyte: Underappreciated component? 

In our next Battery Live Talk, we are going to have a closer look at an underappreciated component: the Electrolyte. While the cathode active material is often the focus of discussions about lithium-ion batteries, the electrolyte remains in the background. Yet, it plays a crucial role in the performance, safety and lifespan of the battery. To discuss where we stand today in the development of electrolytes, we are pleased to welcome Buse Bulut Köpüklü of E-Lyte Innovations GmbH and Martin Wolke of TU Braunschweig on the virtual stage.
 

Many common electrolytes contain PFAS (per- and polyfluorinated alkyl substances), which are currently being investigated by the European Chemicals Agency (ECHA) with regard to possible restrictions. March 2025, the energy sector will discuss the use of PFAS in batteries and thus in electrolytes.
The development of PFAS-free electrolytes is picking up speed, but there are technical hurdles to overcome. There are PFAS-free alternatives for lithium salts that also have better thermal, cyclic and corrosive properties. However, it is not yet possible for these alternatives to lead to complete substitution. New electrolyte formulations must provide comparable thermal and chemical stability and high ionic conductivity without increasing safety risks or compromising battery life. Solid-state electrolytes are a promising approach that could play a central role in battery technology in the future.
 
Moderator Sebastian Will, VDI/VDE-IT, will discuss with his guests the crucial factors for the advancement of modern energy storage solutions and explore innovative electrolyte chemistries to further improve performance and safety of batteries.

What will be discussed?

• What role does the electrolyte play in the next generation of batteries?
• How do electrolytes contribute to safety and performance?
• What innovative electrolyte chemistries or alternative additives could replace PFAS ones while maintaining or improving battery performance?