You’d think that with the new 2016 Chevrolet Volt, the Spark EV, the 2016 Chevrolet Malibu Hybrid, and the revised ELR (and the upcoming Bolt EV) on the way, GM would consolidate its batteries and source them all from one supplier, right? Well, not exactly, as these different vehicles need different batteries for the varying nature of their powertrains.
For example, the 2016 Malibu Hybrid will use batteries from Hitachi Automotive Systems.
Hitachi notes that its 2016 Malibu Hybrid batteries will be potent 5,000W/kg prismatic lithium-ion battery cells. These cells manage to achieve a respectable 80Wh/kg energy density.
Hitachi says the cells employ heat resistant separators to ensure proper ionic conductivity between the positive and negative electrodes, which essentially means it’s designed to be both powerful and safe. Best of all, the battery maintained its high output power density during GM’s extreme high heat and cold weather evaluations – as durability of the battery setup was actually one of the key reasons it was adopted.
What’s interesting is that while the 2016 Chevrolet Volt will lend its drive unit to the 2016 Malibu Hybrid, GM will be swapping out the new Volt’s LG Chem-sourced batteries for the Hitachi ones before the drive unit is mated to the Malibu’s new 1.8L four-cylinder engine.
Here are the Hitachi’s cell specs:
Size (mm) 120×80×12
Weight (kg) 0.24
Average Voltage (V) 3.7
Capacity (Ah) 5.2
Output Density (W/kg) 5,000
Energy Density (Wh/kg) 80