Billy Bunkie The Science Junkie

Theoretical science, existential spirituality, sprinkled with elements of sociology, anthropology, transhumanism, and funk. [The technical explanation of funk is 'having major skill']

Tuesday, December 18, 2007

New Electric Car Nanowire

Nanotechnology assists battery operation handily. New nanotechnology has been used with lead-acid batteries to improve charge and discharge speeds, and could be useful to supercapacitors.

Assume we have the plastic dielectric supercapacitors featuring 7x the charge noted in the canadian company's products, 45kj x 7 being 315kj in the space provided.

Assume also that we have access to Liion batteries with nanotube components which are 10x denser in energy than traditional 150-200wh/kg. These will be 1500-2000wh/kg.

Providing 71bhp peak and 30hp standard average operation for 10 hours requires 800 megajoules. 800,000kj of usable storage capacity.

'that is 1119kg. that is 2461 pounds of good liioin batteries to produce a 400 mile 10-hour 30hp effort, entirely zonked. we can actually get 200-400 minute operations from this rack unharmed.'

according to this report, we would here only require 246 pounds of NanoLiion batteries to get the safe 200 minute drive at 30hp, and the booster ultracap strapon would be 220 pounds. This means the car needs 466 pounds of batteries and a roughly 100 pound polyframe to operate for the 3.3 hours.

The battery life could easily be extended to 6.6 hours, which is much more user friendly, or even to 10 hours with only a modest enhancement of battery weight. A 10 hour ride within the safe range of battery cycle would require 738 pounds of battery. At that length, solar body cover could extend the life of the ride by a measurable degree.

At this weight and size, it would be feasible to use the "toast" recharging method on the batteries, and give the car a bumpered 'charger' like a cordless drill, giving the car a spare battery or an array of batteries to be charged while driving near a central location. Ooh, the batteries could be charged by Tesla. Simply park your car on a mat for your driveway and it will recharge while it sits, plugless. This is the future of cars.


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