Aluminum Air Battery Build 2.0
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- čas přidán 5. 08. 2024
- Hi everyone. Welcome to my second video experimenting with aluminum air batteries. I’ve made lots of changes to this version including a completely different acidic electrolyte. This one is bigger and stronger than the first one. Enjoy!
Want to learn more about aluminum air batteries? Check out my course - www.udemy.com/course/aluminum...
How To Make an Aluminum Air Battery - • How To Make an Aluminu...
Wanna help keep me caffeinated - www.buymeacoffee.com/mechgone...
Materials I used to make the battery.
- Activated charcoal - amzn.to/3wmEgCT
- Potassium chloride - amzn.to/3wkYKff
- Vinegar
- Powdered citric acid - amzn.to/3fA3lUP
- Copper tape - amzn.to/3cISje6
- Saran wrap
- Popsicle sticks
- Aluminum foil
- Paper towel
- Packing tape
- A deck of playing cards
- Card cutter
- Scissors
Intro - 0:00
Changes to the battery - 1:09
Building the battery - 4:11
Testing the battery - 7:18
Outro - 9:49
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Disclaimer: This video is available and intended for educational and informational purposes exclusively. Due to factors beyond the control of Mechanic Gone Rogue there is no guarantee as to the accuracy, applicability, or fitness of the information, tools, and techniques portrayed in this video. Nor is there any guarantee against the improper use or unauthorized modifications of this video and the information in it. DO NOT TRY THIS AT HOME. Mechanic Gone Rogue will not be liable or responsible in any way for any injury, property damage, or loss of any kind that may result from the use of or reliance of the information in this video. You are using the information, tools, and techniques seen or implied in this video solely at your own risk. - Věda a technologie
I like the improvements that you got from the comments. Great video
Glad you like them! Thank you very much.
Can't wait for 3.0
Absolutely. Me too. Hope you enjoy it when it does come out!
Very interesting and well- put together!
Many thanks! :)
Using your electrolyte to turn you charcoal to a slurry is very much like what we do in lead acid batteries. The lead oxide is moistened into a paste using a solution of sulphuric acid, which is our electrolyte! You could take this a step further use stainless steel, or perhaps even aluminum mesh to press your charcoal paste into improving the plate conductivity!
That's very interesting. I didnt know that was how they that. Just a thought if I were to add a metal grid of some kind to the cathode would that not cause a side reaction with the carbon and electrolyte. I'm just thinking that because the anode is also a similar metal?
This is awesome, I have an upcoming school project that I will be using your design as inspiration for.
Wow that's awesome. I'm really excited to hear that. For me its rewarding to know that what I am making is helping people. So big thanks for taking the time to let me know. Best of luck with your project. Cheers!
Ya that’s rly cool that you can use this vid for a project. I hope everything goes well for you.
If you would use just K2CO3 with water as the electrolyte you can almost get 1.3 to 1.4 Volts per Cell out of this battery !! Just try it out ! Good luck !
Regards, Stefan.
Keep up the good work! Great job on the zooming in and slowing down so we can see what your doing. Good audio too. A topic suggestion, I haven't seen a video that showcases the different diy materials that you can make anodes and cathodes with. I like that you don't want to go straight to the dangerous stuff.
Thanks for your comment @darren cox. Really appreciate the feedback on the changes. Lots of people like to criticize, but few follow up. In later videos I did switch to using graphite sheet as my cathode, but I haven't really found anything to change up the anode with. Did you have anything in mind?
Very cool stuff!
Liked and subscribed!👍
Thanks for the sub! Glad you liked it. Cheers!
That is very cool!
