Saft’s rechargeable Li-ion battery systems represent the most promising approach for both light weight and heavy weight (LWT and HWT) training and exercise torpedoes. Although currently slightly more expensive than secondary Ag-Zn batteries, the reusability of Li-ion batteries ensures low life-cycle costs, bringing cost-effectiveness to sea trials.
Saft provides a custom-made service to develop the ideal Li-ion battery system to suit a customer’s specific performance requirements for each torpedo. The battery is made up of a number of Li-ion cell modules connected in parallel to provide the required capacity; these are then connected in series to provide the required voltage. The Li-ion battery is managed by an electronic control system adapted by Saft to suit the specific torpedo application.
o High volumetric and gravimetric energy densities
o Low life-cycle costs through increased reusability
o Long service life (more than 100 cycles and over five years)
o Long calendar life
o Safe operation and ease of handling
o Reduced maintenance and logistics costs
o State of charge measurement which provides an accurate ‘fuel-gauge’
· Sealed construction
· Large and medium-sized batteries
· Cylindrical and near-prismatic format
· Battery life duration: 10 years
· Operating temperature: - 40°C to + 60°C
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Saft Groupe SA
26, quai Charles Pasqua
92300 Levallois-Perret – France
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