How to Make a Professional Supercapacitor at Home. (Each Detail, Step by Step) 200 F

[@AdamosDad]

I made capacitors as a child, I'm 74 so back when I was experimenting it was hard to find them, so you made what you need.

[@anonimoqualquer5503]

That sounds cool, how you made it?

[@AdamosDad]

@@anonimoqualquer5503 2 ways, by making a leyden jar and by rolling up tinfoil sheets in wax paper. I enjoy watching your type of videos, keep up the good work.

[@WTF_BBQ]

Thank you for this.... I watched many DIY battery/ supercapacitor videos, but it annoys me that they never tell us the small details. When I try to replicate them, it always fails. The deionized water and the sonication were very helpful tips.

[@joyofelectronics9782]

You are very welcome my friend. My intention is help you in any way l can. You will not fail when you try this 👍

[@alexgrandino8777]

Before caping the sup cap add some extra electrolyte and put it in the vacuum chamber for few minutes. Under low vac so it will not foam over and slowly lower The vac pressure until the foaming stops, always top up the electrolyte. Sup cap can be used sooner, no need to wait 1 day after the vac treatment.

[@alexgrandino8777]

Before caping the sup cap add some extra electrolyte and put it in the vacuum chamber for few minutes. Under low vac so it will not foam over and slowly lower The vac pressure until the foaming stops, always top up the electrolyte. Sup cap can be used sooner, no need to wait 1 day after the vac treatment.

[@WTF_BBQ]

@@alexgrandino8777 Thanks, I didn't even think of using the vacuum method. It just so happens I bought one for a different project.

[@ariseagain3423]

It's is just a .0001uf value so don't need to make it

[@blg53]

I think you can improve the quality of your supercapacitor if you replace the ordinary paper with the special one. That is because the ordinary paper is not chemically neutral, it has bleaches and other stuff, so it is somewhat conductive and decomposes easily. By using the right paper you would reduce self-discharge and prolong the life of your device. Great project, by the way!

[@joyofelectronics9782]

Thanks bro. You are absolutely right. If the one who wants to make this project use that kind of separator will get better results.

[@robgad2271]

Common printer paper has a lot of clay in it for hardness and durability, as well as other chemical brighteners and stabilizers.

[@rohithp8868]

What kind of paper can be used the best one which we can avail easily.

[@stefandimitrov2705]

what super capacitor?this is a 100.. 200 nF simple capacitor... he weist the watchers time 😅

[@trevorhaddox6884]

Yep, this is why in old tube electronics you have to change out all the paper based capacitors because the paper degrades over time ruining it's insulating properties.

[@MDRAFIUDDINIQUABAL-yn4fu]

Very very honest guy Allah save you and your family.

[@joyofelectronics9782]

Thank you so much brother ❤️

[@teknosql4740]

This is one of the best video on youtube ,

[@joyofelectronics9782]

Thanks my friend 🙏

[@kerloesmedhet3480]

Can we do it with aluminum foil this way or is it different

[@joyofelectronics9782]

@@kerloesmedhet3480in case you use aluminum foil you have to use different electrolyte because sodium hydroxide immediately destroy aluminum foil. When you change electrolyte depending to this you have to change binder so and so. So it is the simplest way to use copper foil bro.

[@kerloesmedhet3480]

@@joyofelectronics9782 So boric acid can be used as an alternative to sodium hydroxide

[@joyofelectronics9782]

@@kerloesmedhet3480 no☺️it change the structure of the binder white glue. The best one is sodium sulphate for aluminum but instead of white glue use acrylic paint with same ratio 👍

[@vishva8kumara]

In Sri Lanka and India you find those copper sheets and ayurvedic and vedic supplies shops, since these are used for making amulets.

[@СергейМатюшенко-ю1ч]

Thank you very much for the video! Very informative! I would like to clarify. I correctly understood that for the preparation of the active mass you used: 1. 9 grams of activated charcoal powder; 2. 1 gram of graphite powder; 3. 10 milliliters of deionized water; 4. 1 gram of PVA glue. Before mixing all the components, you processed the mixture of graphite powder and activated carbon in water in an ultrasonic bath. Then all the components were mixed together and applied to the surface of the previously cleaned copper foil. Did I understand correctly? Why did you choose this ratio of components? Have you experimented with other proportions?

