Mercedes-Benz has once again redefined the public's perception of electric vehicles with a remarkable test drive. The EQS, equipped with solid-state batteries, successfully journeyed from Stuttgart, Germany, through Denmark, and all the way to Malmö, Sweden, covering a staggering distance of 1,205 kilometers without requiring a charge. Upon arrival, it still boasted a range of 137 kilometers left. This is not just theoretical data; it’s a real-world validation based on actual driving, symbolizing the gradual arrival of the era of mass-produced solid-state batteries.
This challenge was accomplished with a slightly modified EQS, featuring the FEST® solid-state battery technology developed by American company Factorial Energy, in collaboration with Mercedes-AMG High Performance Powertrains. The final result surpassed the previous record set by the Vision EQXX for the distance from Stuttgart to Silverstone, extending it by an additional 3 kilometers. This demonstrates that solid-state batteries are not just a concept but can actually perform on the road.
The standout feature of solid-state battery technology lies in its 25% increase in energy density, while its size and weight are comparable to the current EQS lithium battery pack. Additionally, its unique design incorporates a pneumatic actuator that automatically adjusts the pressure related to volume changes during charging and discharging, ensuring the stability of battery operation. Furthermore, it works in conjunction with a passive airflow cooling system, significantly enhancing efficiency while reducing weight.
During the testing process, this route from Germany through Denmark to Sweden spanned the A7 and E20 highways. It was conducted entirely without ferries, with the Electric Intelligence system calculating the optimal path while taking into account terrain, traffic conditions, and climate. This simulation mirrored the real-life scenario of long-distance driving, which is crucial for assessing the performance of solid-state batteries in various environments. This validation process is an essential step for Mercedes-Benz before accelerating into mass production.
Markus Schäfer, the Technical Director of Mercedes-Benz, has stated that solid-state batteries are game-changers. The recent successful long-distance tests demonstrate that this technology has transitioned from the laboratory to actual road applications. The brand aims to achieve mass production of solid-state batteries by the end of this decade, offering customers a whole new level of range and comfort.
The main challenge for electric vehicles has always been range anxiety and charging wait times. However, the EQS with its solid-state battery has achieved an impressive range of 1,200 kilometers, rivaling and even surpassing that of traditional gas-powered cars. For drivers in Hong Kong, where daily commutes are often short and urban-based, this electric vehicle alleviates the worry of having to search for charging stations mid-journey, undeniably enhancing the sense of psychological security. Although solid-state batteries still face issues with costs, reliability, and production capacity in the mass production stage, Mercedes-Benz has laid a solid foundation for the future of the electric vehicle market, making the future of electric cars increasingly clear.
