DIY Copper Aluminium Battery - 800 mA

[@brianreinthaler6749]

You may want to discuss the effect of depassivating the surface of the aluminum immediately before putting the battery together. Either by dipping it briefly in hydrochloric acid or sanding it with 1000 grit sandpaper. Both methods would increase the surface area of the aluminum on a microscopic level. I would expect that both the voltage and current would increase. Probably current more so than voltage. It might be fun to experiment with depassivating the aluminum to demonstrate one of the many things that affect battery performance. I really enjoy your videos.

[@ludicscience]

Thats great advice thanks! I definately will try that.

[@ohanneskamerkoseyan3157]

Sodium hydroxide in the electrolite may also help depassivating the surface of the aluminium

[@m.k.8158]

@@ohanneskamerkoseyan3157 Potassium Hydroxide might be even better:and it's used in many commercial batteries.

[@evanriddle1614]

​@m.k.8158 the aluminum air battery uses KOH with activated charcoal and paper towel to make about 1.2-1.3V. Keeping fresh electrolyte going to it keeps it going until aluminum dissolves but if it dries out or loses potency it's toast.

[@williamsydney535]

Aluminum is a poor choice as it is a Neurotoxin... Making the water 💦 toxic

[@mohammedalathari9635]

Yes more of that please, this was interesting. thank you

[@ludicscience]

Thanks you

[@farrokhmirbaha2627]

Your video is more than interesting, Ludic. It is a most valuable and spot on demonstration of Electrical Engineering knowledge. May God bless you and elongate your presence for us, your students, for what you do. Aafareen!

[@ludicscience]

Thanks! 👌

[@jaiprakashn9686]

Ludic Science:- the 2nd video I am seeing on copper/Alu battery, good details, presentation, Demo, with simplicity, 👍🏿👍🏿👍🏿

[@ludicscience]

👍

[@adamtembo3880]

The explanation is simple and clear. You're a teacher. Thank you so very much ❤❤

[@KipIngram]

I'd like to have seen more on the full capabilities of the cell. How long can you charge it and still get reasonable performance? How quickly does it degrade as you cycle it again and again? Etc.

[@nasimesteki6072]

Hi ,thank you for this video . May I ask you to write the reactions that happen in this battery . Thank you

[@trench01]

How long would they last. when you do make another video about it. Maybe a step by step how to make one with regular household items to use in emergencies.

[@felipehcraftgamer4193]

You could make ome Stacking some copper coins into paper separators and aluminium foil Make 4 or 6 of then stacked and you can light up a led

[@GiGa_Side]

Why you didn't use carbon and almunium electrode if it is giving about 1.5v

[@himselfe]

Maybe he was payed off by big energy to prevent us from finding out the secret to free electricity!

[@chrisingram7277]

Probably to get more surface area as he needed a foil product

[@ludicscience]

( ͡° ͜ʖ ͡°)

[@ludicscience]

That is básically the reason

[@osmanfb1]

@@ludicscience how about using carbon/graphite paint put on a paper or thin plastic and rolled with aluminum foil? C paint has large surface area. thanks for your nice videos.

[@FaysalKhalashi]

This really was a good educational video. Btw.. i would love to see more of this battery related video. And how about using a joule thief and light a LED with just a single cell of this battery..

[@ludicscience]

Thanks, its good idea to add joule thief

[@evanriddle1614]

Though aluminum dissolves in salt to create power, repeatedly charging it seems to "form" the intercalation not of aluminum but of sodium? Is this essentially a sodium ion battery?

[@MitzpatrickFitzsimmons]

it would be neat to see how long it could light a led

[@taaskeprins]

Using salt (NaCl) gasses chlorine gas out when charging. Ventilate well!! Best results with carbon(+) and aluminium(-) electrodes. Try limit the amps when using a lab power source and play with the voltage. Aluminium is eroded by NaCl.

[@VaibhavBirit]

How many charge discharge cycles you can get from this battery

[@davidmon7167]

this carbon is a core of a saline battery? can you make other batery or some thing whit it ? is posible use that carbon for a electric engine?

[@ludicscience]

Yes is a Core yes you can use it

[@BRPPictures]

What is the electrolyte you are using?