[@joyofelectronics9782]

You did understand very well. Yes bro l experimented and search for years. This is the best ratio. Make sure that you mixed the mixture very well. Thanks for your comment bro.

[@СергейМатюшенко-ю1ч]

@@joyofelectronics9782 Thanks for the answer! In the near future I will try to make a supercapacitor according to your method.

[@joyofelectronics9782]

@@СергейМатюшенко-ю1ч no problem my friend. I really appreciate that and l am looking forward to hear about the result of your supercapacitor.🙏 l will be happy if you share with us. Good luck

[@Telephonebill51]

Ah, the mumble I heard was "active mass". That clarifies nothing.

[@asdfghjklzxcvbnm-p9e]

Hi, can I ask what type of container did you use to store the battery and if it has a size that is thicker and more spacious than what you had use? Thanks.

[@CrezymedJohn]

i dont know how youtube algorithm work, i stumbled upon this video. Somehow I learn something new: activated charcoal and graphite. Probably I will use aluminium foil instead, easily available in the kitchen. Thanks for sharing and raise curiosity to build one.

[@joyofelectronics9782]

Keep this in mind if you use the same electrolyte and glue with aluminum foil you will not be able to successfull and your Supercapacitor will not work. You have to use different electrolytes and typ of glue with aluminum. So you had better to use copper foil.

[@CrezymedJohn]

@@joyofelectronics9782 wow, thanks for pointing that out! I often passed chemistry class, it is super complex for me it almost fail my high school graduation. I think I can find copper foil in market place. NaOH should be available also there..now, the only limited available is my time.... Lol.

[@ShaLun42]

Aluminium will react with sodium hydroxide.

[@manojaravindsankar3859]

@@ShaLun42 Hi. What electrolytes are suitable for Aluminum foil?

[@ShaLun42]

@@manojaravindsankar3859 aluminium foil is just not good for this thing because aluminium is highly reactive

[@en2oh]

Nicely done, but consider degassing with a vacuum. Also, consistency might be improved by using doctor blade and a rolling mill for calendering the electrodes.

[@joyofelectronics9782]

That’s right 👍

[@NadeemAli-v2e]

Wow good job sir

[@hdtjjfdyj2110]

Wow nice home ❤ work

[@christopherleubner6633]

All that is needed to make a supercap is 2 foils made of an unrective metal, activated charcoal, graphite powder, distilled water and a mesh spacer to ensure the charcoal layer is uniform. Both the graphite and activated charcoal must be free of ions as possible. ❤

[@IPagma-n7f]

Finally a tutorial that is real not like other indian capacitor who writes the polarity can capacitance without even measuring it

[@joyofelectronics9782]

Thank you. By the way l am not an Indian 😀

[@ahmed-najdi6818]

ashkuruk ealaa maelumatik ahsant mumkin mukawinat albataaria

[@kabandajamir9844]

The world's best teacher thanks sir

[@joyofelectronics9782]

Thanks a lot 🙏

[@lymmentrixprofessional]

This is the best diy I have ever watched, thanks so much for this amazing project or more like product

[@joyofelectronics9782]

Thanks brother

[@jims9895]

thank you for following through with the step by step vid... very much appreciated

[@joyofelectronics9782]

No problem my friend. Thanks for your comment.🙏

[@haxificality]

You are freaking awesome. I hope you can share some information like, what aspect of the methods or materials determines the voltage and the capacitance of the super capacitor?

[@joyofelectronics9782]

Thanks my friend l will make a such video soon.👍

[@nerog3136]

Thanks for.this.Didnt know it was simple to make.Awesome.

