This begs to be used in home storage, Thank you Robert.

I wonder if you could re-purpose Lead/acid car batteries (the shells) to run off this solution instead. The you could build a bank of them for running off-the-grid living. Then you could have a rechargeable power bank that could be easily and cheaply refreshed when needed. I really enjoy the things you come up with. Get's the gears turning!

I'm 69 and grew up in Michigan. I remember Mr. Wizard on tv. He did many types of experiments. What a wonderful time to be young. To me you are the Mr. Wizard of energy. 🤩🤩🤩

I do love your battery work, we need more safe, simple & accessible batteries.

I always love the battery videos! I wish we could have a battery design contest on this channel with this chemistry. Would anyone else be interested in that?

Love you chemistry videos. Especially on DIY battery projects such as this video being really effective and practical. This is Golden. Brilliant

soon as you said the unglazed terracotta i thought "oooh reinventing the Bagdad battery"

Sorry for the dumb question but is it possible to show recharging? Just put power in that simple and the reaction reverses? Would make a great time-lapse

So clay sewer pipe and charcoal bricketts a 55 gal plastic drum and a wad of old chainlink fence and you have a big cell . You could just drain the electrolyte into another drum to turn off . Placing the 2 drums on either end of a tetter-totter to eliminate the need for a pump. Placing the drums on their sides would shorten the lifting hight and a sliding counterweight on the tetter like on a beam scale takes the work out of lifting the drums with the tetter.

More of this sort of stuff please! Battery chemistry and technology is very interesting and it's the logical next step to generators. Your work is amazing! Cheers!

I love these battery experiments! I just wish it was that simple to store and retrieve a few kilowatts. Would be great to just have a 25L bucket lined with carbon fiber cloth filled with lugols and a huge roll of zinc foil. I guess with enough surface area it would put out more amps and you could just use a 24v to 1.2v step down to charge it.

OMG! Dear Sir, You Do so much for science popularization and mass education! That is why Your videos became an important part of my life! Great Great Thank You, Sir!

Rechargeability is super important as is number of cycles. Would definitely like to see more work on this

Excellent idea Robert. BTW, any chance you could paint your prop tips yellow? It would make it easier to see when it spins 😁

hopefully one day we might see several cells connected together being charged by your wind turbine? Another great video, thank you.

Brother you are amazing! And the stuff you come up with is incredible... thank you

I love your content. I have learned so much from your videos and presentations. You are a gift to the common self sufficient person. God bless you for all that you do. I am proud to be a supporter.

The more you emphasize how easy something is to "get ahold of," the more likely it is that some bureaucrat will make it her life's work to deprive us of it.

Yes this is exactly the battery I needed right now! Thank you so much Dr. RMS! (great initials btw)! As your compatriot Bond from across the pond has said, "I hate small portions of anything, particularly if they (are) bad" - but this looks pretty good and scalable as is, although I'll still beef it up with the literature references you mentioned. CHEERS MATE! (I also love your KOH battery from another vid, amazing, tks!)

now a practical 3D printed design just like your emergency motors would be cool. like using Zach Freedman's Gridfinity 1.0 as a base to stack the cells into. to make a 5V, 12V, 24V, 48V versions all nice and tidy, sealed up, easy to maintain and disconnect etc..

Absolutely love it. Who would have thought about going back to the beginning. LOL. That's where I started a few years ago with me studying the first voltaic pile. Sometimes the first solution is the best solution. Nuclear does the same thing with their rods. Too funny. Just like making your tea. To strong? Take out the tea bag silly. A good source for Zink? Our American penny. Once you take off the copper plate.

Used to use Lugol's solution in the lab to for the stool examination, to differentiate ova and parasites. So now you can have a battery and check to see if you have worms LOL.

This is a bit easier than the zinc sulphate method. Zinc and iodine in alcohol, evaporated yields zinc iodide. Awesome stuff.

would definitely be interesting to see this in a 3D printed enclosure (4 or 10 of them together wired in series for a 4.8V or 12V battery respectively) as well as how it reacts thermally to being charged... as always, today I learned from you Mr Murray-Smith... so you have my heartfelt thanks ;)

Rats! I was looking forward to washing my cat in Lugol's but you kyboshed that idea. lol! Well done Robert, everything old is new again. I've been buying Lugol's in tiny little bottles for a few years for my health and sterilising the rain water at $40 Aust a pop. You info has me thinking I should concoct my own and as a spin off, some home power batteries. Thank you for the idea.

