Akmal Azhar
Record-Breaking Range Test
Mercedes-Benz has demonstrated the potential of solid-state battery technology with an EQS prototype that achieved a remarkable 1,205 kilometres on a single charge. The journey began in Stuttgart, Germany, and concluded in Malmö, Sweden, with 137 kilometres of estimated range still remaining upon arrival. This result marks a significant milestone in addressing one of the biggest concerns for EVs—range anxiety.
Battery Design and Efficiency
The prototype battery mirrors the weight and dimensions of the standard EQS production unit but provides up to 25 per cent more usable range. Co-developed with Mercedes-AMG High Performance Powertrains in the UK and US-based cell supplier Factorial Energy, the battery also benefits from passive airflow cooling to further boost efficiency.
Real-World Validation
The Stuttgart-to-Malmö test was part of Mercedes-Benz’s validation programme, designed to prove performance beyond laboratory conditions. Covering different climates, road profiles, and long-distance driving, the test showcased the technology’s readiness for potential future production. Markus Schäfer, CTO of Mercedes-Benz Group, emphasized that the results validate the practicality of solid-state batteries in real-world scenarios.
The Future of Solid-State Technology
Solid-state batteries are considered a key breakthrough for electric mobility, with other automakers like BMW and Rimac also investing heavily in the field. Mercedes-Benz’s successful test signals that this next-generation battery technology could soon transition from experimental prototypes to production-ready vehicles.
Yusri Ng
