How To Make A SuperCapacitor - Step By Step
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- Опубликовано: 9 фев 2025
- A 4 farad 1.2v graphene supercapacitor and how to make it step by step. You can buy kits and materials for your own experiments as well as my ebooks from our webshop at secure.working...
Robert, I know this is an older video, but they're all such excellence & I picked this one to comment because I get a kick out of it every time.
You sir, are the greatest. Absolutely the greatest individual Ive encountered. I wish I could work along side you, that would be fantastic.
I greatly appreciate your work, the simplicity in which you're able to convey the information to your audience, and I too find top humor in the things you have a good chuckle about.
Despite the simplistic conveyance, your passion for the things you do in science is always very clear.
Thank you for the experiment ideas and knowledge, and know that some guy in the first state of the US is thankful for what you do and finds great joy in your videos.
Thank you, sir!
I thought no one was making videos that perfectly explained these convoluted things. It makes me happy that people are showing how to make these basic parts of very cool new technologies
cheers mate
New lol 😂😂
LOL your laughter at the achievable scale of these things despite almost no care or precision taken, is infectious. Think I'm going to have to go back over some of your earlier vids as a primer and give it a go at last. I've been merely observing for too long.
+TheBaconWizard good man - let me know how you get on
+Robert Murray-Smith I will do :)
+TheBaconWizard cheers mate
@@TheBaconWizard Well, it's been three years now? Guess the capacitor roasted the bacon wizard.
STOP🤨🤨🤨🙏🙏🙏. Be warned… if you subscribe and try even ONE. You’re gunna get got. I have a whole kitchen slowly turning into a laboratory and a gsmall group of neighbours that are convinced I’m “not normal”.
Also… your going to have (to use the Australian vernacular), a “shittonne” of fun 😂😂
When he announced "4 farads" it genuinely made me smile. The future looks bright.
awesome mate lol
It's good to watch these old videos from 2016. Full of great info :)
My left ear enjoyed this video...
that'll be the one to use then
Uh, that was left? I've reversed my speakers then.
I thought it was 1980 mono tv
Hey guys take it easy just enjoy....lol
I did enjoy it, very much actually. But only in the left ear.
I know I've said it before, but truly love watching your videos. Mainly because you are such a big kid!!!!😜😜
+Eflat Productions lol cheers mate
I don't know if I would word it that way as I wouldn't dare risking to offend him, but I would agree that RMS is having way too much fun! I'm thinking he must be single, but if not I'd like him to explain again how he exfoliates graphite in the microwave.... without getting scalped by the wife that is.
lol - i am married mate - there are quite a few videos on microwave exfoliation 'a' does a really good one
Your channel is giving me flashbacks to the days when BBC used to actually be educational. Thought provoking content that encourages us to explore the perpetually uncharted world of tinkering in our own garages and kitchens? We haven't had that spirit here since 1969! lol. Hats off to you sir and thank you for the inspiration. I really appreciate your enthusiasm in your presentations. It's contagious
This is one of the most important videos ever made! I am damn serious about that assertion.
Damn right! Now how about this question? How do we know that the GO is actually graphene oxide? That would certainly account for why the AC does so much better, right? We really do know that the activated charcoal is as advertised. The GO....not so much. We really need a bodged together Raman Spectrometer in here!
Hello Robert, I just wanted to say I have been putting off opening a google anything, BUT I did cause I APPRECIATE all the effort and commonsense you are able to impart to anyone willing to get their hands dirty. SO>>>> Thank you for your time and efforts. GREAT job
RMS, you're truly one of the greatest of all time.
-joshua bertrand
I love your videos and how you share your knowledge with others. To those who criticize you in any way are nothing but complainers, not contributors.