So glad you liked it. Thanks for letting me know. :)
I think I see a posible improvement. The battery layers could act like the layers of a capacitor, allowing part of the current to go from the input to the output in more of a straight line, thanks to quantum physics making electrons jump from one layer to the next. You could still have half the layers having current going in one direction and the other half in the opposite direction, but have them stacked so the half going in one direction is below the half going in the other direction, and use a bit more aluminium and clingwrap to do the pairing of the sides. It could be a concentric U-shaped stacking, or sidewas-overlapping U-shaped stacking, depending on how you do the connection between each pair of layers. i.e. if the odd numbers represent current going in one direction and the even numbers prepresent current going the other direction, then the concentric stacking would be 13578642 or 75312468 (or mirrored, 24687531 or 86421357), and overlapping would be 13572468 or 75318642 (or mirrored 86427531 or 24681357). I hope that makes sense. It might not make a difference, my understanding might be incomplete, but I think it's worth testing, at least.
good, good.👍
Great work. Maybe you should consider adding starch with your activated charcoal. Its just my suggestion. It's so nice seeing you at work.
Hi there. Glad you enjoyed my videos and thanks for the suggestion. Just out of curiosity what inspired you to suggest adding starch to the charcoal?
If you need any academic papers to help your research let me know. I have made my own batteries using MnO2 as the ORR catalyst using hydrothermal synthesis. Let me know if you want some. Applied correctly it is as active as platinum and a battery I made using this catalyst got up to 250 mW/cm2
@UC Santa Barbara PhD Student. Wow, that is very generous of you. Yes I would gladly accept any papers you can give me. Looking them up on Google can be a pain sometimes. First time I've heard about using MnO2 as the catalyst. Definitely would like to learn more about it. I've got an email featured in the about section of my channel. You can use that to contact me. Thank you very much for the offer.
@UC Santa Barbara PhD Student do you have a video explaining that? Would it resemble this solution czcams.com/video/3EKmetdjE-c/video.html ?
Wow awesome 😃😃😃
Thanks a lot. Glad you liked it!
Hola, @Mechanic Gone Rogue !!
Es genial. Y no lo digo por tu mejora, que por cierto, es muy buena, sino porque sos un verdadero investigador, y serio además... Seguramente te vas a dormir y seguís pensando en cómo mejorarla, jaja...
También hago mis baterías, desde hace unos años. Prueba y error. Estoy tras baterias de electrolito seco y electrolito sólido, o ambas a la vez... Tengo baterías de arcilla con oxido de hierro mas sal comun. Y estoy dándole mucha atención al aluminio y carbón o grafito. Materiales cotidianos, y de bajo costo... Lo mejor es conseguir el máximo de diferencia de potencial entre metales... Ir probando con baterías de una celda y distintos electrolitos. Al igual que vos, aprendí que no hace falta bombardear los metales con tanta acidez, o mezclas que terminan anulando lo que buscamos...
Y las estoy haciendo del tamaño de 1,5 cm3 o incluso más pequeñas!!). Papel de aluminio, grafito y el electrolito, miel de abejas (sí, funciona!!)... Es que la idea, es lograr que el electrolito se seque y, mejor aún, se cristalice. Ahí está la clave, creo.
Cuidado cuando hay más de dos metales en contacto con el electrolito. Puede "contaminar" la prueba. Por ejemplo cuando utilizamos el cobre como cables o algunas mallas metálicas de niquel o cobre, como conductores, y los otros dos principales para lograr el voltaje...
Es ir viendo para qué lado van las comerciales, e ir tras sus conceptos básicos... Leer sus "letras pequeñas", ver qué nos esconden para lograr el éxito.
Mucha fuerza!!!
Saludos desde la Patagonia...!!!
Hey man, great video, a big improvement was achieved in this second battery, congratulations I'm impressed, because increasing the current is very important, again thanks for sharing, a suggestion, I think you could use the proper aluminum to replace the copper, hugs.
Thank you very much! Although I think I've found an even better conductor than aluminum since making this video. It is graphite sheet. I explored the concept in another video. Hopefully my third battery will be able to benefit from it. Cheers!
Can you also make this by creating easy replaceable layers that you can easily remove and insert, like in stacked plastic id cards holder like a tray?
Hi! I commented under your last video before watching this one. I see you already implemented some of the same things I suggested.
