Mercedes-Benz will collaborate with Factorial Energy to jointly develop next-generation battery technology. Both firms aim to begin testing prototype cells next year. The goal of the partnership is to begin developing the cell and extend development to include modules and integration into the vehicle battery. Mercedes-Benz expects to integrate the technology into a limited number of its vehicles within the next five years.

The key difference between solid-state batteries and conventional EV batteries is the use of an electrolyte made of solid material, instead of a liquid electrolyte. The electrolyte is needed to transport ions back and forth between the electrodes when charging and discharging the battery.

Solid electrolytes enable optimized battery safety and facilitate the use of new anodes. These anodes, such as lithium-metal anodes, offer a higher energy density than those seen in today’s lithium-ion battery cells. They can also increase range and shorten charging times as a result.