|Magna Steyr’s emerging battery pack portfolio. The heavy-duty line is the first to enter series production. Source: Magna Steyr. Click to enlarge.|
Magna Steyr, an operating unit of Magna International Inc., will produce lithium-ion battery systems for Volvo Group. The battery systems will be integrated into Volvo’s city buses, heavy-duty distribution vehicles and refuse trucks using the I-SAM parallel hybrid system.
Production of these battery systems, which incorporate A123Systems’ 32113 Li-ion cells, will begin in August 2009 at Magna Steyr’s facility in Graz, Austria.
As shown in the hybrid version of the 7700 bus unveiled in 2008, continuous output from the I-SAM motor is 70 kW (94 hp), with 120 kW (161 hp) peak; continuous torque is 400 Nm (295 lb-ft), with 800 Nm peak. A 600V, 4.8 kWh Li-ion battery pack is roof-mounted and water-cooled. (Earlier post.)
For years Magna Steyr has been active in the research and development of alternative propulsion systems, especially of electrical energy storage systems. This contract is proof that Magna Steyr is a leader in developing and delivering advanced technologies to our customers.—Dr. Burkhard Göschel, Chief Technical Officer, Magna Vehicles and Powertrain
While A123Systems is developing a portfolio of prismatic automotive cells, it continues to refine its cylindrical cells. The 32113 power cell—designed for hybrid applications—is entering its second generation (Gen-1 based on a Gen-0 start), and has a capacity of 3.8 Ah. A coming Gen-2 cell, which uses a higher power and lower-cost electrode design, will offer 4.4-4.6 Ah of capacity, and is targeted for mass production start in 2010. (Earlier post.)
In a presentation at the Advanced Automotive Batteries Conference (AABC 2009) last month, Dr. Peter Pichler from Magna Steyr described the company’s emerging battery pack portfolio as comprising three main lines:
- Energy battery packs targeted for the electric and plug-in electric vehicle markets. These will range from 10-30 kWh and 30-120 kW, and use 20-40 Ah prismatic cells.
- Power battery packs for full and mild hybrids. These will range from 0.8-3.0 kWh and 10-60 kW, and use cylindrical or prismatic cells.
- Heavy-duty battery packs. These, which are going into production with the Volvo contract, will range from 2.5-7 kWh and 60-180kW, and be built with the cylindrical cells. The 120 kW pack is first into production. 75 kW and 180 kW battery systems are in development and are targeted to be available in 2010.
The heavy-duty line is the first to enter series production.