Re: Lithium-Battery Cars May Deliver 300 Miles Per Charge

Andy writes:

If one's desire is to go 300 miles and hold a speed of ,
for example 60 mph, the problem comes more into focus.

It takes a certain amount of energy to do that. Whether it
comes from oil, or from electrical energy that has been
generated by burning oil, the end requirement is the same.

Burning the oil directly ( as gasoline) in an internal
combustion engine creates more joules per "gallon" than
burning it at a generator plant, transmitting it hundreds of
miles over wires, converting it to compatible voltage , storing it
in a battery, and draining the battery into an electric motor......

Hence, to get the SAME performance as a gas engine, the
cost of the energy which is put into the battery will be greater...

If, however, you only want to go 30 miles at 30 mph, you get
the same answer. A smaller, more compact, more fuel efficient
gas engine can do this, still at a lower total energy cost than
battery electric which provides identical performance.

You PAY FOR THE ENERGY USED. Efficiency makes you pay
more for multiple conversions than a single point useage.....

So, the answer is NOT to invent new technologies but rather
to decrease the performance, that is, SPEED AND DISTANCE.....

If everyone did that, there would be no discussion. The point
is that people really want the HIGH END PERFORMANCE without
having to pay for the extra energy it uses...

I would suggest that those of you who want to discuss this
in a more professional manner, go over to sci.electronics.design
where you can share your ideas, and have them critiqued , by
professsionals who are very skilled in this area.

On soc.retirement you get a LOT of advice from a LOT of
people, most of who have no real credentials at all except for
reading a Popular Mechanics magazine 10 years ago......


Just a suggestion...

Andy in Eureka, Texas

.

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