@lexichronicle2 as i've said before in these comments countless times. The rules apply differently to galvanic cells. What you're describing is an electrolytic cell.
@Cheejyg air batteries get some of their reactants from the air, as opposed to regular batteries that are completely self contained. An air battery wouldn't work in outer space for example.
@NurdRage I did some reading on Davy a while back. You are completely correct. It can be argued that the "confusion," assuming there were any, happened on BOTH sides of the Atlantic. And that it matters none at all on either side as long as we agree that it's the same metal. 'Scuse me while I go catch a lift down to my lorry.
@NurdRage I just wanted to say that your videos have been fueling my love for chemistry for quite some time, while also keeping me informed and educated of interesting things like this, thanks a ton!
I made three of these cells, wired them in series, and was able to power a small sony fm radio walkman that takes one AA battery. In place of the steel wool, I used aquarium filter charcoal, as it has a better surface area for oxygen to get in, so the cells provide more current.
@fart1fart1 yeah, anode/cathode, negative/positive, is really weird and applies differently to different cells and situations. took me awhile to get it right too.
to all the nerds out there trying to bring Dr. L down forget it!!!.....this person is an educated individual who does nothing but promote the education of others who have not had the opportunity to studies advance sciences. If you don't like ..DON'T COMMENT//////thank you.
@aeroscope Professionally manufactured ones do. This is a home-made job so its performance is lacking. A great deal of extra work and chemicals are needed to make it high-capacity
@lexacor Aluminum is the correct way. That is how it was spelt by the discoverer. It was later renamed by the English to make it sound more like other elements.
I suspect that your current is being limited by the availability of oxygen to the iron. I would put in in a flat dish and spread it out. Also a touch of base in the aluminum portion will help take off the oxide better than the chloride alone. Otherwise good design.
I'm actually amazed that you can get some current and voltage like that - damn, there's so much that can be done with regular household appliances - thank you for the informative videos :)
the actual voltage and amperage readings on the battery probably won't even be that high due to very little or no load upon it. Give it a small load (varying sizes of resistors) and test the readings again.
Well done, but the best and cheapest solution is graphite with alufoil as the electrodes and water and K2CO3 as the electrolyte. This gives about 1.3 to 1.5 Volts and lasts long and graphite can be selfmade (lookup the overunity forum) or from pencils. And Alufoil you can get from every supermarket. Many thanks for your nice videos ! Regards, Stefan.
@SlackerSlayer An electrical battery is one or more electrochemical cells that convert stored chemical energy into electrical energy. A rechargeable battery or storage battery is a group of one or more electrochemical cells. They are known as secondary cells because their electrochemical reactions are electrically reversible.
Nice demo. You might have pointed out that metal oceangoing craft suffer from corrosion (oxidation) resulting from these same electrochemical effects by reason of their metals coming in contact with salt water.
@Cooldude32281 The terms were used correctly. It may seem confusing, but think of it this way: when you're dealing with the electrochemical SOURCES of the battery's energy, as opposed to that which it powers, the terms are reversed.
@Nurdrage Alright. I'll try it later or tomorrow. The steel wool I have is kinda odd, it doesn't burn like usual iron/steel wool does (like, it gets ember red if you burn it, and all it does is make some smoke with 9V batteries), and even trying to get rid off the Cr with NaOH doesn't really seem to work. Ah well, I'll see how it goes and let you know!
this doesn't have to do with cemicals but can you show us how to make a cumputer controlled wind chamber/tube please?with smoke/fog to see the air patterns if you put an object inside of the tube that obscures the air path
@NurdRage I'm a little confused. Isn't the positive electrode the anode and negative kathode? I'm pretty sure it is for diodes and capacitors so why would it not be for this battery?
@MKplayer7 That's redox. Getting along with the fact that the oxidant gets reduced and the reducer gets oxidized is harder than the actual equations however. :P
@NurdRage It comes from a misprint on a packing crate. It is Aluminium due to the agreement between UK and USA scientific communities to adjust Sulphur to Sulfur, as per the American spelling, in order to get Americans to pronounce Aluminium correctly.
hey nice, something i can actually do with stuff i already have in my house you probably already know but you can also use fruit and or starches (potato) you could have multiple containers with the same thing and then hook them up in series to add the voltage and maybe run some little electronic device
I made one at home and it made 0.6 volt. then I made another one using a tic tac bottle as a case. and stuffed 2 cells into it and it was giving 1.2 volts
what can it power and for how long? (hope this wasn't asked already) like a small light or a small fan maybe? Volts: 0.23 Current: >20milliamps If you made a bigger one, would you get more power, like a 5 gallon bucket, a few containers of salt, some rolls of foil and a few bags of steel wool?
