リチウムイオン二次電池
Batteries are an important component of diesel-electric submarines, allowing them to operate underwater for extended periods of time before having to resurface to recharge them. Improvements in battery technology in recent years have allowed smaller diesel-electric submarines to operate with greatly improved range and endurance. Future submarine designs might use improvements in Lithium-ion battery technology. The Collins-class replacement might operate battery technology superior to that of the existing Collins-class.