Kiel (Germany): The Indian Navy has been looking for six submarines under its Project-75I (I stands for India). These submarines will have Fuel Cell Air-Independent Propulsion (AIP) technology combined with a Lithium-ion battery, which will give them the capability to lurk in the ocean depths for a longer duration and, when required, race to their … Continue reading Indian Navy’s Project-75I: German Shipbuilder Says Stealthy AIP Submarines With Lithium-Ion Battery To Be ‘Game Changer’