cheap selfmade DIY electrical conductive carbon graphite powder for batteries

[onthecuttingedge2005]

here is an idea I was pondering.

make a solution of liquid graphite and use a square sponge to soak up the graphite solution, next, take a pair of tongs and dip the soaked sponge into a tub of liquid refrigerant to freeze dry the graphite into the sponge.

test for conductivity and capacitance.
test to see if sponge can be compressed while saturated with graphite solution and then freeze dried into compressed state to promote higher densities of surface volume.

just my 2 bits
Jerry

[Hope]

and....... who did the experiment,  who is making use of this now??
grate stuff here,     hope someone is using this idea to build out next energy temp storage devices

[MasterPlaster]

In England we have shops that sell anything for £1. They sell Zinc batteries. Also most Chinese products that include batteries are zinc batteries.


@Stefan, How do you put out the burning brikett? Do you put water on it?

[Paul-R]

I can't really see what is going on in the pic in post #1.

Could we have a circuit or description?


Also, you know the cockpit voice recorder and flight data recorders fitted to aircraft. They have an underwater locator beacon on the end. This sort of thing:
https://en.wikipedia.org/wiki/Flight_recorder

The problem is the battery only lasts 30 days. Would you be able to create a battery which uses seawater which would then last a year or so? (Don't forget that it will need to be tested under the most appallingly savage conditions).