Love it - please make a series using cells to meet common voltage requirements in an off-grid use!

So glad to see you doing battery stuff!😉🙂

TWIZZY! Shout it from the rooftops.!!

These videos cover every form of energy storage, including the kitchen zinc.

Excellent job. 👍😁❤️😇

Now THIS sparked my interest!

Love this video, please make a bigger one.

I built a 1.8V battery 8 years ago. with kitchen ingredients. i like everything you do. many similar ideas

After so many build videos I keep forgetting you're a chemist. LOL

I'm lucky here. Some of the rocky beaches have hunks of natural graphite as some of its beach pebbles. 1K per inch, give or take.

Excellent info.

Due to the zinc dissolving into the iodide solution until it's gone, it isn't something that will last long term.. But, it is nice to know that a battery can be made from these materials in a pinch.

Well done Robert - yet again! As a possible design of this battery, i wonder if the zinc negative lift out could become a way of also controlling amperage, as it will be limited to 1.2 volts but the more the stick is immersed the greater the current flow. A neat way to have a battery with an amperage rotary control knob!

Thank you! This is what I was looking for! Amazing! If you could also post links to the materials you used that would be helpful!

cool video. you should link to the original video in the header since it's a little difficult to find. ( 1658 A DIY Battery That Is Crazy Simple To Make ) in case anyone else is looking.

Thank you bródir, great content 👏 👌 👍

Thank you for this one , really good info .. 10in series =12v and in parallel = 1.2 A .. not bad , i just don't understand why isn't it used more often

I Just love it Rob.! /Mikael

This is pretty cool, Rob! Is off gassing a problem when charging?

That actually looks like it has potential, with an optimized design, for a home backup. Maybe a few 55 gallon plastic drums, and some homemade clay separators. But I gotta ask... have you tried to DIY a nickel/iron cell? There are quite a few of the old Edison nickel/iron cells that are still usable, 100 years in, having gone through 3 or 4 changes of electrolyte, which is just sodium hydroxide solution.

I have a dream I call FREE. Fast Replaceable Electrolyte Exchange. Instead of millions of AA sized lithium batteries to try to uncase and recycle liquids are simple and follow nature's designs. I envision a large tank with lead acid battery design but different chemistry. You could pull into a charging station and quickly drain and refill the electrolyte and off you go. The station can refresh the electrolyte using whatever is best. Wind, solar, generator or plug in. People can have a tank of joy juice charging at home to refuel and run the house. No more exploration, drilling, mining, refining, transporting and storing explosive gas and lithium batteries. Bring able to make your own fuel could be a game changer for isolated developing countries. This seems to be right up your ally. Help me Obi-wan. You definitely earned my subscription.🎉

Great video man! As always!

Beautiful! iodine is my favorite element!

This will keep police investigators busy.

Robert can you provide further links and education in building and using these on a bit larger scale if any

So the solution to avoid self discharge is to use the model of nuclear reactor where you move rods in and out 😊

Very cool. I still have the autoclave lying around for the hemp battery. I wonder is this better than hemp battery?

The 'self-discharge prevention' is just the same as the poorly named 'salt-water battery.' A battery which has no electrolyte - you add the salt water only when it's time to use. The energy density and power density are both awful by every measure, but they have one advantage: Unlimited self life. You sometimes find them in emergency locator beacons, because you can still depend on them even if your emergency beacon has been sitting forgotten in the bottom of the life-jacket locker for the last thirty years.

I see the mechanical "switch" of removing the zinc as an engineering opportunity for the EV market. Any idea on how many recharge cycles this home brewed version can expect?

I worked as a zinc plater for a plating and powder coating company. Seems like your basically plating and stripping the plating over and over as a battery, pretty cool. Im going to make it. Am I correct that the potassium iodine antiseptic available for disinfectant is the same solution?

After this video Lugol has climbed in price

Great vid mate....is there a way to make a thinner Terra Cotta membrane that might improve current flow (power density) ???

Fascinating

I was just wondering if the reaction causes fumes/gases from the zinc... or does it just dissolve?

brilliant

Does this need a BMS if you put a whole load of cells in series like a LiPo set up does?

Hello from Thunder Bay friend, ..brilliant ! why not try an icb? intermediate bulk container, ..might be a globally useful size you know and if you indexed everything you might be able to capitalize on it for all of your future bodkin thingies,....