This video was the spark which ignited a raging fire. (Not literally) I have watched it and shown it to so many friends. My obsession with building supercapacitors marked the start of a very wonderfully strange chapter in my life. the one thing that I was inspired to try was to use “neverwet.” As a separator on carbon fiber veil that has been lightly electroplated with either Au, Cu, Ni or Ag. using sodium silicate as both a binder, and electrolyte; when mixed with a very small amount of grapheme oxide and acetone and doing what could be interpreted as a supercritical drying process, by freezing it, and subsequently baking it @ 250-450f in a (homemade) autoclave under the highest vacuum I could generate with a couple of reversed air compressors and a refrigerator pump , the whole thing puffs up like breakfast cereal, and hardens. Technically; I believe it falls under the definition of solid state but I don’t have any collegiate education, so its highly likely I’m wrong about that…(I later realized I had made a kind of grapheme/silica aerogel) it was solid state but in regular atmospheric conditions(I live on the rainy side of the big island of Hawaii) it would melt after a few days. I also tried this as a bastard version of the “crystal battery” which has been used in the RUclips community by many, for a long time. This tiny device seemed to charge itself. Unfortunately the majority of my toiling was destroyed in the 2018 LERZ eruption which ate half of my neighborhood, and proceeded to melt a few more including the town of Kapoho, the largest eruption in the recorded history of Hawaiian islands. It also added an additional 18 acres or so to the island after filling in Kapoho bay. The lava was extremely liquid, and at one point it measured almost 4000 degrees Fahrenheit. I have been working as a guide in the ocean and on land for a dozen or so years taking tourists to get on top of and adjacent to active lava-ocean entries. I have never measured lava more than about 2700f. My point is that there’s an awful lot of elements that came to the surface in my neighborhood and have been oxidizing in different layers for the past 4 years. The lava was 120ft thick in some places(will be cooling off for the next 20 years or more)but it is porous and has seawater leaching into it. I’m wondering if the flow fields may possibly be able to hold a charge…there’s a geothermal power plant that just so happens to be surrounded by the new lava… I find it very intriguing. I have 2 children who are 3 and 5; I rarely get the opportunity to talk to anyone who has the slightest idea what I am trying to say…what do you think?
I knew you were an excellent teacher the moment you said the current combinations are probably not the best so experiment.. subbed!!❤️😊
Thank you Robert, not for only answering my question of "how to" cleanly and clearly, but inspiring me to experiment and find tomorrows technological break-throughs thanks again great as always keep it up!
awesome mate - I am glad you found it useful - cheers
And there was I, thinking that you'd need all sorts of clean-room conditions and highly technical and expensive processes. Thanks for that, subscribed! I shall be watching a lot more of your videos!
cheers mate
its all about how u use basic science to do complex designs
no fancy stuff required
if u have the mindset and wisdom u can do anythink
i agree mate - well said
One of the best video's I have seen on You Tube, well done. I think that these devices will be the future of everything electronic. In admiration, an elderly, retired electronics engineer weened on vacuum tubes....;-)
awesome mate - cheers
Hello, you are doing a very interesting job, but more valuable is that you share the fire of the heart. Good luck with your endeavors and good health to you!
I so love watching your videos. I was interested in science as a child and was learning from a teacher that reminds me of yourself. Having someone with such a infectious attitude of teaching is grand. I was transferred during my middle school years but never found a science teacher such as yourself that was so knowledgeable of his teaching as much as you. I find it is never too late to learn. Thank you so much for your videos. From across the pond Hello and have a great day.
hiya mate - thanks for taking the time to write and say that - awesome my friend - cheers
Great...marvellous video, Mr. Murry-Smith!
Love and peace to you and your beloved.
Fantastic, love all your work and videos, your attitude is spot on, you are without a doubt contributing in no small way to making our planet and lives much improved. As your experiments prove, one guy can do some amazing things, with a little ingenuity. All the very best to you Robert and your team and everyone.
Absolutely amazing that such a high capacitance can be produced so simply and cheaply!
i think so too
People may be wondering why you're laughing. Not many years ago a one farad capacitor was pretty much unthinkable on a practical level. To be able to make one in 5 minutes using pennies of common materials from your house is unimaginable.
It's the electro-chemical equivalent of being able to make a smartphone in your tool shed for $5.
really nice way of putting that mate - cheers
You can make a smartphone In your toolshed for 5 dollars
Davey Hi his laugh was contagious. haha
Standard capacitors of that size are 1,000,000th the power.
I remember solving physics exercises and having to restart calculating from scratch when getting a result in farrad class because it was unrealistic and when you get a result not in uF or nF you're almost certain that you've made a mistake and have to start from scratch.