@Hellsslave666 wikipedia's anode page actually explains it well. Anode/Cathode labeling depends on whether the device in question is producing or consuming power.
@NurdRage I have steel wool, but it's stainless steel. As I understand, stainless steel is usually coated with chromium nowadays, is there a way to get rid of the Cr but not get rid of the Fe?
You cut your self off there! LOL but I resubscribed again anyway! you do know you can go 15 min at least. so if the video is under 5 mins don't worry about trimming it up! Great video!
just an idea.... what if instead of water you use hydrogen peroxide? i think the reaction should be faster and independent of ambient air and i think it should work as well with zinc (because of some laws i can not put my hands on some H2O2 of higher concentration than 5 % commercially ) please give a reply
You could use sodium carbonate (washing soda) to get much more voltage and current but the battery would only last a day or so since aluminum slowly dissolves in sodium carbonate. Sodium hydroxide will also work but with that you have to be very careful not to use too much of it or you get a violent (and dangerous) reaction.
Since normal foil alredy haves aluminium oxide, i dont think the reaction works as described. Most likely it's forming aluminium hydroxide. Hydroxide is quite a stronger oxidizer than simple oxygen. Instead of: 2Al + 6OH2 --> 3H20 + Al2O3 would be: Al2O3 + 6OH --> 2Al(OH)3
Thats kind of neat. Your videos are always very interesting and I always look forward to them :P. OHH, just thought of something. I remember in high school (or middle school), we burned a pile of green powder which caused a really cool firework effect, but it built up a lot of ash at the source and eventually was shooting up through a mound of ash. It looked like a volcano almost. I can't quite recall what it was we used.... Hmmm I was going to recommend it, o well. I'll think on it lol.
anode is electron giver, and cathode is electron accepter? so in bateris anode is negative, and cathode is positive, and in electrolysis it is reverse?
@edv177 Probably there's enough moisture lingering in the glue to maintain some ion mobility. But water isn't an absolute requirement for an electrochemical reaction to occur. For the very coolest perpetual battery ever made, google the Oxford Electric Bell. Might help if you also read Wikipedia's 'History of the Battery'.
Always wanted to learn chemistry, and how electronics work. Never learned anything about it can you point me to some material for beginners that isn't so boring it would cause me to give up?
@Computeroctprocessor yeah, youtube cut of my video, the actual vid has the whole sentence in it. Weird.
@fernandesilyt No, i did not, youtube cut off the last few seconds of the video. you can check the captions and see the line is there.
You can do a LOT with 17 milliamps! Can't wait for the next video!
Weird, for some reason youtube cut off the last few seconds of the video
@TheDrakenZ youtube cut of my video, the actual vid has the whole sentence in it.
@barbarossaaaa this is a galvanic cell. the salt bridge IS the salt water. In a text-book cell the bridge allows ions to pass.
@lexichronicle2 as i've said before in these comments countless times. The rules apply differently to galvanic cells. What you're describing is an electrolytic cell.
@Cheejyg air batteries get some of their reactants from the air, as opposed to regular batteries that are completely self contained. An air battery wouldn't work in outer space for example.
@dethbot12 Applying a current to the battery does not restore the products back into the original reactants. therefore it's a primary battery.
@NurdRage I did some reading on Davy a while back. You are completely correct. It can be argued that the "confusion," assuming there were any, happened on BOTH sides of the Atlantic. And that it matters none at all on either side as long as we agree that it's the same metal. 'Scuse me while I go catch a lift down to my lorry.
@NurdRage I just wanted to say that your videos have been fueling my love for chemistry for quite some time, while also keeping me informed and educated of interesting things like this, thanks a ton!
@THETOMANATOR2 the agreement also extends to recognizing aluminum as a valid spelling as well. just check the IUPAC website.
I made three of these cells, wired them in series, and was able to power a small sony fm radio walkman that takes one AA battery. In place of the steel wool, I used aquarium filter charcoal, as it has a better surface area for oxygen to get in, so the cells provide more current.
I'll hafta remember this if im ever stranded on an island!
@fart1fart1 yeah, anode/cathode, negative/positive, is really weird and applies differently to different cells and situations. took me awhile to get it right too.
Yeah he is right you just said cathode or +ve electrode
Anode or -ve electrode
to all the nerds out there trying to bring Dr. L down forget it!!!.....this person is an educated individual who does nothing but promote the education of others who have not had the opportunity to studies advance sciences. If you don't like ..DON'T COMMENT//////thank you.
@Kendrana I think it would still work, chromium also catalyzes the reaction, just not as well as iron. Go for it :)
@aeroscope Professionally manufactured ones do. This is a home-made job so its performance is lacking. A great deal of extra work and chemicals are needed to make it high-capacity
@lexacor Other countries spell it that way, mine does not, we spell it as aluminum.
new do try this at home . . . new nurdrage . . . A VERY GOOD AND SCIENTIFIC DAY!
