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Anyone with any idea about the basic internal design & engines in an electric car?
I read somewhere that Chevy would not go to full production on the volt unless they could get the price down on batteries, the Li ion technology is apparently still too expensive. Anyone corroborate?ronmann said:...The Chevy Volt uses lithium batteries with an AC motor.
Hmm. Usually car makers require a component to be tested out to half its expected life before it hits the assem. line. Thus a 10yr life battery system would be expected to run in the lab for 5yrs, or under some kind of accelerated environment that simulates that period. If they follow procedure they're still ~5 yrs away.ronmann said:Yes, that's right. There is a tour of the development centre in a magazine a just got. Basically, there are 2 major companies competing for the battery contract. They said it was difficult to develop it backwards compared to a normal car since the whole car will be ready before the power plant is developed. This way the car will launch as soon as the technology is available, and they will be the first to have a Li ion car on the road. ...
A123 and Valence?ronmann said:Yes, that's right. There is a tour of the development centre in a magazine a just got. Basically, there are 2 major companies competing for the battery contract.
No its not economically possible. Lead acid has about 1/10 the energy density (kilowatt-hrs/kg) of Lithium ion. The extra weight is not a benign problem of mass distribution. More weight requires more power to accelerate it which requires more batteries and so on. For example, the Li-ion batteries on the Chevy Volt are now just enough to travel 40miles - commuter range. The batteries appear to take up about one M^3 and about ~300lbs(?) if I recall. Replacing that w/ lead acid would take 10X the battery weight alone; such a car is not going anywhere.RonL said:I have a hard time accepting that auto designers can't produce a design that gives us what is needed by 80+ % of the population, it seems that perfection and efficiency are sought after to the extent we price ourselves out of what we want.
Putting together a lead acid system should be possible, that can produce 150 or so miles per day, ...
RonL said:Do you have any cost comparisons between the batteries? a little over two years ago i purchased twelve 12 volt deep cycle marine batteries, 100 Ah each, their weight is a little over 750 pounds, and after tax my cost about 850.00 US.
A commuter car needs 12KWh, very roughly.IEEE Spectrum said:...Then there’s the final hurdle: cost. At the moment, 12-V lead-acid batteries cost US $40 to $50 per kWh. Nickel-cadmium and nickel-metal-hydride cells for portable electronics cost $350/kWh; lithium-ion cells for the same market go for $450/kWh. Move to hybrid vehicles, though, and the price for longer-lived, more rugged nickel-metal-hydride batteries shoots up to about $700/kWh. That’s more than double the $300 target set by the U.S. Advanced Battery Consortium for automotive lithium-ion packs.
Then that's not from deep cycles, must be pulse operation (starting cars) or idling for backup. Deep cycle those lead acid's many times and they are done, time for another $800.RonL said:I have gotten as much as 6-7 years service, on some of my heavy equipment batteries, and i believe some of the negative press of lead acid comes from, people spending too little and expecting too much.:
Electric cars use an electric motor powered by a rechargeable battery pack, while traditional cars use an internal combustion engine powered by gasoline or diesel. This means that electric cars produce zero emissions and are more energy efficient than traditional cars.
Electric cars have a simpler internal design compared to traditional cars. They do not have a complex transmission system, exhaust system, or fuel system. Instead, they have a battery pack, electric motor, and a power control unit that regulates the flow of electricity.
There are two main types of electric car engines: AC and DC. AC motors are more commonly used in electric cars because they are more efficient and require less maintenance. DC motors, on the other hand, are less efficient and are typically found in older electric cars.
Electric car engines work by converting electrical energy from the battery into mechanical energy to power the wheels. This is done through a process called electromagnetic induction, where the magnetic field produced by the motor interacts with the electric current to create rotational motion.
Yes, electric cars can be charged at home using a standard household outlet. However, it is recommended to install a specialized charging unit for faster and more efficient charging. It is also possible to charge electric cars at public charging stations, which are becoming more widely available.