Thank you for sharing your knowledge.
+John Allen cheers mate
Thank you so much for not editing the waiting period out! LOL
By the way, 3rd viewing. We all need to watch at least 3 times.
I think you have a fantastic ethos regarding try it yourself, change the recipe etc. That is the way I have always learnt, often more with failures, but persistence is the key to success. Keep up the good work, you will make that million.
+Martin Counsell lol - cheers mate - what is it Edison said 1% inspiration 99% perspiration lol
So touching to listen to your enjoyment upon pondering the measurements. thank you for your consideration to teach. the video was crystal clear and well done With tons of highly informative research. This is undoubtedly the best technical video I have seen in the last number of years. This was recommended and I couldn't have imagined the value. So it was quite encouraging. Funny I was searching around asking about measuring large capacitance meters and was told they did not exist. Glad that was wrong! Cheers!
thank you for taking the time to post and say so mate - cheers
This is all new to me,
I'm fascinated watching your experiments, particularly the Hemp and Graphene battery.
I wonder how many businesses (big and small) have approached you?
Anyway, keep up the great work, thank you from Australia.
Four Farads is a crazy amount with only 2 plates and a few grams of materials! Mind blown!
I would go back to school to take courses from you Robert. This video was great. I love learning from you!
cheers mate
VERY encouraged here to experiment now! Thank you dearly for your dedication and open source attitude!
+PartisanGuerrilla and let me know how the experimenting goes
Incredibly inspiring, i am so happy for finding your channel.
One of the great informative video I have ever watched, thanks a lot sir for showing the capacitance ,
Apriciate you a lot
I just want to thank you for this video! Been wanting to experiment with making a super capacitor power storage system
+Kevin Hughes (netsplit) cheers mate - good luck with it and keep me in touch with how it goes
Wow!! 4 farads in 1Sqcm!!! Discovery of your channel has been the best thing that has happened to me in the last couple of weeks. It has rekindled my childhood interest in doing science experiments. The first thing I am trying to replicate is your NASA Stirling engine but with 2 Pringles potato chip cans…not successful still as I think the rubber balloons as membranes are too hard for it, or maybe using hot water cop to heat is just not enough to make it work. Will keep trying and if successful will post here. Thanks for all the fantastic work you do 🙏🏻
Superb video, outstanding results
Imagine banks of these to fill a building for storage of PV solar driving inverters, better yet no inverters and use the D.C.directly
+Craig Nehring that would be cool - get building lol
"kitchen paper, because it's easy to get hold of" good times, good times.
Bbbbbb
Really astonishing on table top without any messier a 4 farad grate... on the face of others who make it so delicate and something that can be manufactured in pricey labs...
just think of all those greats who did wonderful work without pricey labs - exploration of ideas doesn't need a great deal of money
Very well said .... I belong to India from a ruler back ground ... I was fortunate that I got chance to study and become capable to earn bred ... but when I go back I created people and villages having less electronic... still they just have 4 hr in full day ... I always think of doing things that could benefit them ... so I keep on reading and understanding things that can help them ..
Like super capacitors ... they can charge fast ... but the thing is that they can with hold that like battery... I constantly look beat of both worlds... they can charge fast .... with stand the charge like battery ... cheap so that all people can afford and can solve there real life problems ....
i always try to make things that can be produced any where in the world with a minimum of machinery - if any at all!
Hey Rob, I have started watching your videos very recently, just want to say a massive thanks you are a brilliant mind and a wonderful inspiration!
cheers mate and thanks for taking the time to post
fantastic - clear explanation and fun - yes experiment the components are there so why not... how exciting - really this just opens up a whole new world... thankyou
cheers mate
nice one bought your e-books too, Graphene and supercapacitors - a good excuse to build a kiln in the backyard methinks... love messing with fire bricks and acids... Are you still making the ink for sale?
no mate - but i did a couple of videos on how to make it for yourself
awesome yes I have watched - very inspired by your work and knew I would just have to try something from your vast pool of info... I'm loving the graphene intercalated compound film at the moment, although handy little amounts of aluminium chloride have proven hard to come by in Australia I do have a source albeit expensive - saving pennies...
you can make your own by dissolving kitchen foil in brick cleaner - aluminium in hydrochloric acid - google will help with directions
Great vid Rob, full of step by step information as well as many tantalising ideas hinted at.