Maybe you can build a third version that additionally also comes with a catalyst (such as mixing low micron titanium dioxide powder (or MnO2) into the graphite powder) and a reducing agent (/axioxidant) to reduce the amount of aluminum oxide build-up (such as e.g. ascorbic acid / vitamin C mixed into the electrolyte) and add some acetone to increase the solubilty of oxygen (or any other cheap gas solvent, if you can think of something better and less volatile).
In case you have some epoxy and fiberglass lying around, you could also build more reusable cathodes: graphite powder + TiO2 (or MnO2) directly mixed with epoxy (--> the graphite in this solid sheet should also solve the conductivity problem), saturate the fiberglass layer with this mixture, then sprinkle it with dry graphite/TiO2 (/MnO2) powder before curing, in order to leave it with a rough surface after it's hardened. With a solid/non-permeable cathode, you would of course need air channels on the "electrolyte side" of the cathode.
Two potentially stupid questions:
1. Do you think it's important that there is some kind of separator between "air side" and electrolyte or can oxygen be dissolved in the entire electrolyte (e.g. under pressure)? The reason why I'm asking: I know there are simple DIY "McGuyver" batteries made from an aluminum can, filled with salt water and with a central carbon or copper cathode. Of course this way only the top of the electrolyte liquid is exposed to the surrounding air (=with its partial O2 pressure), so not much oxygen will be dissolved, but it seems to work in principle, therefore: do we need an air cathode that doubles as a separator only to prevent leaking and in order to achieve a greater oxygen diffusion area or does the separation have an added purpose, i.e. would more oxygen in the solution (with diffusion to the anode) be a problem for some reason?
2. When several "cells" (anode/cathode pairs) are connected in series, can they share the same electrolyte or does it have to be physically separated between "cells"?
Hi there @ Christian S. Thank you so much for your brainstorming comments. Some of your suggestions involving titanium dioxide or magnesium dioxide have already been on my radar for a while. Only because others have commented in similar fashion. I appreciate this though, because it indicates to me there could be something there if so many people are talking about it. The use of acetone is new though. I had considered it's use for an organic non aqueous electrolyte, but didn't follow through because I felt that the solution would be too volatile. I didn't really consider that it would increase the solubility of oxygen. I might have to revisit that. An epoxy cathode could have potential as well.
In answer to your questions.
1. As I understand it (I might be wrong on this) the oxygen is absorbed by the carbon source and transferred chemically to the aluminum via the electrolyte. I don't believe that the electrolyte itself absorbs any oxygen. As long as the air side is not prone to mixing with the electrolyte, I don’t think any kind of separator is necessary. In my designs the air side is always on top of the electrolyte. In the examples you cited. The Al/Cu is a galvanic cell so I don't think atmospheric oxygen is a factor in it's reaction, and as long as the two metals aren't physically touching they will produce a voltage. The use of carbon (I assume a graphite rod?) as the cathode in that design (where it is fully immersed in electrolyte) may be a different reaction. I say this because in my latest experiments I began using graphite sheet instead of activated charcoal and found it’s performance is not tied to exposure to oxygen. I’m wondering if it is functioning similar to a lithium-ion battery, but I don’t know how to prove it. At least for now. Nonetheless it is interesting.
2. I haven’t tried using the same electrolyte for all of the cells, but I would assume like other batteries that would not work. Probably a divider (like a car battery design) would have to be used between cells.
Hopefully, that answers your questions. Thanks again for commenting. Cheers!
Way to go Tesla 😜
Aluminum Air Battery Build 113.5
By inserting these new pack of upgraded aluminum air battery into our car we managed to pass 200 miles.
I may have missed it, but how long does this battery last?
I wonder if placing carbon coated spacers in the air gap to increase surface area, and then pushing normal air between the gaps with a fan would improve performance.
This is so much better without the music!! Keep up the good work!
Thanks so much for letting me know. Glad you enjoyed the video!
For another version try a single cell and use a Joule Thief design to light leds. Cn be made much thinner and cruder and still light up.