[@joyofelectronics9782]

Thanks

[@LearnEnglishWithMe34]

You really amazed me with your every video 👏👏👏it is simply excellent

[@joyofelectronics9782]

Thanks brother ☺️

[@TMEC22]

A capacitor will have seperators known as dielectrics. There would typically not be electrolytes (conductive solution) saturating the dielectric. This device may be more of a battery than a caoacitor. I am going by memory so I maybe missed something in the video. 200 fd, or even 100 fd are a tremendous amount of capacitance, is it not? I have personally used a 1 fd cap, some 20 years ago. About the diameter of a quarter and 3/4" high. That became possible only thru new technologies in the process of creating surface area thru porosity. Again, dont take my comments for gospel.

[@animehair05silently88]

supercapacitors use more than just normal capacitance; specifically they use double layer capacitance, pseudocapacitance, or both if i understand what I've been reading and listening to correctly. I don't remember what double layer capacitance is but iirc pseudocapacitance is when ions from the electrolyte are attracted to the charged plate of a supercapacitor and help give additional capacitance beyond what a true capacitor would have.

[@Bauer93Ms]

Yes, something like a copper-carbon battery. Otherwise, why would you need acid?

[@annoon-i1l]

how did you connect or fix the copper electrode to the cloth?

[@veyisaltay1313]

Kullandığın kimyasalların ne olduğunu anlamadım. Birde farad miktarı nasıl ayarlanabilir. Pozitif ve negatif nasıl belirliyorsunuz Teşekkürler

[@ahmed-najdi6818]

اشكرك على معلوماتك احسنت ممكن لوسمحت المكونات البطرية

[@OmidGipsy-vu1qu]

Nice very good

[@muhammadalvan8426]

can i know what size the plastic tube for supercapacitor u use?. can i use glass tube and with different size?the height,diameter

[@MrMraza123]

Waiting eagerly for your next video

[@joyofelectronics9782]

Thanks bro. I have been posted some more videos. I will be happy if you watch them as well🙏

[@preciousplasticph]

Can I use polyester cloth like the type used in athletic gear? It does not absorb water, nor decomposes. I have many tons available for free, and I have machines to mold capacitor cases.

[@shreyrohilla7883]

How did you determine that 1.2 volts was the max voltage of this capacitor?

[@joyofelectronics9782]

The electrolyte used in capacitor determines the max operating voltage. For aqueous electrolyte it’s 1.2 volts

[@shreyrohilla7883]

@@joyofelectronics9782 That is very interesting. How did you determine this? Could you provide me with any documentation/ literature that states this?

[@blubb7711]

@@shreyrohilla7883I think it’s because water starts electrolyzing at higher voltages.

[@Maybomdau_TanViet]

The best video. Thank you so much. I will try supercapacitor like this

[@joyofelectronics9782]

You’re welcome my friend. Good luck with that 🙏

[@johnhamilton4816]

Here's a good one to try.... Using polyurethane make 2 different mixtures one containing graphite and one conductive aluminium powder(the finer the better). Then with the mixtures make 2 conductive strips one from the graphite one from the aluminium and when they are dry tape a wire to each one... Then add the separator and electrolyte(do not over saturated) and roll it up the same... The rubber conductors are already polarised so it should give off a pre charged current with uptona 1.2v potential and a considerable amount of amps... The idea of this is to make less or virtually non corrosive conductors which means stronger electrolytes can be used... Iv found ash especially cigarette ash to be a great electrolyte with less corrosion rate than sodium chloride, blood too is unbelievable stuff and you might be surprised to hear that tests with semen have proved to be quite shocking... Blood will still corrode but at a very very slow rate, while other bodily fluids don't seem to cause any corrosion,

[@VenkateshksDr]

Use aluminium foils then paper and then the paste and caustic soda you would have made a far efficient and powerful aluminium air battery!!

[@joyofelectronics9782]

I know that my friend. I have a video about making Al-air battery on my channel. But here l am making a Supercapacitor not an al-air battery bro👍

[@politicalvegan]

The thing that changed the top voltage is the thickness of the paper between the plates right?

