Question: I tried no music for this video as there were complaints about it in previous videos. What do you think? Should I keep the music, or is musicless better?

0.6 F out of that is amazing. Absolutely amazing.

I actually liked your video better compared to what Robert Murray-Smith usually does because instead of "just experiment and find it out yourself!" you actually explained exactly what you did and exactly what you've got, appreciate it. I was also really interested in that setup of multiple capacitors that you have where you varied a single parameter to figure what works the best and would love to see more on what you tried. Both things that worked and things that didnt are really interesting.

This is the best video I've ever seen about super caps. I searched for week and I got no answer until I found this video. Thank you so much 👍🏻👍🏻

No music is the best. Great vid, keep up the good work.

Great video as always, can't wait for the next one!

There was a relatively recent paper that I saw about creating proper single layer graphene on copper foil. It might be interesting to try and use their method to make electrodes for the capacitor, especially since their description had it in a continuous spool that would be conducive to wrapping a cylindrical capacitor.

I'll have to get around to tinkering with this, I've been meaning to for a while. Can't wait for next Monday, this is going to be a great series!

wonderfully clear up everything!

0.6f! That's insane for something that size!

Super cool useful vid! And yes, I didn’t hear it with music, but this is definitely better.

I love your videos , so informative. Good job 🖒

Can't explain how much I like this stuff

I made a capacitance meter with an Arduino. You could program it to charge/discharge and measure the capacitance each time to see if it breaks down, and how many cycles it would last. Great video! Subscribed!

You put much work there. Nice!

"The quest to make them reach their full potential" (at 4:03), pun intended? Great video BTW, thank you.

Truly inspiring results.

Educational, thank you.

gracias estuvo buenísimo

thunkyou very mutch good explicqtion , and what about rearegement molecule dielectric condensator

You got the part at 2:50 backwards, the empty battery has the lithium in the transition metal oxide layer, while the charged battery has the lithium in the graphite layer.

nice video thank you very much!!

Dude! Activated carbon killed it!

Hi, very informative Video!👍👍 I have a few Questions, maybe someone can answer. 1. Wont the Sulfuric acid (or other strong acids) destroy the separator paper? 2. What was your last change in the Video to achieve 0.6 Farads? 3. How to find out the Peak Voltage? Set it to maybe 3V and does the capacitor settles down its Voltage by itself? Thank you for your answer 👍

This was an amazing video and lots of information. Where would you go if you wanted to manufacture your own super capacitor using your own carbon and binding formula?

Excellent video! Lots of good info here and presented very well. Looking forward to the other parts. I have made and tested a few super caps myself. The resulting capacitances were very good but they had a short lifespan. After maybe 6 to 8 charge discharge cycles over a period of 15 to 20 minutes they would stop working. I tried several different binders, one being a commercial polymer based one used in making lithium ion batteries. They all had short life spans. After watching all of Robert Murray Smith's videos I noticed that he calenders his electrodes. After applying the carbon based paint he dries the coated electrode and then compresses it between two rollers. I suppose this compression helps the coating adhere to the foil and maybe helps with cell longevity. It may also improve cap performance. I have not had time yet to try this calendering step on my cells yet. Have you checked the longevity of your caps or tried calendering them?

What are the specific steps you took to charge the supercapacitor? Also is there a way to charge the supercapacitor without the variable voltage source?

Robert's channel is awesome (aside from the fact that he doesn't use a lapel Mic). Everyone should definately check it out.

I was thinking about 3d printing a housing but can the plastic be used as separator and fill it with graphite

@The Thought Emporium, where did you get the formula for capacitance at 13:20 from? Did you derive it, or did you get it from a cite-able trustworthy source?

Thanks for the great video as always! I'll try it out eventually but right now I don't have the materials.

Will home made caps work with power line current as in a home or 200A?

Dude you deserve some funding man.

Very nice.

Hi sir, I follow your video and the part with the binder I understand till the little white drop of something that you put also in the mixture, I really cannot understand what you are saying there, please will you tell me what this little white drop is called? Thank you very much.

