© 2026 Hanwha Aerospace Europe
Lithium Battery Systems
We are committed to spearheading the transition into the era of eco-friendly ships with our cutting-edge core technology of the world’s best lithium battery system for submarines and offering a highly reliable and safe ESS product line.
High Energy Density
Engineered to provide a high energy density, the submarine lithium battery system is designed to extend the operating time at economic speed by 1.6x, and the maximum underwater operating time by three times compared to conventional lead-acid batteries. Its design, which takes scalability into account, also enables customized solutions for customers.
Safety & Convenience
Our top priority is ensuring maximum safety, even in challenging underwater environments. To achieve this, we have implemented multiple safety mechanisms, such as monitoring the state of each individual cell and the lithium-ion battery system, and creating contingency plans to address any malfunctions. Our automated integrated management system also ensures convenience and efficiency in mission execution.
Class-Approved Product
Our system has become the first in the domestic ship ESS industry to have obtained certifications from the Korean Register and the Korea Maritime Transportation Safety Authority, and to have our system installed in eco-friendly ships throughout Korea.
Optimized Design for a Vessel
By incorporating basic designs that factor in the diverse installation conditions of different types of ships, we ensure economic efficiency and optimal use of available space. We also offer an expandable product lineup tailored to suit customer requirements for capacity and voltage.