Battery was developed in partnership with LG Chem. A similar yet higher density version of the Volt/Spark EV battery cells. Rumour has it this will use refrigerant instead of coolant in the battery as it's more efficient/cost effective and compact.
Given that the charge time is 9 hours on 240V @ 32A that would put the battery in the high 60's KWh capacity. Engineers in interviews have been very bullish on range numbers. GM is saying "at least 200 miles EPA". Based on battery size I'm going to guess closer to 230 miles EV range EPA (~370kms).
Based on GM's annual investors meeting and battery cell costs at $145/KWh this would put the battery pack cost in the ~$12K US. This vehicle is a lot bigger than people think. Interior passenger volume is larger than a Tesla Model S. This is a larger version of a Mazda 5 or KIA Rondo.
With 0-60mph times of under 7 seconds it moves pretty good. I'm seriously interested. Would compliment my Volt in the driveway very nicely. I'm guessing it will start in the low to mid $40K's in Canada.
