Mercedes-Benz has commenced road testing of its next-generation solid-state battery technology, integrating it into a modified EQS electric vehicle (EV).
Developed in collaboration with Mercedes AMG High Performance Powertrains (HPP) and US-based Factorial Energy, the new battery promises increased range, efficiency and safety.
A leap forward
The lithium-metal solid-state battery features an innovative electrolyte, replacing conventional liquid-based systems.
This advancement enhances energy density and reduces weight, allowing for up to 25% more range than the standard EQS battery.
The prototype test vehicle is expected to exceed 1000km per charge.
“Developing an automotive-scale solid-state battery underlines our commitment to innovation and sustainability,” said Markus Schafer, Mercedes-Benz’s Chief Technology Officer.
Factorial Energy’s FEST (Factorial Electrolyte System Technology) is at the core of this breakthrough, marking a shift from laboratory testing to real-world application.
Optimised design
Mercedes-Benz has patented a floating cell carrier system that mitigates volume expansion and contraction during charging cycles. Additionally, passive cooling further reduces weight and enhances efficiency.
“Being the first to successfully integrate lithium metal solid-state batteries into a production vehicle platform marks a historic achievement in electric mobility,” said Siyu Huang, CEO of Factorial Energy.
Future prospects
The company will conduct further laboratory and on-road tests over the coming months, evaluating the battery’s durability and potential for mass production.
Mercedes-Benz’s collaboration with Factorial Energy, which began in 2021, highlights its commitment to advancing electric mobility.
If successful, this technology could significantly impact the EV market, setting a new industry benchmark for range and efficiency.
In related news, Chinese auto giant BYD has announced plans to roll out solid-state batteries by 2027, with mass production expected by 2030.
With several other big brands - including Toyota - pushing for solid-state battery tech, competition is only set to get more intense.