Weird question instead of painting your electrode could you use an aerosolizer to apply your paint

1:28 So after fully discharging a lead acid battery I can both 1. reverse the polarity by simply charging it the other way around and 2. fill up the battery with simple destilled water instead of sulfuric acid?

Very good video. Congratulations. I saw a 2.7 Volt supercapacitor and 500 unwind Farazi that consisted of two layers of activated carbon and two layers of paper. It was dry and had no electrolyte between the layers. It was built like an ordinary capacitor: paper and aluminum, only the supercapacitor had two overlapping layers. I think that decomposing such a capacitor and measuring it, analyzing it and explaining it would be an interesting thing for those interested in this subject. That layer of activated carbon should be analyzed to know what it is made of. Thanks.

What electrolyte was used in that 0.6 farad capacitor? 😅🤔

Can I use thin hdpe sheet as dielectric between both electrode ?

i swear i've seen it in some soviet "popular mechanic", the moment you've started to talk about binders, i thought "i bet he'd use PVA". This is the only explanation as to why i was so certain, there were no other sources for me to get this information.

Electrolytes, they're what super-capacitors crave.

Can you please tell me where can I find the probe holder?

Twist that graphite 1.1 degrees and you really got something. It's magic lol

agreed I am a religious follower of Robert and have been for years you now have a new sub. tks for the great vid.

11:00 nice 500g scale weight, i do the same thing :P

Please please please revisit this project! 🙂

Can you go into more detail on comparison between the different graphite binders? Ive been experimenting with conductive paint recipes for electroplating. Best results so far have been 6:1 graphite/ PPG Deltron (catalyzed urethane clear) reduced 50% - 6 coats LIGHT coats with a .3mm nozzle buffed with suede between coats (the buffing turns out to be key). Best ive gotten is 100ohm/cm, but I'd like to achieve better. PVA, shelac, nail polish, acrylic, and the other youtube suggestions resulted in 250+ohm

Can you use carbon fiber instead of graphite foil?

What electrolyte did you use?

Its been a long time since you made this video , what is the development right now ?

Please revisit this experiment!!! Love your channel!

Would copper be a good plate for a capacitor?

I'm happy that you're experimenting and sharing.. that being said what you built isn't a capacitor, it's a rechargeable fuel cell. you are storing hydrogen and oxygen in your graphite sponge electrodes that's why you get the voltage for h+2o... h3po4 is an electrolyte that's used in fuel cells along with graphite catalysts. activated carbon is an adsorbent.. but your mistake doesn't change what you have built, maybe now you will better focus your effort on enlarging capacity knowing the mechanism at work perhaps improving on the adsorption of your molecular sieve. maybe research specific sieves for hydrogen and oxygen to mix in each electrode. you can prove me right cause capacitors need proximity across a dielectric so thicker graphite layers wouldn't matter but more volume to store gas in a fuel cell enlarges capacity. besides you don't have an insulating dielectric, you only have an electrolyte with water try to use one without water to split into h and o like in lithium batteries without a salt either to split into say cu and cl the little capacitance maybe nf will discharge cause capacitors can't have internal resistance. you don't have farads you have mah. find adsorbents for h and o make the h side twice the volume of stored gas to get equal pressure and seal your setup higher pressure will reach the molecular sieves working range and increase your mah into the ah range. you simply ascribed your correct conception of other concepts as non negated factors.

I was thinking, instead of graphene, what do you think about silver nanoparticles? Silver conducts probably best of all elements, and it is nano so it will have good surface area, also silver is chemically active so you could use an electrolyte that cause chemical reaction? I checked and silver nanoparticles are about $25 a gram online.

Can you please make a tutorial on how did you make the graphite like in the last part of the video. teach me master

You were probably getting much higher than 0.6f. With a capacitor, you should be discharging to basically zero. Often super capacitors have lot's of remaining power under 1 volt! Plus your load is likely causing tons of voltage sage with those tiny things, so you likely were no where near fully discharged!