Hey ! Objectif 500 mA 5V for the V5 Air battery ?!
It' a really good project you share to us ! Thanks
i think you should reduce it to about 4 volts then make multiple versions connected in parallel for example 3 giving 4 volts connected in parrallel then redo it 3 times connected in series to give high amp at 12vdc and if it is consistent non stop connect it too a 12vdc to 110/120 - 220/240 vac invertor for house hold power if you get modified sin wave at 50 hz 120 or 240 you can easily operate small appliances like tv, laptop, coffee machine, lighting
if you invest more in a heavier duty inverter and get a true sin wave 60 hz inverter maybe power an AC unit or fridge (things with compressors have huge crank start power draw)
Thanks for the video I liked and subsecribed but how much time takes to discharge please ?
Hey @Shalfi Anouar. So glad you enjoyed my video. This battery only lasted for about 1 day because the electrolyte dried up. Previously I kept one of these batteries going for a couple weeks by adding more electrolyte when it was needed. Hope that answers your question. Cheers!
It was a cool project. How much power does your battery prodeuce in mAh? Have you tried to see how long it keeps the light on for example?
Hey there glad you enjoyed my project. I'm not sure of the mAh on this one, but I have improved on the design since this video was posted. I actually just released a video were I try to recharge an improved version of this cell. It's mAh rating is 26 if I've got my math right. There's more details in the video so check it out when you can. I think you will enjoy it. Cheers!
nice video!! just a question, how long does it last?
3D printer would upgrade the build ease for making the layers
Great minds think alike. You have no idea how many times I thought about that when I was designing the structure. Definitely will be getting one in the future when my budget allows it. Cheers!
I could make a cad design for a modular one
@@exMuteKid wow thanks. I would certianly take you up on your offer. Although I would have to wait until I got a 3d printer before I could use it, however it would be great to have something ready to print when I do get one.
@@MechanicGoneRogue you got files to print let me know I’ll happily print parts for you. Just found your channel, and would love to help however I can.
@William Harper Wow thanks for offering, That's very generous of you. I don't have any files right now, but I will keep you mind when I do get some.
I don't know if this will help but you can solder copper wire to aluminum with regular solder if you solder to the aluminum while under oil (the stuff you put in car engines).
Interesting....I'll have to try that as it has a huge potential......soldering anything to aluminium is quite impossible normally.
It possible just need to take out oxide on the surface out first
Hi, I'd love to see you try and run power through this battery, as in try to charge it.
Great suggestion! Hopefully I can try that in the future.
@@MechanicGoneRogue Thanks I’ll make sure to turn my notifications on
Wow great good job...but. what about capacity ..and what about charge and discharche .. thank you
I'm glad you liked my video. I didn't keep this version around long enough to test it that thoroughly. I did however get into that more with a similar design in a later video. Check it out if you have time. You'll probably enjoy it. czcams.com/video/oeL2LZ_pza0/video.html
@@MechanicGoneRogue great ... thank you so much
I think the LED brightness is a factor of the voltage. What do you think?
I think in this situation the bigger problem would be low amp output. This light is normally powered by 3 AAA batteries so the regular working voltage is only 4.5V. This battery when compared to my first one doesn't improve its voltage nearly as much as it improves its amperage. Hope that answers your question. Cheers!
Great battery design! Do you know where oxydised aluminium ends up? In the electrolyte solution or on the surface on the aluminium sheet? I am wondering, if you had your aluminium sheets twice as thick, would you have twice the usable capacity? Also, if you are going to make more Al-air battery experiments with your current or future battery designs, I would like to see what happens when you let it discharge fully. How much capacity there is (at least approximately) and what it will look like inside once it's empty. Maybe also to see if you can swap out the aluminium sheet and use the battery again. Anyways, there aren't that many videos on CZcams about Al-air batteries, and your videos are really great. Big thanks!
