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Rechargeable Li-ion systems for torpedoes

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.

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Market sectors

Defense

Features & Benefits

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’

Technical Specifications

·        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 SAS
Communications Department
26, quai Charles Pasqua
92300 Levallois-Perret – France
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