Homemade Gelatine Battery
@David
Thanks for making one of these "gelatine" type cells. I am using copper and magnesium instead of copper and aluminum and getting between 1.2 and 1.6volts out of the cells. I don't know why your voltage was so low. These cells should produce the same voltage results as just sticking the electrodes in a cup of the liquid electrolyte. The amperage has to do with the surface area of the electrodes BUT these cells don't produce much amperage.
Here is the recipe that I used for the semi-solid electrolyte
(1) cup distilled water
(1) tablespoon Knox Gelatine
(1) teaspoon McCormick Alum
Boil and stir until completely dissolved
Refridgerate until solid
I had similar results as you had with the freezing and "charging". I also found out that you can restart the cell by removing the electrodes, melting the gelatine (a couple of seconds in the microwave oven), and freezing it again into the semi-soild. It is interesting stuff to work with.
Here is a "how to" video of the work so far:
YouTube - Homemade Gelatine Battery.ASF
@Ibpointless
I worked with your "Glue Battery" more and found that if you put it in a small plastic bag that it will not dry out. I show that in the video also. It is still running that LCD clock.
Lidmotor
@David
Thanks for making one of these "gelatine" type cells. I am using copper and magnesium instead of copper and aluminum and getting between 1.2 and 1.6volts out of the cells. I don't know why your voltage was so low. These cells should produce the same voltage results as just sticking the electrodes in a cup of the liquid electrolyte. The amperage has to do with the surface area of the electrodes BUT these cells don't produce much amperage.
Here is the recipe that I used for the semi-solid electrolyte
(1) cup distilled water
(1) tablespoon Knox Gelatine
(1) teaspoon McCormick Alum
Boil and stir until completely dissolved
Refridgerate until solid
I had similar results as you had with the freezing and "charging". I also found out that you can restart the cell by removing the electrodes, melting the gelatine (a couple of seconds in the microwave oven), and freezing it again into the semi-soild. It is interesting stuff to work with.
Here is a "how to" video of the work so far:
YouTube - Homemade Gelatine Battery.ASF
@Ibpointless
I worked with your "Glue Battery" more and found that if you put it in a small plastic bag that it will not dry out. I show that in the video also. It is still running that LCD clock.
Lidmotor
Quite a deal for 240Ah. I have a hard time to get even dead batteries. My oldest one is about 11 years and all at 97-98% capacity. All have been salvaged and some were sitting at 2-3V. There is no reason for your battery to die within 6 mths. Worst batteries are those used to start the engines. During cranking 6 - 8 or more cylinders in sub zero temp. they're getting seriously violated. Commercial boosters are another "killers". When batteries are used as a storage and with respect to their C20 rate they should last ages, not just couple years. I would grab a few if they'd have a deal like that around here. I have to pay 5 -10$ to get a dead one from a scrap.
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