NRC panel of advocates for dead-end hydrogen cars trashes plug-in hybrids in deeply flawed report, Part 2 Let's see: $2,400 - price of replacement NHW11, 20 kWh traction battery 80%-40% = 40% usable capacity 40% * 20 kWh = 8kWh usable $2,400 / 8kWh = $300/kWh * * * * BINGO * * * * Ok, is the math wrong? Bob Wilson
It's only off by an order of magnitude. I think the capacity of that battery was 1.8kwh, not 20 kwh. A better place to look is commercial lithium. The JCI-saft pack that will go in the ford transit connect is $750/kwh (that is the price to ford) and it has an expected warranty of 10 years 120,000 miles (life of van in fords terms). The Leaf and Volt power batteries seem to be in this ball park of price. Nissan claims that they should be able to reduce price in 2 years to around $375/kwh with the volume and new plant in tennesee. Tesla's cost is about $200/kwh for cells, but must hand assemble them which doubles the price and warranty is only 3 years. As you can see there are obstacles to $300, but it is with in reason. There is also no reason some plug in hybrids would not be competitive with $500/kwh packs that are easily achievable.
I see it now. I confused peak power draw, 20 kW, versus the battery capacity. The 20 kW is not for an hour. This helps me with another scheme. Sorry, thanks for the correction, Bob Wilson
BYD's LiFePO4 batteries as used in the F6DM are also under $300 per kWh, including all electronics and casings etc.
