Quote:
Originally Posted by rusnak
I see no causal connection between the development of the ICE to it's obsolescence.
In order to support the theory of EVs being just around the corner, batteries would have to become as efficient as fossil fuel in order to store the amount of energy contained in a tank of gas in a battery of the same size. And then there is the problem of generating that much electricity, not just storing it.
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Yep. Look at my Tesla Power-Wall thread. Either you have reasonably priced batteries, low weight or long life. The fall off in battery capability in the power-wall shows the problem. 3000 cycles may mean it will last 10 years, but after 3-4 years, it is down to 60% of its original capacity.
6 kWh of usable capacity Advanced Lead Acid batteries with 3000 cycles costs about $2000. A Power-wall with similar usable capacity costs around $3500. Don't get me started on the equipment to make use of lithium batteries.