@Head Master Hey there. Thanks a ton for all this feedback. In answer to your questions. I believe the oxidized aluminum ends up in different places depending on the electrolyte (although I could be wrong). If it is acidic I think that it goes in the electrolyte, but for saltwater solutions I think it builds up on the anode. Thicker aluminum sheets could in theory increase the battery capacity, although there are greater problems hindering their longevity. The main one I see as electrolyte evaporation (mine only last about a day). I am working on more battery designs for future videos. Definitely will keep your suggestions in mind. I really like the idea of a post battery tear down. Thanks again, I am glad you appreciated my videos. I'll see you in the next one. Cheers!
@@MechanicGoneRogue Yes, I think you are right regarding where the oxidized aluminum ends up. It makes sense to me! I am looking forward to seeing your future designs. What if you would put your battery in pure oxygen?..
@Head Master I would imagine pure oxygen would boost the amp output, but I don't know by how much. I like your thinking though. I've toyed with the idea of using compressed air or pure oxygen for the cathode, but have not gone further with it right now. Something to explore in future videos though for sure.
@@MechanicGoneRogue It is not only more or high pressure oxygen, but the anodic reaction occurring on the aluminium side also determines the overall speed of the total electrolytic reaction. So I believe, using high pressure oxygen would not make very much difference. However, if you could also do something on the anodic side to remove the reaction products whatever they are, then this might affect the total output and then you may see a significant increase in the reaction rate/ capacity or output. Thank you for nice videos. I really appreciate it.
use the dish soap in a food processor method to get your graphite powder further refined into Graphene. That will help in getting rid of the copper.
Hey good idea. I watched some videos on that years ago but never acted on it. I'll have to try it out sometime. Probably will have to rewatch those videos first lol. Cheers!
What happens when the electrolyte solution dries is it done then or do you need to disassemble and rewet it
Yes it needs to be rewetted, but I don't disassemble it. I just use a syringe to get some into each cell. Good question though, I've found that drying out is the primary cause for the battery failing, and yet you are the first person to ask about it. Cheers!
How big this battery should be to drive an electric like Tesla Model 3 or Model S?
Um probably would be bigger than the car. This battery has a ways to go before it will be able to power a car. Maybe one day it will be able to.
9:02 - 30 mA is not a third of an Amp :D
Anyway, very interesting project. Like it.
Yes. That was an error on my part. I've had a couple people mention that so thanks for bringing it up. Glad you enjoyed the video despite my mistake. Cheers!
👍
I hope you get 1000
Slowly but surely
Hi! do you have any research references for creating this battery? Thank you!
No direct references. Most of these changes were inspired by viewer comments to my first battery video.
What happens if we all attempt to charge an aluminum air battery? Like applying voltage on it
I actually made 2 videos about that. Its called "Will it Recharge" part 1 and 2. Check them out if you want more details, but the short version is yes they recharge, but it does bubble because of the water in the electrolyte.
Could one recharge one of those? Would it not be awesome?
It would be pretty awesome! I actually tried it in a couple later videos. You should check them out when you have a chance. Cheers!
What’s the capacity in mah ?
Do these things need air to operate?
If you blow more air through them, let's say a fan or you place it on the roof of a moving car, do you get more power?
And I have some crazy ideea in mind, they need oxigen, right?
What if I blow pure Oxygen into an electrolyte bath, but what's my other electrode?
One Terminal is the aluminum.
And my other battery terminal is?
In theory yes they do. I've thought about trying to increase the amount of oxygen present by pressurized the air around the cathode. Haven't gotten around to actually doing it yet though. A fan might be a cheaper way to test out that theory though.
I heard that the dull side of aluminum foil has a coating on it!
Not sure about that. From what I've seen, it is made using two sheets in a stack as it is progressively passed through rollers. The dullness comes from the two sheets being pressed together during the rolling process. CZcams has videos that you can look up; it is actually an interesting process. I don't thing it is coated at all, considering that it's primary use is for foodstuffs.
im curious about mah capacity ? also does it produce much heat? also what about h2o2 in your water salt?
