The Saft small VL cylindrical rechargeable cells are based on lithium-ion (Li-ion) chemistry. Their most innovative feature, in addition to useful nominal capacities and long cycle-life, is the ability to be charged and discharged over a wide temperature range, especially at low temperatures.
The VL cells also feature various redundant safety features (electronic protection circuit, built-in circuit breaker in case of faulty chargers, safety valve, shut down separator) which makes them ideal for demanding applications (military, medical, etc.).
Battery assemblies
To maximize performance and ensure total safety, Saft and its certified pack makers integrate small VL cells into battery assemblies designed to the specific requirements of each application.
Construction features
stainless steel container
hermetic and sturdy glass-to-metal sealing
built-in circuit breaker and safety vent
shutdown separator (operating at temperatures > 125°C)
available as individual batteries (with/without tabs) or multi-cell battery packs
Main applications
"Soldier of the Future" equipment
mobile asset tracking
small UPS
professional portable lighting (miners lamps, etc.)
portable gas analysers
professional video
electric bikes and personal mobility
rack-mount telecom batteries
Benefits
high operating voltage (4.2-2.5 V range)
high energy density (up to 385 Wh/l and 180 Wh/kg)
wide operating temperature range (-20°C to +60°C for charge, -50°C to +60°C for discharge)
unrivalled low temperature performance
high current capability (2C rate in continuous mode; up to 4C rate in pulses)
extended autonomy
long cycle life (600 to 1000+ cycles), depending on conditions
high current capability (2C rate in continuous mode; up to 4C rate in pulses)
easy state of charge detection based on open circuit voltage readings
light weight
easy integration into compact systems
Compliance with the European directive RoHS
excellent safety records