A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects.
-Robert A. Heinlein
Eric Hanson wrote:
The electric vehicle is another issue that has hidden problems. Though it is true that modern electrical vehicles are pretty amazing and already have quite a few miles stored in their batteries, they too have issues.
But the issue of lithium may not be the upper limit on advanced battery designs. Right now there are some intriguing developments in Magnesium batteries which might actually hold a better charge than lithium due to their two electrons to give up to lithium's one electron. Another possibility is an aluminum battery. At this point the aluminum batteries that have been developed (though right now they are pretty much all one-off batteries, there is no mass production) have about the same energy density of a lithium battery, but it can be fully charged in just a matter of a few seconds (but I can only guess how hot that would get!). This could really improve the effective range of the car as it takes quite some time (at a minimum something like 20 minutes) to fully charge a depleted lithium battery. Getting charging times on the order of that of a gas fill up could really make an electrical vehicle practical for cross country travel. The most exotic battery I know about is the graphene battery, but this is still in the hypothetical stage. 20 years ago I was certain that fuel cells would start replacing internal combustion engines, but that has not worked out easier, even though it has some very promising qualities.
Eric
Nails are sold by the pound, that makes sense.
Soluna Garden Farm -- Flower CSA -- plants, and cut flowers at our Boston Public Market location, Boston, Massachusetts.
Some places need to be wild
Some places need to be wild
Eric Hanson wrote:Creighton,
...
But the issue of lithium may not be the upper limit on advanced battery designs. Right now there are some intriguing developments in Magnesium batteries which might actually hold a better charge than lithium due to their two electrons to give up to lithium's one electron.
Another possibility is an aluminum battery. At this point the aluminum batteries that have been developed (though right now they are pretty much all one-off batteries, there is no mass production) have about the same energy density of a lithium battery, but it can be fully charged in just a matter of a few seconds (but I can only guess how hot that would get!).
My ultimate guess is that we don't ever really run out of petroleum, but the cost of extracting and refining that petroleum becomes more expensive than some exotic battery (or fuel cell, please a fuel cell) and we gradually shift to the electrical format for vehicle production.
Did Steve tell you that? Fuh - Steve. Just look at this tiny ad:
A rocket mass heater heats your home with one tenth the wood of a conventional wood stove
http://woodheat.net
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