Good questions. I don't know the mah capacity right now. No it doesn't produce any heat. h2o2 solution might work I've considered it for future videos, but have gotten about to testing it yet. Hope that helps. Cheers!
@@MechanicGoneRogue be carefull if you use consentrated h2o2 lol
@@fookinay haha yes indeed. Probably will start out with some over the counter stuff first if I do go that route.
Can we use direct electrolyte without tissue which will reduce the drying of electrolyte??
Good question. I haven't tried it, but something would need to be between the anode and the cathode to ensure they don't short out. Hope that answers your question. Cheers.
You: l building a new battery air
Me: ......mmmmmmmmm?
Sorry it wasnt 100V 😏
Buena onda Brow
Thanks :) Glad you enjoyed it!
Congratulations. I made a battery with all u mini um, coal and round magnet but it dischatges immedisyely the charger is removed
So these batteries are supposed to last forever, like that's the entire point right, so can you show how long they last?
Yes. I'm hoping to make a video in the future that addresses that. Cheers!
try to connect those strips in parallel for better amps...coz that increase the watt ..and if u gonna try this or do this again, try to make them in roll cylindrical shape..
Good ideas. Thanks for the feedback. I'll have to try them in future designs. Cheers!
Watts are watts, if you double amperage but half voltage you aren't getting any extra wattage.
@@craftxbox watts are watts man but here we have 5.7 v with 13 milli amp(0.013) its nothing ..the watt is 0.074 here but if we have 3v and 1A we could get 3W .
@@sivasanthoshr.m2222 If you change a cell configuration from 10s1p to 5s2p you get half the voltage and double the amphours.... You don't magically get extra power
@@craftxbox well i dont get magically extra power...but i do get "electrically" actual power
you should check the capacity of battery in milli ampare hour. or check the duration of led light.
Hi there. Thanks for the comment. I actually did that in later videos. Check them out if you're interested. Cheers!
"30 milliamps which is a third of an amp". You mean a third of 0.1 amps. Milliamp is one thousand of an amp.
Yah I definitely messed that up, and I didn't even notice it until some of you guys pointed it out. Thanks for that.
How long the battery last on continuous load?..
I'm not sure. I haven't tested it that much yet. The electrolyte dries up in a day so that limits any sort of continuous load testing.
How much weight is this?
We are making projects on this topic
Can't say that I've been asked that one before. Unfortunately I don't know. Sorry about that.
If you put six packs un parallel circuit , you gonna have same volt but the amps gonna be six times like 70's milliamps
i think you might have been thinking about something else when you said 30 milliamp is a third of an amp,
300 milliamps is a third.
Hahaha yes I was, and I missed it on the edit too. Good eye.
For 3.0 os plastic screen as separator
Why do you suggest a plastic screen? Wouldn't it block the electrolyte from getting to the cathode?
Can I use sodium hydroxide instead of potassium hydroxide?
I haven't tried it, but I've heard that yes that can be done.
@@MechanicGoneRogue Thank you very much .
Can it be recharged?
Yah if you replace the aluminum.
How does the battery not dry out? I mean, Aluminum reacting with water should produce hydrogen and aluminum oxide. So the electrolyte should run out, i think. Btw, thank you for the practical explanation.
Your right the battery does dry out. It takes about a day for that to happen though. I'm not sure if hydrogen is produced from this reaction, but mind you the battery isn't very big so if it did make any hydrogen I imagine it would be a negligible amount. I'm glad you enjoyed my video. Cheers!
Can you recharge the battery?
I'm not sure. Probably not just going off of what I read online.
@@MechanicGoneRogue Since I'm not the one who's life endangered, it might be a fun exsperiment. :-P
I like your suggestion! No promises, but I may just try it one day ;)
What happens if you try to recharge this battery? Can you make a video? Can you see if recharging creates hydrogen gas? Can you try to capture any recharge-gases and prove that it's hydrogen? Can you see if some process can suppress the production of hydrogen gas, like using UV light or recharging in a pressurized container?