@lexacor Aluminum is the correct way. That is how it was spelt by the discoverer. It was later renamed by the English to make it sound more like other elements.
@steaknkibble you got a clipped or cut copy, the actual one has 521 pages.
would a weak acid be a better catalyst for it?
I suspect that your current is being limited by the availability of oxygen to the iron. I would put in in a flat dish and spread it out. Also a touch of base in the aluminum portion will help take off the oxide better than the chloride alone. Otherwise good design.
Awesome. I need to make this. Like right now. I would if I had steel wool.
I'm actually amazed that you can get some current and voltage like that - damn, there's so much that can be done with regular household appliances - thank you for the informative videos :)
@Hellsslave666 things are different for batteries, i know its confusing but rules apply differently.
the actual voltage and amperage readings on the battery probably won't even be that high due to very little or no load upon it. Give it a small load (varying sizes of resistors) and test the readings again.
@stunna47pyro That applies to electrolytic cells, not galvanic cells like this one.
Well done,
but the best and cheapest solution is graphite with alufoil as the electrodes and
water and K2CO3 as the electrolyte.
This gives about 1.3 to 1.5 Volts and lasts long and graphite can be selfmade
(lookup the overunity forum)
or from pencils. And Alufoil you can get from every supermarket.
Many thanks for your nice videos !
Regards, Stefan.
@SlackerSlayer An electrical battery is one or more electrochemical cells that convert stored chemical energy into electrical energy.
A rechargeable battery or storage battery is a group of one or more electrochemical cells. They are known as secondary cells because their electrochemical reactions are electrically reversible.
@Chaoschemiker awesome, good we cleared that up. :)
@djtron1x iron catalyzes decomposition of peroxide, the resulting bubbling peroxide would be dangerous to handle.
@woshigepro but water also is conductive,I think salt can increase the conductivity of the water.
Nice demo. You might have pointed out that metal oceangoing craft suffer from corrosion (oxidation) resulting from these same electrochemical effects by reason of their metals coming in contact with salt water.
Good stuff man as always
@Cooldude32281 The terms were used correctly. It may seem confusing, but think of it this way: when you're dealing with the electrochemical SOURCES of the battery's energy, as opposed to that which it powers, the terms are reversed.
@Nurdrage Alright. I'll try it later or tomorrow. The steel wool I have is kinda odd, it doesn't burn like usual iron/steel wool does (like, it gets ember red if you burn it, and all it does is make some smoke with 9V batteries), and even trying to get rid off the Cr with NaOH doesn't really seem to work. Ah well, I'll see how it goes and let you know!
this doesn't have to do with cemicals but can you show us how to make a cumputer controlled wind chamber/tube please?with smoke/fog to see the air patterns if you put an object inside of the tube that obscures the air path
@NurdRage I'm a little confused. Isn't the positive electrode the anode and negative kathode?
I'm pretty sure it is for diodes and capacitors so why would it not be for this battery?
Haha, a cell in a beaker! Cool video!
@nige111 please point out where i get the atomic number wrong, or say anything about its appearance.
Thanks alot for this video, I learn from you some thing which I was looking for long time.
Got to try this!
Can other household, or generally easily accessible materiels be used to replace the cathode, anode, and/or the middle substance?
Awesome videos but just curiously how do u know how to make all of these stuff or are they related to ur job?
@interpird350 that applies to electrolytic cells, not batteries.
whats the best home made and lab made bottle rockets (like coke and mentos type stuff) .
The theoretical energy density of an Al O2 battery is the highest of any known technology.
@MKplayer7 That's redox. Getting along with the fact that the oxidant gets reduced and the reducer gets oxidized is harder than the actual equations however. :P
so if you were directly bubble oxygen into the solution would it increase the productivity?
yay i've just made my own battery. keep up the good work!
Wait isn't the anode the positive electrode and the cathode the negative or is it different in some cases?
@canadafreakazoid whats wrong with it?
@NurdRage
It comes from a misprint on a packing crate.
It is Aluminium due to the agreement between UK and USA scientific communities to adjust Sulphur to Sulfur, as per the American spelling, in order to get Americans to pronounce Aluminium correctly.
pretty amazing! Please more vids with house hold chemicals!
hey nice, something i can actually do with stuff i already have in my house
you probably already know but you can also use fruit and or starches (potato)
you could have multiple containers with the same thing and then hook them up in series to add the voltage and maybe run some little electronic device
whats the best home made and lab made bottle rockets (like coke and mentos type) .
I've seen John Bedini using Alum to make an electrolyte solution for his batteries. He gets the Alum at the grocery store.
