400 mile per charge
 

400 mile per charge EV1-powered Insight currently under construction,

September | 2011 | Wayland’s Words

Wayland’s Words | Stories shared by John Wayland (aka Plasma Boy)

being built by the owner of the World's Quickest 'Street Legal Electric Car'

http://www.youtube.com/watch?v=zLjnR...eature=related

Took me awhile to figure out what that dragster was. Not a Toyota Publica as I'd thought, but a B110 Nissan Sunny (Datsun 1200 sedan).

Wow, the guy got ahold of a NOS EV1 drive train before they crushed them all. Forward thinking!

An electric car can achieve 100-150Wh / mile, then it can drive ~6.5-10 miles per kWh of usable capacity in the pack, then the pack size required to go 400 miles would be 40-60kWh of useable capacity. The best battery cells are 95-97% DOD so the total capacity adds 3-5% at best to that.

The DBM Energy Kolibri (Hummingbird) battery is available in a 99kWh pack with 97% DOD, so that has about 96kWh of usable capacity. It weighs about 350kg and it has passed all the official tests with flying colors.

So, obviously 400+ miles on a single charge is quite possible, and doing so depends on the efficiency of the chassis. Dave Cloud's Dolphin, the Illuminati Motor Works '7', the SIM-LEI, and the Edison2 VLCe have all achieved the level of efficiency needed to do this. And I hope to build the CarBEN EV5 and possibly achieve this efficiency, as well.

Wow no wonder it gets 400 miles per charge its battery pack is 3 times the size of the Nissan leaf. If what I read is true then at the price Nissan pays for the leaf battery pack the Silver Streak has around $40k just in batteries.

I met the head of the North Bay Electric Auto Association and he said his 12 Valence U24-12XP Lithium-Ion batteries cost 20-25k and his car has a max range of 40 Miles. So the 40k price is not bad considering it can go 10X the distance on a charge. Granted the 1966 Ford Mustang is much heaver and less aerodynamic then an Insight. Also his Lithium-Ion batteries where brand new state of the art technology when he bought them so price was probably a lot higher then.

With all that being said I need to see if there is anyway I can see the Silver Streak in person its only an 1.5-2hr drive from where I live.

The Leaf has a 24kWh battery pack so that is 1/4 the size of that particular Kolibri. And the Audi A2 that used the Kolibri 99kWh did drive 375 miles (at 55mph average) and had ~18% charge left. That is about 210Wh / mile which is decent, but not great. The theoretical maximum range of the A2 would be 457 miles.

If that pack was used in a car that could do ~150Wh / mile, the maximum range would be 640 miles. At ~135Wh / mile like the SIM-LEI, the range would be 711 miles. And 108 Wh that the Edison2 VLCe got, the range with the Kolibri could be over 850 miles.

So, with a very efficient car, the pack doesn't have to be all that large to go 400+ miles.

Very cool project. I look forward to seeing it on the road! I do wish I had the cash to plop that kinda battery in my car. I have a hard enough time coming up with the cash for a 10kWh pack that'd suit me perfectly for my daily commute!