[@joyofelectronics9782]

@@politicalveganno

[@davidconner-shover51]

@@politicalveganit's the use of water, voltages much higher will begin to break it up into hydrogen and oxygen, further reactions to follow

[@evdekiminikatolyem9840]

ellerinize sağlık hocam hem konuşma şeklinizden ve lavabo açıcısını görünce türk olduğunuzu direk anladım :D

[@joyofelectronics9782]

Eyvallah kardeşim ☺️

[@FixitEasyDIY]

This is interesting ❤

[@brianbloom1799]

When your making this capacitor How will you know what the voltage will be,How will you know if it's 400 -600 volts, or 200 volts. That's what i need to know

[@joyofelectronics9782]

The electrolyte that you used determine the operating voltage. The operating voltage of all of the aqueous based electrolyte is 1.2 volts. When it comes to capacity. We calculate according the duration of the time.

[@rewffw]

That is NOT a "supercapacitor", that is an electrolytic cell, furthermore once applied the electric current it produce hydrogen gas and the copper foil oxidize. To make a real supercapacitor you need a NOT aqueous polar liquid, like for example pure acetonitrile, and seal very well the plastic tube.

[@joyofelectronics9782]

You are mistaken my friend there are both aqueous and non aqueous type of Supercapacitor. If you apply max 1.4 volt to charge this Supercapacitor there won’t be any electrolysis so hydrogen gas won’t produced.

[@trevorhaddox6884]

It is an aqueous elecrochemical capacitor, which is a form of supercap, not a battery.

[@jagmarc]

I think this is meant to be a electrical doublelayer cap EDLC after Zhang, Candeleria et al 2013. Which is more a psuedocapacitor than supercaoacitor. ion dffusion galvanic than is electrostatic. Ok so people will be making their own replacement EV batteries instead of paying out $30,000

[@adrianretamozo4936]

Do you think it will give good results if I only use the activated carbon without using the graphite?

[@joyofelectronics9782]

Not as good as mix of them. Because graphite plays a critical role to increase conductivity. If you don’t add graphite the esr of the cap will be a significantly high.

[@dmitry1976yt]

I suppose you can take graphite from electrode of AA/AAA zinc battery

[@muhammadalvan8426]

hello sir, do u have journal or research article about this supercapacitor. i wanna study more about this. please share if u dont mind. thanks

[@joyofelectronics9782]

No l don’t have brother

[@muhammadalvan8426]

@@joyofelectronics9782 can i know what size the plastic tube for supercapacitor u use?. can i use glass tube and with different size?

[@thalib_10]

what is the length and width of the Cu foil?

[@harrisvs]

very good job,If I use coffee filter as paper will it be better?

[@joyofelectronics9782]

There won’t be any significant change

[@kennethcoutinho4439]

Too good 👍

[@joyofelectronics9782]

Thanks

[@jabłczan]

Thank you for this video! Can't wait to build my own supercap My recommendation is to make shorter version of the video, people usually get tired of watching so long tutorials

[@joyofelectronics9782]

I know that brother but l wanted to give and explain all the details and make it more sensible.

[@DinoDiniProductions]

I know, right? People just have to rush off to the next tutorial they have to lap up instead of actually building anything.

[@ArshadMehmood-kz6ez]

Please material, chemicals , how much qty mix, mentioned in description or your website link.

[@رشيدحدادة]

Great idea, long battery life.

[@bromisovalum8417]

Nice work! btw you can get chemically pure NaOH from soap-making outlets. Drain opener is technical purity, often the pellets are coated with nitrate to minimize the hygroscopic nature. I don't know if this affects it much, but it's a thought. Did you weigh the NaOH and water? Or does any strength solution work?

[@joyofelectronics9782]

Thanks brother. It doesn’t affect too much. I had either pure sodium hydroxide but l used drain opener as it can be found easily for people. But the one who wants make this Supercapacitor can use pure and higher quality sodium hydroxide.

[@farabielec]

Thank u. What other electrolyte type can be used and easly availabe ?

[@joyofelectronics9782]

Thanks. This is the most suitable one with white glue and copper foil brother.

[@annoon-i1l]

thank for efforts, only two questions what is the composition of the electrode material and the electrolyte and don't think that the same electrodes in the same electrolyte will lead to zero volt? ??

[@joyofelectronics9782]

Thanks brother. You can watch this video: kzbin.info/www/bejne/mqKapXqVZ8mfnZIsi=q2rMtAU_Fr-Ls9S8

[@الچنيص]

Please reply me. I am looking for sodium sulfate in my country and there is no such ingredient. Are there some alternatives that I can find?