Lithium-ion cells work similarly to that of both Lead-acid batteries and supercapacitors in term of charging and discharging cycles. What Supercapacitors have going for them is that there are a few brands and models that absolutely do not use flammable electrolytes, likewise for solid-state Lithium-ion cells - supercapacitors are useful for certain projects that needs a lot of juice, PRONTO, or basically just to keep time on the real-time clock chips. They both need balancer, obviously, if you care about the lifespans and safety. And yes, low internal resistance Lithium-ion cells also exist, yet sometimes they're hard to find. I use either or both in my DIY electronics projects.

Part 2?

Can you make a video on aluminum air battery...

Any progress on this? I'm planning to try some stainless mouse- / roofing mesh for the collectors.

No music. So, the final capacitor you made was impressive. How many would you have to stack up for this to become dangerous?

I need a little help finding a good separator for my electrodes. Do you have an suggestions?

What are these bottles and where do you got them from?

Is there an alternative to phosphoric acid What is the benefit of phosphoric acid

Have you ever heard of the Tin-Zinc battery? It's a type of rechargeable battery that can be crudely made at home.

Do you think its possible to use carbon dioxide gas as an electrolite?

You deserve more subs man keep it up

How do you know that it is a supercapacitor and not a fuel cell? I think in the analysis it should be relevant the charging time of the device in order to understand it

How do I know what voltage to charge it with?

No music, please. Could someone please post that equation? I'm using a tablet and I'm old and can't see. Lol! Thanks!

finally... you make this video....

Why arent you useing monatomic gold?

What about mechanical kinetic flywheel batteries?

In your Ragone plot, how did EDLC's end up higher then Batteries in terms of energy density?! This is wrong! Check, e.g., Simon, P. and Gogotsi, Y.: Materials for electrochemical capacitors. Nat. Mater. 7, 845 (2008). In a simplified explanation: energy in chemical reactions (electron transfers) is generally higher then electrostatic interaction resulting in the electric double layer as the principle behind EDLC's. Nonetheless EDLC have a have a high potential especially if the electrochemical stability of the electrolyte can be increased. Anyway this is a complex topic for a short YT comment ;) feel free to ask qs. BTW nice assembly!

3:09 ?

Use lcr meter!

Is white vinegar a good electrolyte?

What about LTO cells? I know this video was made quite a long time ago. But I still want to know what you think.

Question has anyone tried adding a magnetite strip between two paper separator. Could using a magnetite strip in place of electrolyte attract electrons. If yes would you still be dependant on surface area or could then look at density instead of surface area.?

I like how he doesn't say his way is the best and only way

0.6F on something so small is absolutely nuts.

7:56 What about Diamond?

0:30 citation needed?

Why would you paint the graphfoil with graphite powder? Wouldnt it be sufficient enough to just use the graphoil itself? Whats the use?

I’d definitely spend more time and energy on something like this if I had the money and social skills

Could I use the separator found in lithium ion cells.

What if just paper sparator with no electrolite.. What about the voltage?

@The Thought Emporium I am having a problem .. I have tried to make battery 3 times and two with activated carbon and one with manganese dioxide .. Used potassium hydroxide as well as sodium sulphate electrolytes and charged on 2.6v (at 3 volt electrolyte start burning) but all the time after charging voltage suddenly start dropping and battery don't have power to test on EBDtester ... Can anyone rectify what I am missing 😔

Just as a note, on Wikipedia it states that 4 Leyden Jars in parallel was the basis for the worlds first battery (capacitors were originally called Leyden Jars). Supercapacitors could be improvised by connecting lots of capacitors in parallel.

thought emporium: "here's some awesome science that everybody can make!" Me, an intellectual: "who on earth is thumping on the mic?? Oh, that's him, he's the one... Doing... It."

where your graphene oxide synthesis that submerged in tea? did yo u remove it?

Cool.. Useful words.. Too many people on here talk and talk... Are you saying super capacitors over graphene cells

soooo electrons dont go through the separator they go through the wires when connected in a loop other than that good vid

i just use the capacitance meter on my multi-meter

Could buckminster fullerenes be used as an electrode material?

Can someone clear up the equation at 12:02?

if i guess what your secret sauce electrolyte solution is correctly, will you tell me if i'm right?

Man, I miss your old series. Not that I'm not enjoying your biohacking, but it's a narrow focus.

Capacitors store electrical charge in form of an electric field. A battery stores charge chemically.