There shouldn't be any ph differences between table salt and potassium chloride, which is used as an alternative salt for health purposes
You might be right about that. I had read up on it when I was making the electrolyte, but I might have got some bad info. Nonetheless I did get better results with potassium chloride so I didn't question it. Thanks for pointing that out.
@@MechanicGoneRogue no problems chief, but there's an empirical advantage to potassium chloride that you can always use
It sounds a lot cooler to the layman than "table salt"
@Guy That Hahaha yes that is definitely an advantage.
How to make a 1 amp battery source?
Depending on what kind of battery you wanted to make, probably the best option would be to make multiple cells and tie them all together in parallel or something like that.
@MechanicGoneRogue bases on aluminum air battery, also, can you show how to make a battery that can heat something small up enough to cook on? Even if it is a slow cook. Would you also show how to make a one amp 5v battery for charging a phone?
Great idea's! If I can manage to refine the design so that it's powerful enough to do that I'd love to.
@MechanicGoneRogue maybe, parallel, or I have seen a video doing that with aquarium activated charcoal. I also would like to see pocket warmers with paperclips as the heating elements. .5 volt leds and penny fuel cells work too. I have so many ideas.
What can go wrong safety wise?
In my opinion not that much. I mostly just avoided getting electrolyte on myself. The main reason for my disclaimer is that with a public video I don't want to assume liability for other peoples actions. If anybody wants to try something that I do in my videos they have to bear all the responsibility and risk.
@@MechanicGoneRogue Haha I figured as much, I'd do the same but the whole thing seemed relatively safe for the amount of stress you put on those warnings, I've seen ppl make TATP (a pretty sensitive high exp) with fewer warnings
Regardless nice build, it's definitely unique, I would personally like a bit more of the science in these videos, when you say "I did a lot of reading beforehand" I get curious
@Guy That Haha yah I do tend to the cautious side of disclaimers. My motto is better safe then sorry. Glad you liked the video! As for the reading, yes I have done a lot on metal air batteries. I don't always understand it, but I've read it lol. Glad to know where your head is at. Maybe I can try to explain a little more in future videos. Cheers!
@@MechanicGoneRogue cheers!
Magnesium (MG) is better than aluminum (higher voltage). I've played around with laying strips of MG on top of the aluminum with good results. MG strips are cheap to buy.
Mmh I never thought of using magnesium. Good suggestion. Thanks for sharing. I'll have to try it out. Cheers!
30 mA is not 1/3 A or .33 A. 30 mA is .03 A.
Right you are. Thanks for pointing that out. I totally missed that.
You gave us all the blue ones not showing a side by side of the old light in the previous video with the new one
Good point, a side by side comparison would be helpful. I will have to do that for future videos. Thanks for mentioning it.
How would using EAN Nitrox (32% O2) instead of air affect the performance of the battery?
That's a really good question. I have also thought of increasing the battery performance by increasing the O2. I was thinking of using pure oxygen like what's available for oxy-acetylene torches. I haven't been able to experiment with this yet but I would suspect there to be an improvement. Hopefully it is something I can look into in the future. Cheers!
30 milliamps is 3% of an amp. You should try charging your battery, two cells in series Max's 4.2 volts.
Why don't you respond the queries about "The time that we extract the current from tha battery"
You can't recharge it so do You just have to change the aluminium out
Yup you got it!
Thanks for making this video. Pretty sure 30mA is not 1/3 of an amp. 300mA is.
Well thank you for watching. Yes your right 30 mA is not 1/3 of an Amp. That one slipped through my editing net 😅.
@@MechanicGoneRogue it’s all good. Got my hopes up for a second lol. Will be building some similar to yours soon!
@@dana4261 good luck with your project my friend :)
Please, what would you like? Thank you
I'm not really sure if I'm understanding the question properly. What would I like for what?
Please what is the liquid mixed with water and thanks
Oh ok gotcha. The electrolyte is vinegar mixed with powdered citric acid and potassium chloride. Those items are included in the list I have in the description. Cheers!
