I like electric cars too. I get wet with nerd lust when I think of building one. I used to be on the electric car bandwagon until I learned how bad it is for the environment to produce the batteries, and how the batteries come exclusively from china. I think that switching America's or Europe's infrastructure from gasoline to electric is huge folly. That doesn't mean I don't have plans on building my own electric car.I like electric cars.
But I wouldn't buy one - I'd build one.
I know someone who has built one with lithium batteries for around $6,000 in an old Pontiac. That did around 100 miles which is pretty respectable.
Probably take a non-runner or poorly running old compact and strip it out. I'd initially use lead acid batteries because of the lower cost. A custom designed inverter using plasma TV IGBTs would be a good 4th year university project.
If powered by renewable sources then in theory emissions are zero.
However that does not include production emissions. Lithium batteries aren't nearly as bad as nickel or lead based batteries. However, lithium is mostly found in China. So we'd be moving our dependency from Middle Eastern oil to Chinese batteries. Neither are politically stable. I wish zinc-air batteries were more practical but research on them seems to have stalled. As zinc is very common in the Earth's crust.
I *don't* like how many commentators on batteries "hope" mass production will lower the costs. I don't think it will.
by Aaron Carman
by Jeff Child