[@joyofelectronics9782]

It depends, but if you use copper foil as current collector, then you can use sodium hydroxide, magnesium sulfate also.

[@kiahalhay1163]

hi, asking the same question here: So this capacitor scaled up 100 or 1000 times can give me few hour backup and act as a battery? Have u tested its self discharge rate?

[@joyofelectronics9782]

Yes it can. You can use several of them as a battery

[@kiahalhay1163]

@@joyofelectronics9782 there are many types of activated carbons available on Alibaba, some are in (granular) pallet form for water filtering, others are used for skin care products etc... And if I search for battery grade activated carbon that becomes very expensive. any solution to source high quality activated carbon?

[@rajahalex460]

Can please tell me the ratio of the copper foil cleaner ( H2O2 + HCl ) And the compositon of the paint applied over the copper foil and the electrolite liquid

[@joyofelectronics9782]

70% hydrochloric acid 30% hydrogen peroxide. But the ratio is not very important. You can also dilute the solution with water.

[@ArchetypalCat]

Have you tested how many charge-discharge cycles it can go through before it starts to breakdown? (Discounting any breakdown time of the paper.)

[@joyofelectronics9782]

I am still using the supercap and it’s still working. (More than 1000 times charge and discharge for now)

[@ArchetypalCat]

@@joyofelectronics9782 very cool and quite inspiring. Thank you.

[@muhammadalvan8426]

how u charge it sir?@@joyofelectronics9782

[@PsiOmikronDzeta]

Great video but... please, use safety gloves for your own sake

[@joyofelectronics9782]

🙏

[@Maririnnnnn]

Can I kindly request for the articles used for research purposes?

[@ayinlaridwantobi7988]

Great job guys. I learn a lot by watching this video and reading comments here. Please can anyone help me with how to charge my supercap using a potentiostat. Kindly help

[@tomwoods6828]

Thank you for your very interesting video. There is one point i don't understand and i hope you can explain. When the cap is finished and filled with electrolyte, why doesn't any charge built up in the copper foil just short out across the leads, which are emersed in the the electrolyte and, therefore are electrically connected. Thank you for helping to clarify.

[@joyofelectronics9782]

Thank you. It’s about the working principle of the cap. As it is Double layer capacitor each electrode attracts the positive and negative ions of the electrolyte so they balance each other.

[@tomwoods6828]

@@joyofelectronics9782 I have started gathering materials to experiment with. You are an inspiration. Thank you 🙏

[@joyofelectronics9782]

@@tomwoods6828 you’re very welcome mate.👍

[@frequencywatchers]

This Is SUper ! Super Capacitor! GREAT JOB!

[@НиколайАртемёнко-х7х]

Стеклоткань вместо бумаги и засунуть в термоусадочную трубку, предварительно обмазать клеейм. Потом залить электролит и спрятать в пластмассовую гильзу... Будет простенький суперконденсатор, на напряжение1,2 в. маловато конечно. Но позолоченную фольгу на такие безделушки пускать дорого, а как ещё повысить немного напряжение я не знаю.

[@154brother]

Hello, don't you use a separator ? it seems to be important

[@travismoore7849]

Maybe you should put a small cork in the top of that to keep it from spilling.

[@rookie3279]

I wish i discover ur channel sooner! Than u so much. Is there s a way to contact u.? Im doin research on biomass derived activated carbon supercapacitor.

[@joyofelectronics9782]

Thank you so much my friend. Unfortunately here is the only way you can contact with me. But l will try to help you in any way l can. So you can ask everything you want brother.

[@MatbiangShadap]

What is the thickness of the copper foil?

[@joyofelectronics9782]

20 micron is fine

[@ManSingh-mw1il]

Would you please tell the concentration of HCl and H2O2 in the cleaning solution?

[@joyofelectronics9782]

It doesn’t matter

[@adrianalfredoretamozogarci6682]

Dude, what happens if I leave the supercapacitor with the electrolyte at a low level for a long time? Could it be ruined and I would have to build a new one?