Absolutely love your work. Watched all of your video's! Always excited to see new material!
@steaknkibble perhaps in your country, not in mine.
I made one at home and it made 0.6 volt. then I made another one using a tic tac bottle as a case. and stuffed 2 cells into it and it was giving 1.2 volts
try doing this with potassium hydroxide (not sodium hydroxide) instead of salt water.
what can it power and for how long? (hope this wasn't asked already) like a small light or a small fan maybe?
Volts: 0.23
Current: >20milliamps
If you made a bigger one, would you get more power, like a 5 gallon bucket, a few containers of salt, some rolls of foil and a few bags of steel wool?
@LifeInATent well in that case you're in luck, type in "levitate pencil lead" to find my video where we do just that, completely real and scientific.
@Hellsslave666 wikipedia's anode page actually explains it well. Anode/Cathode labeling depends on whether the device in question is producing or consuming power.
I only subbed because i wanted to see the cool gadgets ya made
@NurdRage is it because the cathode supplies/loses it's electrons therefore making it positively charged?
What could I power with this. Could i power a gameboy if i wired it correctly or does this not give off enough energy?
Just curious were did you go to collage at.
@Turzath Good idea!
@NurdRage I have steel wool, but it's stainless steel. As I understand, stainless steel is usually coated with chromium nowadays, is there a way to get rid of the Cr but not get rid of the Fe?
If you do take request, can you show us how to grow Citric Acid crystals ?
You cut your self off there! LOL but I resubscribed again anyway! you do know you can go 15 min at least. so if the video is under 5 mins don't worry about trimming it up!
Great video!
just an idea.... what if instead of water you use hydrogen peroxide? i think the reaction should be faster and independent of ambient air and i think it should work as well with zinc (because of some laws i can not put my hands on some H2O2 of higher concentration than 5 % commercially ) please give a reply
Thanks for doing this. There's a lot of power in aluminium - spread the word.
Jack
It sounds like lieutenant Warf is talking in this video:)
hey , can this battery be recharge back or reverse the chemical reaction to turn oxidise aluminium back to just aluminium? Thanks
You could use sodium carbonate (washing soda) to get much more voltage and current but the battery would only last a day or so since aluminum slowly dissolves in sodium carbonate. Sodium hydroxide will also work but with that you have to be very careful not to use too much of it or you get a violent (and dangerous) reaction.
Yesss a new nurdrage vid! : D
@adriiPortillo I don't think your reaction works because you made 3 oxygen atoms vanish. Not even I can destroy matter.
@nurdrage so this is a corrosion cell? Is that how normal, non-rechargable batteries work?
Since normal foil alredy haves aluminium oxide, i dont think the reaction works as described. Most likely it's forming aluminium hydroxide. Hydroxide is quite a stronger oxidizer than simple oxygen.
Instead of:
2Al + 6OH2 --> 3H20 + Al2O3
would be:
Al2O3 + 6OH --> 2Al(OH)3
Great video :)
@jih128
it lets the current pass through the water
Awesome I love these videos
@NurdRage Why dont you show us how to use a micro hadron collider to create positrons or any other anti-matter?
I was waiting so long for you to start making videos again!
Thats kind of neat. Your videos are always very interesting and I always look forward to them :P.
OHH, just thought of something. I remember in high school (or middle school), we burned a pile of green powder which caused a really cool firework effect, but it built up a lot of ash at the source and eventually was shooting up through a mound of ash. It looked like a volcano almost. I can't quite recall what it was we used.... Hmmm I was going to recommend it, o well. I'll think on it lol.
You make excellent videos. Thanx and keep up the good work!!!
for the cathode I used a wire mesh with charcoal glued to
@steaknkibble So where did 1812 come from? Anyway IUPAC also recognizes aluminum as a valid spelling as well.
@NurdRage Hello I hav a question that bothers me. Is this type of battery rechargable?
Awesome as usual!!!
YEAH!!! i have been waiting for your zinc air battery video ever since the gravety battery video! cant wait. :3
anode is electron giver, and cathode is electron accepter? so in bateris anode is negative, and cathode is positive, and in electrolysis it is reverse?
How long does a battery like this last before the reaction stops producing electricity?
Nice video as always!
I've seen aluminum-air cells made using activated carbon as the "air" electrode and they produce a good amount of current.
@edv177 Probably there's enough moisture lingering in the glue to maintain some ion mobility. But water isn't an absolute requirement for an electrochemical reaction to occur. For the very coolest perpetual battery ever made, google the Oxford Electric Bell. Might help if you also read Wikipedia's 'History of the Battery'.
Always wanted to learn chemistry, and how electronics work. Never learned anything about it can you point me to some material for beginners that isn't so boring it would cause me to give up?