I really must make the effort to replicate your experiment and hopefully come up with ideas along the way.
All the best - Martin.
+solarhope - you discover by doing mate
I am saving up now, so I can buy one of the kits from your shop!!
And I am going to have Sooo much Fun!!
I hope to be off grid within this year!! 🙂. XxX.
That is outstanding!!! I'm going to make some of these and see how they charge with my Bedini-starship coil energizer. This is really useful information, and a must try. Thanks for this amazing video
Yup... it's pretty damn impressive. Congrats man and
thanks for sharing. Regards from Argentina!
Like the modern day Professor Laithwaite. Thanks very much.
lol - cheers mate
I love all your videos, very informative and extremely easy to understand. You make a great teacher. Unfortunately I can hear what you're saying in this video and I'm excited to learn about this. Can you please add subtitles?
Please disregard, it was my phone acting up
Top notch tutorial, Appreciate your time and effort, sir
That's pretty amazing
I have watched this 3 times now and it still excites me 👍🏻
Thats 4 times now 😂
A very good learning and knowledge gaining vedio for learners
Bravo. Well done and great work stimulating both the young and the old. Experiments do not have to be hard nor exceptionally complex, just well thought out. Hint, use the noodle...
+BluesDoctor cheers mate - and absolutley
thanks for sharing all your know how. I don't think the wives and mothers like it much though. I can never stop watching.
lol - awesome mate - cheers
That's awesome, sir.
I am a computer student with nearly little or no knowledge of chemistry.
After a little study, I did try heating up graphite powder in a ceramic bowl with 43% phosphoric acid and a few drops of dil. h2o2. What formed was a spongy light grey residue. Don't know if there is any graphene there but there was remarkable increase in conductivity compared to the dry graphite powder. Kindly, cast some light on what must have happened. Thanks and regards.
intercalation
I love this video. When I was working with electronics in the 80's, if we needed a capacitor even close to one fared, we would use an amplifier circuit to simulate it because such a large value capacitor was a practical impossibility. Now you can slap one together as easily as any Mod Podge craft project.
That shows that carbon must have huge surface area.Very good demos thank you.
cheers mate
From the title I expected something simpler but it is very informative
That was a crazy demo Robert! Enjoyed it alot;) Think I might take up the challenge and do experiments on my own. Cheers :D
+noilex go for it mate - and let me know how you get on - there is a whole load of things to discover out there !!
I love the cackle hehe that is impreasive capacitance for such a small package.
Hi, very interesting work, I have watched some of your other videos beforehand but this one was a little tough to follow partly because we didn't get a close up view of the entire process; as it was we had to more or less imagine what was going on several feet away, at the table. It was also a little tough to tell what was going on because you listed so many possibilities for experimentation without spending some time explaining why you chose the ingredients used in the video. I understand that we are being encouraged to try things on our own, yet as another person commented it would so helpful to have the complete process documented (Maybe in the video description?) so we have a baseline to compare and try variations on with a known-working model. It doesn't need to be the best or even fairly good, just something to start with. Keep up the great work!
+flomojo2u Hiya mate - i am glad you like the video - I don't really believe in hand holding too much - there has to be work, effort and failure on your side - that's how you learn
+Robert Murray-Smith I don't really see it as hand holding at all, this is how scientific research is done. You've made some very impressive claims about the capacity and nature of the super caps you've produced, but to allow anyone -scientific researcher or just a hobbyist- to validate your claims it's necessary to detail the exact steps taken. The more ground-breaking and revolutionary the claim, the more the need to validate it. I understand you're encouraging experimentation, however it may discourage some people to be unable to start from a known-good point where they have at least some small hope of it working. It's not always necessary to re-invent the wheel before improving it.
I want to say i liked that you explained the different possible effects of all the different possible materials. It made it more clear what was going on with he process not less as this commenter seems to think. Larfe surface area bound but not insulated by the minimum needed adhesive making contact with the conducting plates best suited for your chosen electrolyte. Simple!
