I have a ? why dont the make like a really high voltage induction motor like 1500 volts to run a car then they wouldnt need so many amps from what i understand and amps are what drain a battery right or am i all wrong ?
Interesting question. My thoughts (as an electrochemist) would be:
Having so many cells in series could have an issue that if one cell fails, the entire pack fails. The entire pack is dependent on the weakest cell. If that cell depleats or runs down before the others, the entire pack will lose voltage.
There might be an issue of resistance. Resistance adds directly in series. Reciprocal resistance adds in parallel. There might be a heating or efficency issue.
There might be an issue on recharging a high resistance high voltage cell. You may not be able to generate enough voltage to charge on regenerative braking?
I have a ? why dont the make like a really high voltage induction motor like 1500 volts to run a car then they wouldnt need so many amps from what i understand and amps are what drain a battery right or am i all wrong ?
You realize electric/hybrid cars operate the electric motor drivelines on 900+ volt systems, right? Generally anyway. They aren't 12 volt electric motors powering a 2500 lb car.
The future of oil would be in doubt in many different applications.
However I am deeply skeptical.
Total BS. Anyone who says they are making energy without any fuel, has no idea what they are talking about, nor where that energy comes from. Calling it "cold fusion" doesn't make it fusion, or cold. Energy must come from somewhere, whether it's converting matter into energy by burning a fuel, or by converting one type of energy to another, such as windmills do, the energy must come from somewhere.
http://www.bloomenergy.com/ makes something that actually works, though, and could be used. So far, they have only built large installations, and not scaled down to consumer level yet. It's very interesting, and does require natural gas.
Neither one of these would be particularly useful for direct usage in vehicles. The energy generated from either system would need to be stored in batteries, ultra-capacitors, or by some other mechanism, and converted back to kinetic energy through electric motors, or some other means of propulsion.
i dint know the hybrids where running that much voltage but the 100 percent electric non hybrids dont run that high a voltage right
Well, maybe not that high. But most all of them are at least 480 volts. Tripling that and dropping the amperage draw way down won't really change anything though. It won't increase storage (traversable distance) or power (Watts will be the same). Storable energy in a battery is directly related to the surface area of the electrode embedded in the gel/fluid/whatever. The same "draw" on the capacity of the batteries will occur.
Well, maybe not that high. But most all of them are at least 480 volts. Tripling that and dropping the amperage draw way down won't really change anything though. It won't increase storage (traversable distance) or power (Watts will be the same). Storable energy in a battery is directly related to the surface area of the electrode embedded in the gel/fluid/whatever. The same "draw" on the capacity of the batteries will occur.
I was undert he impression the 144 volts was top end of scale for the drive motors.
The comments on that article pretty much sum up the quality of the content...
quote
Comment by RichK Just plain wrong. I guess we need to ignore the materials problems that widespread use of electrical vehicles would cause. There would be a shortage of cobalt used in batteries. Cobalt is largely mined in the Congo with questionable environmental impact and would be in short supply. Not to mention the demand for lithium. How about neodymium that is needed to build the magnets in high output electric motors. That would definitely become hard to come by. It is almost exclusively mined in China. China is already putting controls on the amount to will export. Then lets pretend that the materials shortages were somehow overcome. How about how would the power grid which is already straining be beefed up enough to supply the electric power needed to charge the equivalent of all the gasoline used in the world today. Ever see the years of legal battles every time a utility tries to add a new major power line through a neighborhood? What would create all of that electrical energy? Well most likely natural gas power plants. And many, many more would have to be built. Zero emissions is a farce, it's zero emissions at your car, but the emissions are just somewhere else at the generating power plant where you don't have to think about it. Don't say solar. Hawaii where there is actually enough sun for solar to make sense is already running in to the problem that solar panels on peoples roofs are too numerous for the distribution grid to handle. It is a very tricky thing to regulate the power on a grid. It is problematic at best to regulate it when you can't control the amount of power being pumped into it from tens of thousands of solar systems you as a utility have no control over. Power spikes and overloads are already being caused as a result, damaging appliances and in some cases utility wires and transformers because of this. For example my neighbor installed solar panels and now the power to my house no longer has a nice sine wave but has plateaus and spikes around the zero crossings due to the cheap inverters they use in these solar systems. This will not only reduce the life of his appliances but now mine too.
There are just way too many things to be worked out and it will be a lot longer than two years. If anything, it would be simpler to convert cars to burn natural gas. The electric cars are running on electric created by burning natural gas anyway.
Not to mention nickel, silver, lithium...
[This message has been edited by carbon (edited 12-27-2013).]
As I was driving kept wondering how easy it would be to put this drive train in a Fiero. SInce a Fiero with the Tesla drive train would be about 1100 lbs light I am guessing the performance would be "spirited"
Drivetrain - easy. Battery... Good luck with that.
this is an article on aluminum air battery that can power a car 1000 miles befor recharge that the materials are about $50 http://www.extremetech.com/...duction-cars-in-2017 Oh ya i forgot you must put water in every 200 miles
[This message has been edited by engine man (edited 01-16-2014).]
Had a Tesla model S (the high performance version) out 4 a drive today. 0-100 km in 4.4 seconds 460 km range with a one hour recharge time (stop for lunch and u can drive it across the country)
wow, only 285 miles across the USA? damn, I must have taken the long way to get home last time I went back to Florida from South Carolina.
wow, only 285 miles across the USA? damn, I must have taken the long way to get home last time I went back to Florida from South Carolina.
285 miles stop for lunch and charge, another 285 miles stop for dinner and the night. Repeat tomorrow. 570 miles in one day is a decent drive. I've done the 1000 miles in a day drive and it takes a day to recover from it.
wow, only 285 miles across the USA? damn, I must have taken the long way to get home last time I went back to Florida from South Carolina.
Not quite. If you noticed I said u go 460km and stop for lunch. It takes an hour 2 recharge then u go another 460 km and stop 4 another hour 2 recharge. U make the trip in several 460 km steps stopping 4 an hour 2 recharge between each step. U can cross the US in several 460km segments
Not quite. If you noticed I said u go 460km and stop for lunch. It takes an hour 2 recharge then u go another 460 km and stop 4 another hour 2 recharge. U make the trip in several 460 km steps stopping 4 an hour 2 recharge between each step. U can cross the US in several 460km segments
