EPTechnologies has unveiled SVENNER, the world’s first solid-state marine battery to achieve full DNV type approval.
At the core of SVENNER is solid-state cell technology, replacing most liquid electrolytes with advanced solid materials. The result is a battery that withstands six times overcharge and an 8mm nail puncture without thermic reaction, ensuring stability even under extreme stress. With more than 10,000 life cycles achievable, operators benefit from reduced lifecycle costs and improved material efficiency.
Safety is reinforced through a dual-core lockstep CPU BMS, providing redundancy and continuous monitoring. HIVIL interlocks and internal water-leak detection add module-level protection, while DNV’s Design Option 1 ensures no propagation – any incident is contained within a single cell, eliminating the need for gas ducting. The chemistry remains stable under high temperatures, and a hardware override switch allows manual intervention in critical emergencies.
The SVENNER solid-state marine battery is available for order and will be deployed across recreational, commercial and industrial marine projects, including ferries, work-boats, performance yachts and hybrid systems. A Level 2 model, offering a 12% performance boost without added size or weight, is expected in January.
“Achieving DNV type-approval for our solid-state tech battery is a breakthrough for marine electrification,” said Marco Ottiker, COO and co-owner of EPTechnologies. “We’re now offering vessel designers and operators a turnkey energy-storage solution that combines the highest levels of safety, durability and performance, enabling the next generation of electric propulsion systems.”
