I used gum arabic from an art store to mix with the salt water, (also NaOH works better), to curtail anode oxidation. The NaOH was about 10% and gum arabic about 20% by volume with distilled water. Activated charcoal will double power output compared to graphite. Cells cannot be stacked though. They have to be separated because of heat and internal resistance. Output for something similar to this would be 2-5A. Refresh electrolyte periodically. A cell of this type with NaOH is about 1.2V, similar to other alkaline cells. Thanks and happy hunting.

@MyEngineeringProjects

2 жыл бұрын

Sounds like you made some good progress

@evanriddle1614

2 жыл бұрын

@@MyEngineeringProjects thank you. I'm somewhat proud of having made it this far. But arabic senegal comes from a tree, tying us to locusts swarms and drought in Africa. No free lunch i guess, right? Could it power a vehicle or provide hours of standby? I've ran a cell for 36 hours before just finally shutting it down. My rants fall on deaf ears. Keep the faith and make small batteries just to amuse and entertain if nothing else. Peace out and thanks again.

@blainecelestaine4543

2 жыл бұрын

A battery 🔋 that can be built diy* with ready made easily sourced materials will be the most revolutionary invention since the wheel . Please continue pushing the envelope.

@1966MrAlex

2 жыл бұрын

Could you make a video. Sounds nice to see.

@evanriddle1614

2 жыл бұрын

@@1966MrAlex The one problem with using gum acacia is its source. It comes from trees in Senegal, mostly, and is subject to locust swarms. I should do videos on what I've made. But in practical terms it is messy, cumbersome and more difficult than just plugging something in. There are many ways to make a battery. Thanks!

Well done. Nice try! It would be nice if you continue your work and make a series about salt water batteries. For example, study of different plate sizes, charge/discharge time and capacity would be interesting. Thanks :)

@MyEngineeringProjects

3 жыл бұрын

Thanks. Yes I have 3 videos in the salt water battery series. You can check them out on my channel page.

Están muy grandes para poquito resultados amistad pero bacano por q muestra los vídeos para que aprendan todo el mundo

مبدع حقا ❤

Desde Colombia 👍🏻🙌🏻

Nice vedio

@MyEngineeringProjects

3 жыл бұрын

Thanks, glad you liked it.

Nice!

@MyEngineeringProjects

3 жыл бұрын

Thanks!

@sampleoffers1978

Жыл бұрын

Itsa juicy lasagna

Mochelas en 2 las placas d aluminio para 2 q Leda el mismo resultado muchachos 👍🏻

You said that you short circuiTed the battery, how did you do that?

@MyEngineeringProjects

2 жыл бұрын

By taking each lead to my meter With almost no resistance that is effectively a short circuit

Could the brine from desalination plants work to make these batteries

@MyEngineeringProjects

Жыл бұрын

I don't see why not. You may have to adjust the saline levels a bit.

Bravo.......ion transfer medium..........only ions ...........cheers

@MyEngineeringProjects

Жыл бұрын

Thanks

I wonder if oil/wax can be heated up, and then the heat produce a current to charge a battery without combusting the oil/wax

@MyEngineeringProjects

Жыл бұрын

Heat to an electrical current can done in several ways but I see no way with oil/wax without combusing. One way is mechanically by using something like a Sterling Engine. Another way is by using the Peltier effect.

@sampleoffers1978

Жыл бұрын

@@MyEngineeringProjects I guess no known additive is possible to raise the boiling point of oil or wax. I read about friction heaters and wondered if current could be gained by that heat, but it's not sounding good here.

Is this worth it to scale up for off grid ?

@MyEngineeringProjects

2 жыл бұрын

Salt water batteries have a lower energy density compared to other options. They also have a lower C rating. I talked with just one commercial manufacturer years ago and I think they have quit. In order for them to be scalable, there needs to be some advances in the technology first. It's certainly possible and they have a great advantage of being about the safest battery available.

Where did you get the graphite pieces from

@MyEngineeringProjects

Жыл бұрын

Product link is in the description.

hello idont used to read back the commentaries but, if we can make that battery bigger,it should star a car?

@MyEngineeringProjects

7 ай бұрын

I have seen only one commercial salt water battery. It was made for the solar industry and it sat on a pallet since it was so big. Salt water batteries have a relatively low energy density. To make one big enough to start a car it would have to be much larger than a lead acid battery.

@db575

7 ай бұрын

so your project of graphite and alum with salt water its n ot avaible for cars batteries ok anyway tx

Anode is more negative cathode is positive electrolyte is the saltwater then the metallic path it will create a Potential which is serve like a battery, it also a process of making battery

Current is important that voltage

I guess it doesnt matter if you increase amps or voltage, what it matters is voltage x amps = watts. If you would have 3v x 20 milliamps = 60 milliwatts. If you have 0.6 volts x 100 milliamps = 60 milliwatts

@MyEngineeringProjects

2 жыл бұрын

That's right V=IR

@MyEngineeringProjects

2 жыл бұрын

Sorry, P=VI I was solving another problem and miss typed my previous reply

@Suni777

Жыл бұрын

we can easily get voltage from salt water from series connect, but not amps that's why he shown this thing

Discharge time duration?

@MyEngineeringProjects

4 ай бұрын

I have not yet performed an Ah test to determine the energy storage capacity.

@akhtarnadeem621

4 ай бұрын

@@MyEngineeringProjects Okay, thanks!

Sir your first rap will cover aluminuim then you get good voltage plees try it's indian. you will grow ( my think for my all world& all human)

@MyEngineeringProjects

Жыл бұрын

Sorry, I don't understand what you are saying.

@Suni777

Жыл бұрын

Hey man , voltage we will get current is important, if you get better current no need to worry about voltage

Is there any chemical reaction happening here to drive the current?ie does either the graphite or the aluminium react and degrade irreversibly? If they don’t then this becomes a perpetual battery as long as the cloth with brine remains wet isn’t it?

@MyEngineeringProjects

Жыл бұрын

Yes there is a chemical reaction. It's a rechargeable battery. I've made several salt water batteries and corrosion is a problem. This is why I tried aluminum and graphite. It's still corrodes, but slower than other materials used.

@sreenathc

Жыл бұрын

@@MyEngineeringProjects Excellent….Does this mean that this battery discharges over a much longer time period compared to other metal combinations?

@MyEngineeringProjects

Жыл бұрын

The corrosion rate refers to how durable the battery is over time and not necessarily related to a discharge rate. In order to find that you, the battery would have to be tested.

sir this time also you had to charge the battery

@MyEngineeringProjects

2 жыл бұрын

You don't have to charge upon assembly to get a voltage.

Cloth separators will fill up with hydrogen and seriously diminish the current capability.

@MyEngineeringProjects

Жыл бұрын

I have not seen this issue with mine.

@mikebond6328

4 ай бұрын

What should be used in its place?