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Saft is focussing on its Li-ion battery technology at Nor-Shipping 2011, with displays showing how it can play a part in creating efficient and cost-effective marine propulsion and auxiliary systems.

At stand D03-14B, the Saft team will discuss why an increasing number of ship and boat builders and operators are now investigating the potential performance, weight-saving and TCO (Total Cost of Ownership) advantages of Li-ion batteries across a wide variety of demanding marine applications.

According to Saft, Li-ion battery technology offers a number of key advantages for designers in the marine industry, including: high-power and/or energy storage in a compact space and weight-saving package; high-efficiency; long calendar and cycle life even when operating in extreme temperatures; and zero maintenance requirements.

Saft expects that Li-ion technology will be of particular interest for hybrid propulsion systems, in which the batteries work in conjunction with diesel (or possibly gas-turbine) generators and electric motors.

The advantages of this hybrid power approach, claims Saft, will vary according to the type of application.

For example, hybrid power could offer significant improvements in fuel efficiency and CO2 and NOx savings for work boats that spend most of their time at sea moving into position and only operate at full power for very short periods.

So rather than sizing a diesel engine for peak power, it can be specified at a more economical size for average power, with the extra power drawn from the batteries when required.

Saft Lithium Batteries

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