Large Salt water battery ideas and questions

[profitis]

if you adjust the ph of your saltwater by adding some muriatic acid you should get better results.if you adjust the ph to extreme alkaline by throwing in caustic soda or washing soda even better,then it becomes a classic zinc-air system and H2 bubbles will cling less hard due to wetting ability of alkali.throw in some caustic soda and see what happens.take caustic soda supply with you on the boat trip.

[Mungo]

So the trick becomes how to bring more air to the cathode surface ....hmmmm...of course, since this is to be a marine application, there will be a constant degree of low level agitation of the electrolyte solution, which will probably help a bit.  I wonder if I could mechanically amplify that to move the cathode a bit from time to time.

I always tend toward the mechanical, but then, thats how my head works.

[Mungo]

if you adjust the ph of your saltwater by adding some muriatic acid you should get better results.if you adjust the ph to extreme alkaline by throwing in caustic soda or washing soda even better,then it becomes a classic zinc-air system and H2 bubbles will cling less hard due to wetting ability of alkali.

so basically Im throwing in soap to break down the surface tension....

[profitis]

yes but dont throw in soap as it will form scum on the anode.throw in caustic soda,it will dissolve zinc hydroxide.

[profitis]

caustic soda will drasticly increase power output of aluminum anodes also,dont throw in too much.