[@joyofelectronics9782]

Let me explain dude. Normally pure sodium hydroxide is corrosive and aggressive to copper but very friendly when up to 60 percent ratio solution in water. So when the level of electrolyte decreases some pure sodium hydroxide will remain on the electrodes and it will start a chemical reaction and it will cause self discharge and ruin your Supercapacitor overtime. That’s the main reason. I hope this helped.

[@xddelectronics]

Merhabalar dediğiniz şekilde süperkondansatörü yaptım 1,2V ta şarj etmeme rağmen bir süre sonra 5-6 kullanımdan sonra akım düşmeleri gözledim. içine bakınca bakır elektrotlardan biri oksitlenmişti muhtemelen iki tane ayrı ayrı yapıp seri bağlarsak bu sorun çözülebilir.Yada elektroliti değiştirmek lazım galiba.

[@joyofelectronics9782]

Selamlar kardeşim. Eğer aktif maddeyi güzel yapıp dökülmeyecek şekilde yaptıysan bu sorunun en muhtemel sebebi. Bakır elektrotlar sıvı buharlaşınca doğrudan sodyum hidroksite maruz kalmıştır. Yaptığını görmeden bir şey demek zor ama bu kadar çabuk deforme olamaz. Benim 5 yıldır kullandıklarım var. Çok çok az düşüş oluyor.

[@abdellahmrij4112]

awesome brother good job

[@joyofelectronics9782]

Thanks brother

[@jilianealumbro3804]

I have another question, if I left the battery for 1-2 days soaked in the electrolyte, can I charge the battery more than 1.2V? If yes, what is the maximum voltage at which I can charge the battery?

[@joyofelectronics9782]

No, it won’t change. But if you add some iron oxide to the active material. The operation voltage will increase to 1.6 volts.

[@jilianealumbro3804]

@@joyofelectronics9782 thank you. When I do something like this can I change the active material?

[@urvhalt]

Internal resistance?

[@joyofelectronics9782]

Approximately 10 miliohm (0.01 ohm)

[@urvhalt]

@@joyofelectronics9782 good thing you didnt short them leads... with 200F behind...

[@tchinobingo3277]

Can i use salt plus water instead of naoh?

[@joyofelectronics9782]

No

[@adrianretamozo4936]

My friend, what formula did you use to find the capacitance?

[@joyofelectronics9782]

There two basic way to find the capacitance. First one is discharge method and the second one is charging method. I used charging method. The formula l used: l/C = V (per second). So if you charge the 1.2 volts capacitor with 1 amp and let say it take 120 seconds. At that time we can say that the capacitance is 100 Farad👍

[@adrianretamozo4936]

@@joyofelectronics9782 Great! Thanks for the reply and your excellent work 😄

[@urvhalt]

... the internal resistance converts some power to heat....

[@DFPercush]

@@urvhalt All power is converted to heat. The question is whether you can do some useful work in the process, like spinning a motor, or forcing electrons against a gradient to a higher potential, i.e. charging. Heat doesn't make electrons leave the system, unless you're building a thermionic emitter like a CRT or something.

[@nicholaswatt5963]

​@@DFPercushThe charging process is not 100% efficient, thus some energy will be lost, leading to an incorrect capacity estimation.

[@mikehensley78]

why is it limited to only 1.4 or 1.2 volts??? is it possible to make 5volt ones?

[@mikehensley78]

Also, this is super cool stuff. right up my alley.

[@joyofelectronics9782]

Due to electrolyte. Aqueous electrolytes are limited to the range between 1.2 and 1.4

[@thalib_10]

what is the keyword for buying online the plastic container?

[@ThailandAmazing]

Wrong. I made electronics for military. Do it this way 1 Degrease in acetone. 2 soak in a alkaline cleaner for copper. 3. Pumice scrub copper no swirls should be pink 4. Rinse distilled of dionized water 5. Soak in 10% sulfuric acid. 6. Rise in distilled water 7. Airflow dry 8. Put in dryer box 9 now paint

[@joyofelectronics9782]

It’s very tiring and expensive way while being right and perfect way.

