Product category: Batteries and Chargers
News Release from: Saft Lithium Battery Division
Edited by the Electronicstalk Editorial Team on 19 January 2006
Ruggedised Li-ion packs
for future French soldiers
Saft has been awarded a contract to develop the new generation rechargeable lithium-ion battery packs that will power the French Army's infantryman of the future
Saft has been awarded a contract by Sagem Defense Securite (part of the Safran Group) to develop the new generation rechargeable lithium-ion (Li-ion) battery packs that will power the French Army's infantryman of the future (FELIN). This initial contract award by Sagem is for a study and development phase, in which Saft will design, develop and test specialised, ruggedised high-performance Li-ion battery packs for FELIN, as well as supplying small batches for product qualification.
This article was originally published on Electronicstalk on 19 January 2006 at 8.00am (UK)
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'This contract reinforces Saft's position as the leading supplier of advanced technology battery systems for infantry applications', said John Searle, CEO and Managing Director of Saft.
'We are proud to work with Sagem Defense Securite to support the French Army in making a major change from primary to rechargeable batteries'.
In developing the FELIN battery packs, to be supplied ready to plug-and-go with integrated control electronics and connectors, Saft will address many of the same energy storage and management challenges presented by mobile telephony and microcomputer systems, but with the added need to ensure they will provide safe, reliable operation over the extreme range of shocks, temperatures and humidity encountered in a typical field mission as well as meeting NBC (nuclear bacteriological chemical) criteria.
Further reading
Lithium batteries to power German military radios
Saft has won a competitive tender to supply an additional 30,000 Friwo brand primary lithium battery systems to power the German Army's SEM70 portable military radio sets
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A further major requirement is for EMC (Electromagnetic Compatibility) both in emission and susceptibility.
The packs will also have to withstand lightning and the electromagnetic pulse of a nuclear explosion.
The FELIN packs will be based on Saft's MP series of lithium-ion cells that are used in many civilian and military portable and standby applications where fail-safe operation is essential.
A key advantage of the MP cell is its unique flat, prismatic shape which gives it an extremely efficient packing efficiency by eliminating volume lost when conventional cylindrical cells are packed together - a pack of prismatic cells has some 20% higher volumetric energy density than an equivalent pack of cylindrical cells.
Saft's lithium-ion electrochemistry, which uses a graphite negative electrode and lithiated cobalt oxide positive electrode, is optimised to operate over the temperature range -40 to +60C (in discharge).
Another vital factor is that the cell will still retain 95 per cent of its charge after one month's storage.
The MP cells also offer a long service life and will retain a high percentage of their initial capacity after 500 charge-discharge cycles.
In 2004, Sagem won the FELIN contract for the development and production of 32,000 future integrated soldier systems for the French Army.
The programme will supply FELIN systems to all 20 infantry regiments, plus select troops in armoured, engineer and artillery regiments. Request free introductory details about products from Saft Lithium Battery Division....
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