Al-air batteries look like an interesting technology. Apparently they are
quite powerfull but cannot be electrically recharged. No problem for me if
I knew how to build them (since I tend to have a lot of aluminum cans
around - I drink a lot of beer...).
I did a google on this subject and only found the basic classroom stuff on
how to make a simple 1 volt 100 ma battery. I would like to see more
details on how to make higher powered batteries that could power my electric
vehicle (Penninger recumbent trike with a hub motor).
I'll be experimenting with this stuff for a while, but a link to a good web
site would be a great help. Got one? Please post...
I guess I'll start with the "activated charcoal" and salt water paper towel
trick - but I'm thinking it can be done better than that. Although... salt
water isn't a bad idea since I only live a few blocks away from the ocean.
How about citric acid - like orange or lemon juice?
I tried a little can battery about 2 years ago and got about a half a volt
out of it but lost interest. I'm gaining interest again and thinking of
using a series of aluminum plates to make 36 or more volts at some
reasonable amperage. Suggestions?