[@adrianretamozo4936]

My friend, I am trying to find the capacitance of my super capacitor but I can't get a power source, you mentioned that it can also be found by discharging it, for that I would need a resistor?

[@joyofelectronics9782]

You need a resistor or a suitable power source or you can use a LED or a dc motor which you know it’s power.

[@adrianretamozo4936]

@@joyofelectronics9782 Perfect, I was thinking of using the formula t/(R*ln(2)), is that correct?

[@joyofelectronics9782]

@@adrianretamozo4936 l am not sure but l guess this formula is for electrolytic capacitors.

[@jabłczan]

​@@adrianretamozo4936this formula applies for electrolytic capacitors and super capacitors as well. It's general for capacitors which way of working is the same.

[@DFPercush]

You can use a shunt resistor and an amp meter to measure the total charge stored by your capacitor. Or use a volt meter and ohm's law, but what you need to calculate is the current over time. Charge (coulombs) is the area under the curve, or the integral, of current. amps * seconds = coulombs. So measure amps every (dt) seconds until fully discharged, add those values together, and multiply by (dt). Smaller dt will give you more accurate results. Divide coulombs by volts at full charge, that's farads. P.S. It's easier the way he did it because he has a constant current charger. So all he had to do was multiply current * time / voltage

[@marlowe7604]

What type of glue did you use?

[@joyofelectronics9782]

White glue (PVA)

[@nimalsandunsiri4024]

Thank you very much

[@recramorcenlemniscate7945]

Any issues with using this technique to make a HV (10-40kV) Supercapacitor?

[@martinmtawali7359]

Insulation will be the biggest problem

[@recramorcenlemniscate7945]

@@martinmtawali7359 mylar should be fine.

[@harshivpatel6238]

Both the insulation & the electrolyte limit the max voltage

[@joyofelectronics9782]

Brother making a Supercapacitor like this is completely different from making a hv capacitor. There is a video about making hv capacitor on my channel. Please have a look at that.

[@joyofelectronics9782]

Here is the link of the video: kzbin.info/www/bejne/f6q5ZmuObN1jja8

[@jamierivera7259]

Next time,just apply the graphene in a circular manner,so that when the electrodes enter the system,it flows from the bottom up in a circular pattern

[@jabłczan]

I've just tried to make surface material in proportions said in video, but it is only wet powder, not even close to liquid, 🤔 it seems like it's impossible to make this liquid with such small amount of water, what to do, or, is something that I made wrong? active carbon and graphite were very fine powders and i used deionized water, not added the glue yet

[@joyofelectronics9782]

Brother you can add some more water until it becomes in the form you want and you must add glue otherwise when the paste dry it will be just powder again. Do what l said you will be successful 👍

[@jabłczan]

Thank you for advice 😊

[@dr.yosefjazaa2481]

thank you for the video

[@joyofelectronics9782]

👍

[@siddharthsingh1294]

i made it the same way bt not working, discharging really fast , what to do

[@joyofelectronics9782]

Your active material must stick to the copper foils well and purity of the materials actually the electrolyte is play an important role. Practice more times you will get better results.

[@siddharthsingh1294]

@@joyofelectronics9782 could i have your email id

[@gmmo]

have you ever try without electrolyte?

[@joyofelectronics9782]

It doesn’t work without electrolyte

[@gmmo]

@@joyofelectronics9782 try using sparator from scrap phone battery or scrap hi voltage caps ie 400v from power suplay or low watt fluorescent lamp. it may become very high voltage super caps. 🤣🤤 want to build super caps from scrap battery for engine starter boost. but too lazy

[@gmmo]

@@joyofelectronics9782 here used phone or tab battery still decent condition only 0.3 dollar.few dollar in series 3s with bms or 4s can replace motorcycle battery. 3s and 3 or 4p can start a car. or use as emergency jump starter

[@hotbird3]

🙏👊 great video, now ofcourse its all about surface area ,BUT, if given only one option , would you rather make your supercap in the wider (more turns) or longer (same diameter but longer length) to increase capacitence,,, are the effects even the same 🤔

[@joyofelectronics9782]

Yes it doesn’t matter. It’s all about your choice. I like wider ones but it’s little bit difficult to roll😀

[@hotbird3]

@@joyofelectronics9782 👊👍

[@jistyclovek4693]

Hmmmm supercapacitor, supercapacitor... I have drinking game idea😂 Great video👍

[@pragyakumar5070]

Hello brother, I don't have this charging device. Is there any alternative device that i can used to charge my supercapacitor? Please reply

[@joyofelectronics9782]

You can use simple circuit with AA battery to charge it.