Nice. There is clay everywhere where I am at, it's easy to find; many deposits you can just pull large glops of clay right up. Now to see how much I can store in something like a 5g/20l bucket - we're pulling two ceiling fans out of the living room that are perfectly functional (replacing with flush dimmable lights) so I can potentially build a completely self contained harvest/storage system that I can throw in the camp trailer and go.

I wonder if you could have an equally direct method of suppressing dendrites. Maybe just pull out the zinc and allow surface tension to collapse them down periodically? Have a little wiper that spins around and flattens them down into the electrode? Use some kind of pulsed charge/discharge that favors low surface area deposition?

I love your stuff

Does it require any special charging profile or will a standard charge controller work?

Awesome !! I wonder WHY there arent this sytem everywhere for grid balance, etc...??

Thank you :)

anyway to get the iodine crystals back out for some sort of recharging?

Is copper/ zink + copper sulphate electrolyte battery worth making ?

A battery so safe it heals

been looking at various things for the laser formed graphene to use as a "flux" the way you used borax, for some... reasons. ;)

Необычная батарея, спасибо было очень познавательно. Вы как-то упоминали про твердотельные батареи, скажите, можно ли в домашних условиях сделать твердотельную батарею из доступных материалов?

Good fun!

What if the zinc electrode is a kind of flexible base-electrode where the zinc could stick to it? I don't know if the same carbon fiber can be used for that, giving it the capability to be folded or rolled like paper in order to be removed from the electrolyte

What's the drawback to using it in electric car batteries then? It sounds *amazing*. Not enough output?

Thanks Robert, very useful information,but how do you dispose of it ,safely? Genuine question as the longevity of this is obviously limited and the components will need to be replaced.

What kind of discharge are we looking at? In other words, how much energy do we need to push into it to keep it stable?

Hmm... how would you make an automatic means of removing/re-inserting the zinc?

Can it be recharged with solar or wind or is it replaceing the electrodes and electrolyte

if stir if will if give more of a charge or will it reconvert if you add a charge

would this make a D cell (zinc carbon battery) rechargeable?, by just adding some lugils? into the mn02 paste?

Could this be used as a flow battery? Maybe charge in the summer and use in the winter?

Could you house it in a 3d printed cell using a non-hydroscopic filament? then use a lifting mechanism to lift the zinc out of the housing to stop self discharge?

The ceramic pot made me think of the Baghdad battery

Does a larger surface area of the cathode / anode relate to more amps (for the same single cell voltage)?

Lugol's iodide has several other uses including microbiological staining of bacteria using "Gram-staining" During which the iodine from the Lugol's solution and crystal violet form a stable complex that will not be released by decolourisation. Thus, Gram-positive bacteria will appear dark blue when viewed microscopically, whereas Gram-negative bacteria can be counterstained with safranin or dilute carbol fuchsin.

I have a question I believe I heard in 5he video that this process makes x amont per kilo gram? So to figure amount per 55 gal drum conversion to volts .. figure kilogram weight of full 55 gal drum times the kilo gram equivalent volts. Would that equation b correct to determine plz an thank you !

yeah but how much did you spend on all that vs power output?

Hi Rob. In Australia the iodine and potassium iodide are restricted chemicals in its raw forms. I can get some lugols.

I am guessing that the way you said it means that if you put a larger piece of zinc in the solution the milliamps would be improved to higher numbers 200 300 400 etc

Could you supply the amazon links ?

genius.

Can you use Povadone Iodine instead of Lugo solution?

can reproduce the latest research on the latest solid state battery

So what if someone had a car that ran off of batteries constructed similarly to your terracotta pot and went to a charge station and instead of plugging in the car, they were to swap battery fluids instead? Could the old fluid then be refreshed/recharged? It could close the gap that gasoline car drivers love to throw out when comparing refueling to recharging.

This is Really Cool Stuff, thanks for sharing! If the cells are 1.2v each, can they be built into an expired lead-acid battery in order to repurpose the battery?

Hands up, who had to drink Lugol's solution just after Chernobyl incident 😉

As a improvement to the battery couldn't you add some of your organic graphene to a batch of clay with the temper material and make conductive ceramic terracotta? Couldn't you layer a bit of normal terracotta to the outside to act as your permeable barrier? And mechanically to take the zinc out of solution, just have a manual crank. Though I can see an issue occuring where bits of zinc might break off and keep the cell running at low capacity. And long term, it might be good to discuss how to recycle or dispose the materials used when they are used up.

Could we get links for the ones you bought?