Hybrid electric military vehicle battery (HEMV) Rechargeable lithium-ion battery system High power lithium-ion battery system for hybrid electric military ground vehicles Saft’s HEMV battery system provides power to the vehicles’ engine while it is not relying on fuel. The battery is comprised of between 5 and 8 high power VL 34P Li-ion modules, depending on the specific power needs of the application. Saft supplies complete energy storage systems customized as needed to meet customer specifications. Benefits ■■ Very high specific energy ■■ Very high power ■■ Maintenance free ■■ Light weight ■■ Fast re-charge ■■ Low life cycle costs ■■ Reliable and safe Features ■■ Air cooling with optional liquid cooling ■■ Carbon negative ■■ Nickel oxide-based positive ■■ Integrated electronic management system ■■ CanBus communication interface with vehicle ■■ Can be configured with differing numbers of modules depending on power needs (see Doc No 32016-20607 for more information on the VL 34P module) Applications ■■ Hybrid electric military vehicles ■■ Defense ■■ Exportable power ■■ Silent watch ■■ Propulsion ■■ Applications requiring a combination of power and energy Electrical characteristics HEMV-5 Nominal voltage at 50% SCO Charge limit Discharge limit Maximum continuous current at 25˚C* Peak power at 50% SOC* Continuous power at 50% SOC* Energy Specific energy Capacity Impedance at 5 sec (250 A discharge) 219 V 307 V 246 V 344 V 150 V 210 V 200+ A 98.3 kW 138 kW 53 kW 74 kW 6.6 kWh 9.2 kWh 66 Wh/kg 30 Ah 65mΩ 85 mΩ Mechanical characteristics HEMV-5 Weight 220 lbs / 100kg Height HEMV-7 310 lbs / 140 kg 9 in / 229 mm Width 18.5 in / 470 mm Length 25 in / 635 mm Operating Conditions HEMV-5 Operating temperature Storage and transportation temperature Doc N° 32017-2-0608 Edition: August 2012 Information in this document is subject to change without notice and becomes contractual only after written confirmation by Saft. Published by the Communications Department Photo credit: Saft 35 in / 890 mm HEMV-7 -30˚C to +60˚C -40˚C to +65˚C *Power and current ratings dependent upon cooling conditions and fuze sizing Saft 107 Beaver Ct. Cockeysville, MD 21030 Tel.: +1 410-771-3200 Fax: +1 410-771-1144 Email: [email protected] www.saftbatteries.com HEMV-7 e6T battery Top-level system functions ■■ Communication of battery state of charge, temperature, and other key parameters vis J1939 CAN Bus ■■ Redundant overcharge protection ■■ Overload protection ■■ Short circuit protection ■■ Over-discharge protection ■■ Battery reserve protection ■■ Battery monitoring ■■ Built-in-Test ■■ Cell heating (Arctic conditions and battery charging) ■■ Continuous/off-line cell balancing 1000 Amp power test at -18˚C Safety heritage ■■ System design includes Saft proven redundant overcharge protection ■■ Cells equipped with hermetic seal and over pressure safety vent ■■ VLP cells use Saft’s fielded nickel cobalt aluminum (NCA) lithium-ion chemistry Saft 107 Beaver Ct. Cockeysville, MD 21030 Tel.: +1 410-771-3200 Fax: +1 410-771-1144 Email: [email protected] www.saftbatteries.com Doc N° 32033-2-0812 Edition: August 2012 Information in this document is subject to change without notice and becomes contractual only after written confirmation by Saft. Published by the Communications Department Photo credit: Saft