I used few interesting design with zinc / aluminum + active carbon and the result is quite interesting.
E.g. 8x8cm ALU plate - saltwater moistered paper - active carbon == 0.7V / 150mA.
Something like this:
http://exo.net/~pauld/activities/AlAirBattery/alairbattery.html
Main problem:
I can not hold the capacity of this battery.
Current will drop in cca 25 sec, to 10mA and it keeps falling.
I understand that the carbon is the problem but what to do to prevent this fast power drop.
hi
just look under walts water powered cells in the old archieve
greetings
walt
Quote from: V_Schaub on September 23, 2010, 07:18:10 AM
I used few interesting design with zinc / aluminum + active carbon and the result is quite interesting.
E.g. 8x8cm ALU plate - saltwater moistered paper - active carbon == 0.7V / 150mA.
Something like this:
http://exo.net/~pauld/activities/AlAirBattery/alairbattery.html
Main problem:
I can not hold the capacity of this battery.
Current will drop in cca 25 sec, to 10mA and it keeps falling.
I understand that the carbon is the problem but what to do to prevent this fast power drop.
Hi Walt.
I send you email regarding this topic.
I could not find much info on your design.
I searched under Walts, Walter, AG cell, Hofman.
Is there some general topic on your battery design ?