The military plans to build three lithium-ion (Li-ion) battery-powered submarines by 2027, according to Defense Acquisition Program Administration (DAPA) officials Friday. Samsung SDI will make the batteries. Hanwha Techwin will develop a system for integrating them into the submarines that Daewoo Shipbuilding and Marine Engineering will manufacture. It is part of a long-term project to replace aging submarines. The Navy will have nine 3,000-ton submarines equipped with domestic technologies in a decade if the project is completed as planned, according to DAPA