[@neatt3815]

What's happening when it's getting recharged?

[@absolute___zero]

Interesting. So when you recharge the battery the copper and aluminum are restored back to pure metals? But that can't be possible because electrodeposition of aluminium can only happen at 1000 degrees C. Does it mean that only coper electrode is restored and aluminium is unchanged?

[@thekillerdog5228]

The alloy would need replacing in time.

[@conceptcreation]

Is your battery rechargeable???

[@Loo444]

How long does this battery last?

[@paulanthonybridge5741]

It doesn't !!!

[@era7928]

It is a capacitor.

[@m.k.8158]

@@era7928 nope, it is a battery, but the 2 technologies have some stuff in common.

[@imikla]

I like your videos, but it is very frustrating to listen with headphones when the volume between left and right channels is so far out of balance.

[@ricksummerfield784]

I made a series if batteries using 16mm magnesium rod inside of 19mm copper tube, it had high amperage, but the electrolyte got hot after a few minutes and the current was hard to control

[@ludicscience]

Thanks, where did you get the magnesium?

[@ricksummerfield784]

@@ludicscience I used a fire flint striker, they are high in magnesium

[@achachm]

@@ricksummerfield784 Thanks! I found that the sacrifice anode rods for solar heaters are also magnesium

[@mr.fixcamer]

He keeps it simple. We too can understand

[@DesignMakeFix]

What if instead of the electrolyte solution, we dip the electrodes into the sea.. will the battery still work or will the electrons have trouble travelling that long distance?

[@ludicscience]

Will have trouble

[@stourleykracklite7663]

Great video, Ludic! Before I try may I know if there will be any off-gassing? I'm concerned about hydrogen and chlorine. Thank you.

[@felipehcraftgamer4193]

If you overchsrge it then you have some big problem This battery design the charge voltage depends on the ammount of salt diluted on the water

[@utubefrog09]

I believe what you made here is an Electrolytic capacitor my friend. As always, enjoy your videos. Thanks.

[@ludicscience]

Thanks!

[@m.k.8158]

not quite:an electrolytic capacitor would not self-produce power, nor would it keep producing much power after discharging-however, there are similarities between batteries and electrolytic capacitors. If he used 2 aluminum electrodes and sodium bicarbonate(sold as baking soda), this would be a form of an electrolytic capacitor. Note:borax will work instead of baking soda. The resulting capacitor would have to be formed by passing a limited dc current through it so that one of the plates forms an oxide layer. It will then work as a electrolytic capacitor.

[@davidprock904]

Alum battery, no salt

[@knoxpruett1889]

Your video's are great!

[@modeamity]

Good explanation

[@ajbufort]

Great video, thank you!

[@billk9628]

Take a penny and a nickel and a lemon. Slice two slots in the lemon, insert penny and nickel, read voltage. Should read about .5 volts.😊

[@ImTheReal]

Thanks for sharing

[@ludicscience]

👍

[@ulpijana73]

I guess the polarity is copper (+), aluminum (--)??!!

[@ludicscience]

Yes

[@shanecunden8116]

Very interesting and informative, thank y

[@vasyllizanets7954]

Thanks.

[@ludicscience]

👍

[@shamalafridi5703]

❤❤❤❤❤ 🎉🎉🎉🎉🎉 pl keep it up.. With my best wishes

[@deep_black_p1562]

can you make very usefull battery home made :)

[@SAI_LINGESH]

When I charged this battery my electrolyte water turned into green colour later like after 5 minutes turned completely black in colour and my power supply exploded and damaged.

[@ludicscience]

What voltage?

[@SAI_LINGESH]

@@ludicscience 4.5 volt and 1.5 A

[@ludicscience]

Too much voltage

[@samsonperera9872]

Very informative

[@ludicscience]

Thanks

[@paulanthonybridge5741]

Lost the voltage damn quick, didn't it........maybe it could miraculously drive a LED for half a second !!!

[@ludicscience]

Not enough voltage for an led! Hahaja

[@shahjehankhan4741]

Good

[@beanapprentice1687]

The world's soggiest battery!

[@arnavmohan959]

Where did you learn how to be an electrical engineer? What’s your iq? Lucky