[@pragyakumar5070]

Thankx bro

[@adrianretamozo4936]

I was able to get a motor to run for 15 minutes by charging the super capacitor for only 1 minute with a 1.5 volt battery, it's amazing (I just need to charge it to the maximum to see how good I got it).

[@joyofelectronics9782]

Cool

[@brentonrowland8613]

It is a capacitor not a battery, the anode and cathode are identical. It is 'Super' due to huge surface area of activated carbon . What thickness copper foil are you using?

[@joyofelectronics9782]

Thanks for clarification👍 50 microns.

[@jlrinc1420]

Can they be put in series to get a higher voltage like batteries?.

[@criznach]

I think you just ultrasonic cleaned my ears. 😵‍💫

[@joyofelectronics9782]

😂😂😂

[@channelduit1474]

Cara ionisasi itu menggunakan apa?

[@adrianretamozo4936]

Friend, what is the maximum voltage that this capacitor can withstand?

[@joyofelectronics9782]

1.4 volts bro. Higher voltages start electrolysis.

[@FargothPL]

Why only 1,4V and not a 2,5/2,7V?

[@haydarkamil9702]

Abi kupır foil ne ya bakıra karşı fobi oluşturdun bende

[@joyofelectronics9782]

Telaffuz hatası kardeşim 😀kapır foil olmalı

[@rohithp8868]

What are the other electrolytes which can be used because once I cut open a super capacitor I got smell of nail polish remover lol 😆

[@joyofelectronics9782]

There are two types of electrolyte 1. Water based 2. Organic electrolytes. In professional Supercapacitors mostly the second one is used. That’s why you got that smell 😉

[@ThailandAmazing]

Better to use ph meter to find perfect electrolytes. And use distilled water

[@jlidisaid9531]

Good job bro 😁 can we change copper foil with aluminium foil ?

[@joyofelectronics9782]

If you’re going to use sodium hydroxide as the electrolyte you can’t use aluminum foil. But if you use sodium sulfate then you can use aluminum. But at this time you should use a special binder instead of white glue.

[@jlidisaid9531]

thank you so much@@joyofelectronics9782

[@kerloesmedhet3480]

Good job my friend, the best content is really useful

[@joyofelectronics9782]

Thanks my fellow 🙏

[@kerloesmedhet3480]

@@joyofelectronics9782 Can we do it with aluminum foil this way or is it different

[@joyofelectronics9782]

Aluminum foil is destroyed by sodium hydroxide. You can’t use it.

[@kerloesmedhet3480]

@@joyofelectronics9782 Waiting for you, my friend, to show us a video of how we make an aluminum capacitor

[@joyofelectronics9782]

@@kerloesmedhet3480 👍

[@mickgatz214]

Good Video! 👍

[@joyofelectronics9782]

Thanks

[@ahmed-najdi6818]

Thank you for your information. Well done, the components of the battery

[@joyofelectronics9782]

Thanks but it’s not a battery ☺️

[@ahmed-najdi6818]

@@joyofelectronics9782 What is the duration of the acid?

[@dkjawahar-techexpt671]

Friend can you share the materials you added to prepare carbon coat. I was unable to get the information clearly.👍

[@joyofelectronics9782]

No problem brother. 10% graphite powder 90% activated carbon. Add white glue with same amount of graphite powder by weight. And necessary dionized water. Stir the mixture very well

[@dkjawahar-techexpt671]

@@joyofelectronics9782 Thank you 👍

[@allendaves2001]

Thank you ....I have a hard time hearing. Could you text out the ingredients used and what proportion they are used in mixing the black past.

[@joyofelectronics9782]

It’s written in a comment answer. Please check it out.