First submarine with high-performance lithium-ion batteries is operational in Japan

On March 5, the Japanese Self Defense Force (or JMSDF) commissioned its first conventional submarine equipped with lithium-ion batteries. Eleventh ship in the Sōryū class, the Ōryū is also the first submarine in the world to be fitted with this type of accumulator which significantly increases the diving performance of submarines.

Although they have many advantages, li-ion batteries are not without defaults. Far from being a quick fix, they nevertheless interest many shipbuilders, notably the French Naval Group, because of the operational advantages they can offer.

Toryu jmsdf Air Independent Propulsion AIP | Defense Analysis | Army budgets and defense effort
The Toryū is the twelfth building in the Sōryū class. This class will be followed during the current decade by a new class of high performance submarines, a priori equipped with li-ion batteries.

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