View Single Post
Old 10-06-2021, 04:06 PM   #226 (permalink)
Isaac Zachary
High Altitude Hybrid
 
Join Date: Dec 2020
Location: Gunnison, CO
Posts: 2,075

Avalon - '13 Toyota Avalon HV
90 day: 40.45 mpg (US)

Prius - '06 Toyota Prius
Thanks: 1,128
Thanked 584 Times in 463 Posts
Quote:
Originally Posted by aerohead View Post
I'm not familiar with an 'air' battery. Could you expand on that one?
A common air battery are the zinc air batteries used in hearing aids. There are other types, with aluminum air batteries being one of the best for energy power pound

All batteries need two electrodes made out of different materials so they can react chemically. If you remove one of the electrodes, namely the much heavier cathode, and replace it with air the battery can become much lighter.

This is basically how a hydrogen fuel cell works, only a fuel cell keeps supplying the anode chemical too.

The problem with air batteries is they're a single use battery. Once unsealed and exposed to air the anode begins to decay. So they might work for an emergency trip that requires a lot of electric energy in a small, lightweight package.
__________________
  Reply With Quote
The Following 2 Users Say Thank You to Isaac Zachary For This Useful Post:
aerohead (10-06-2021), JSH (10-06-2021)