☝️🤟👽⚡
This is great for experimental purposes, but how would it compare with a standard AAA battery ?! It seams a standard AAA battery (much smaller in size than yours) has 50mA 1.5V, which roughly means 75mW, and yours is giving 5v * 12mA = 50mW. It might be that yours has greater capacity, as more than 1800-2600mAh like in the standard AAA battery. And I think that the capacity is after all, the characteristic that would make your solution fiable enough to make these on personal base use instead of standard cheap bought batteries.
Can you make an estimation of how much mAh would your battery last ?!
Regardless of the results, I say: Congrats, it's an excellent tutorial explaining the basics of batteries, these are not tabbu anymore, because of you !
@ Cosmin Popescu. In order to give any kind of estimation I would need to assume that the mA remains constant during the discharge duration. If that is the case I would estimate the mAh to be around 2000. As the long as the electrolyte doesn't evaporate (or more is applied). I've had some of my prototypes last for about a week before the aluminum is all oxidized. I really appreciate your feedback. I'm glad you enjoyed my videos :) cheers!
@@MechanicGoneRogue This would be great news, thanks. So my idea on searching the web is finding a good recipe that accomplishes four conditions: (1) is 100% homemade possible, (2) is much cheaper that any commercial type of battery, (3) can be recharged easily by just filling an electrolyte or replacing a some sort of cathode/anode "cartridge", (4) has a good last-time-power balance, meaning I would have to "replace the cartridge" once a month or so.
Do you think this would be possible ?!
I saw on the internet that a big university discovered some years ago a form of simple tech that would use Magnezium FOIL for a battery that can achieve great power-time balance (30 g of magn foil would make an ios phone last one month, and they say it would cost only 9 cents), but I'm not sure where I would acquire magnezium foil, I mean cheap (I found something in Romania, my country, on the inernet but it was like 1000x (no kidding) more expensive that these guys said).
This is the video i found most promising, what do you think ?!:
czcams.com/video/3EKmetdjE-c/video.html
I don't think you're correct about table salt being slightly alkaline. Pure Sodium Chloride should be neutral
I just wanna preface that comment with the fact I think project this is amazing. I can't wait to try some of your designs out for myself
Your absolutely right about the table salt. I have since learned that table salt has a neutral ph. Really glad you enjoyed my video. Thanks for the comment and happy building!
try baking soda water as the electrolyte
mildly acidic
casing from carbon, plates in shared parallel separators in electrolyte
remove air electrode from the stacks, alternate or roll aluminium with electrolyte paper, assume that small bridge is enough to connect to the outside air electrode casing
more current less voltage, multiple large stacks to get higher voltage, like the 1.5v thick battery slab
thats carbonic acid btw in water
potasium hydroxide 👀
Yes, Potassium Hydroxide!!! 😮
its supposed to be. a jelly roll cylinder shape
Сколько ампер на короткое замыкание
I got a 30 mA reading by short circuiting the battery. Hope that answers your question. Cheers
👍🍔🍓🍓🍺
You need to get rid of that mercury thermostat
Well I get that mercury is toxic, but its safely contained in the thermostat is it not? Why do I need to get rid of it?
using a hydroxide requires an aluminum alloy.
OK, then build a 20 amp x 72 volt e bike battery.
That would be a lot of fun. Maybe one day I can make it happen!
Start manufacturing battery for sale. Battery for bicycle is good that not important but you can use garage to start manufacturing business start making money and reinvesting money.
You can grow up.
Love the enthusiasm mate! Wouldn't it be great to make a business out of this!
@@MechanicGoneRogue if make paper after paper etc PhD then doctoral degree ...
Many good ideas everyway and get idea and bring to market make different
College does not teach that.
Check history of Ford , HP, and many others
They did not came from people that thinking of Phd paper etc academia etc
Congratulations. I made a battery with all u mini um, coal and round magnet but it dischatges immedisyely the charger is removed