This website uses cookies to manage authentication, navigation, and other functions. By using our website, you agree that we can place these types of cookies on your device.

MADEX 2021: Hanwha Defense presents its new technology of lithium-ion battery for submarines


At MADEX 2021, International Maritime Defense Industry Exhibition, South Korean company Hanwha Defense presents its new technology lithium-ion battery that will be used on the new 3,000-ton class attack submarine code-named KSS-III Batch-2 to enter service by 2026.
Follow Navy Recognition on Google News at this link


Russian Vyborg Shipyard laid the Purga ice class coastguard ship of project 23550 925 001 Hanwha defense displays new technology of lithium-ion battery for South Korean Navy KSS-III Batch II submarine. (Picture source Hanwha Defense)


The KSS-III (Jangbogo-III) class, also known as Dosan Ahn Chang-ho class, is a series of next-generation diesel-electric attack submarines for the South Korean Navy. She will be powered by a diesel-electric, fuel-cell air-independent propulsion system to reach a surfaced speed of 12 knots (22 km/h) and 20 knots (37 km/h) n submerged conditions with a range of 10,000 nautical miles (19,000 km/h). Compared with the lead-acid batteries used before, the new lithium batteries enable KSS-III batch II submarine to cruise at high speed, increase its ability by 300% and economic endurance by 160%. And the durability and life expectancy are doubled more.

Hanwha Defense is responsible for integrating the battery modules and other parts on the next-generation 3,000-ton submarine, as the lithium-ion battery is expected to help increase the underwater operational hours of the submarine twice as much as those with lead-acid batteries.

Notably, the Hanwha-built lithium-ion battery has been designed with a top priority on safety and reliability since the battery power stacks have undergone operational demonstrations for the first time in the world, even in various extreme conditions.

The submarine-based battery technology has successfully been expanding into a commercial sector to develop an energy storage system, or ESS, for an eco-friendly propulsion system for offshore ships.

In January, Hanwha Defense signed a strategic memorandum of understanding (MOU) with Danfoss Korea to expand business cooperation to develop eco-friendly electric propulsion systems. Under the agreement, both firms will jointly develop electric propulsion systems through a technology partnership.