I've read a lot of material about zinc air batteries, many firms successfully made their own prototypes of rechargeable zinc-air batteries. Is it possible to do it at home?
According to this video it is possible to make a zinc-air battery. I just don't know if it is rechargeable.
You just need a zinc sheet for the negative electrode, and a steel wool for the positive electrode separated by an isolator soaked in sodium hydroxide as an electrolyte.
I've been reading a little about zinc-air batteries and I can confirm that this configuration does not produce a rechargeable battery.
The rechargeable zin-air battery technology is a very recent one and I don't believe that we can find anything about how to do it at home in the recent future.