+yougeo Well I'm glad someone found it simple ;). Part of my objection to the lists of all the potential materials/electrolytes/binders is that Robert went on to list so many without actually saying what sort of reasons you might want to use a particular electrolyte, for example. I get that you don't want to use light metals with a strong base/acid as this would dissolve the electrode/plate, that's quite clear. I just would have appreciated reasons that you *would* want to use various materials together, maybe some of the experiences he's had that would be both interesting and informative. And as I've mentioned before a simple statement at the video of what we'll be seeing today (I.e. "Today we'll be comparing XX and XX, using XX and XX Here's why...").
+flomojo2u This video isn't about making claims mate - it's about encouraging people to experiment - if you feel it discourages you - well - no problem - you can't make everyone happy. From the feedback I get a lot of people are encouraged to try and as far as I am concerned the objective is achieved
The content of the video is so amazing, but the quality of the video is so blurry it's really sad. We should all pitch in and buy you a better video camera so we can really see the details of what you're doing.
And better micro (two channel at least). But all an all video is great!
I didn't even notice lol
I'm using a 13 year old thinkpad with a 1024x768 display
A closer view of the detail things would be excellent. I often watch from my cell phone and the RUclips app will not allow me to zoom in or at least not that I have found. I used to be able to zoom but about 8 months ago something changed and I can't anymore. Bummer!!!
So I true. I second that emotion
4 Farads on that device? Ok, Officially mind blown. Not long ago I was doing a Fire Investigation and we found hundreds of Capacitors in a Arsonists storage shed. The PhD that helped us on our case said a 1 Farad Cap would be as big as a room. Either I got the dumbest Engineer or I misunderstood what he was telling me.
a farad used to be huge when stored on a cap mate but that started to change around 20 years ago now you can store a farad on around 12 square centimetres of active material - but you are right 4 farads on that little thing is mind blowing lol
I've already got a hundred projects, but this video convinced me I want to add one more: research capacitors! :D
go for it mate lol
Robert Murray-Smith Thanks for the inspiration, I built a few simple capacitors over the past few days, just on my desk, and with random materials.. but it's loads of fun! :D
it is indeed mate
I love watching your videos, very interesting and informative, may I recommend a microphone on your coller or something closer to your mouth, your shop creates an enormous amount of echo which makes it very hard to follow what your saying. Keep up the excellent videos, thank you 😊
Thank you for this I have been looking into building these and have been looking for a good place to learn I think I found that place!
LOL, been watching old videos. I have this standard ~7.5"*9.5" composition book with 100 sheets on it. I calculated ~18A per sheet pair so ~200A per book. A stack of 4-8 books could start a truck. That's between 1/8 to 1/4 of the normal battery size. And this is with just a standard "everyone knows" recipe using kitchen towels.. LOL.
Ofcourse it would take quite a bit of sheets to match energy storages. I'm thinking, big cheap diy solar storage. And above all, safe.
This is so good lest make things and explain it professionally so everyone love YOU , especially the way you talk , what a wonderful world we live , at end he make a joke of it .
cheers mate and yes it is a great world to live in
How does this only have 125k views......
RUclips CEO is a SJW-Femminist
SJWs dont like useful videos ;D
Never stop, Sir!
+Neil Smith cheers mate
If the long capacitor electrodes are impregnated with an electrolyte, the capacity increase. In some cases, is impregnated under vacuum 24-48 hours. But even without vacuum markedly significant increase in capacity. Thank you for your Vidoje they sparked my interest and now I find it difficult to stay :)
+Karantin Kunz thanks for the comment mate - nice one
Hi Mr. Robert, I’ve been following your incredible videos on supercapacitors and truly admire your expertise. My client is exploring large-scale supercapacitor manufacturing, and your insights could be invaluable. Specifically, we’re curious about scalability (large units vs. clusters), real-world performance vs. traditional batteries, and challenges in production. Would you be open to a quick discussion? Looking forward to your response!
Hi Rob i couldn't quite get the jist of the activated carbon / acetone mix, can you please tell me what the binder was.
kev
just experiment with it mate - PVA works well but so does SBR and CMC
Robert Murray-Smith many thanks Rob, did you check out that web site that i emailed to you yesterday ?
i did mate and sent a reply about it
Dear sir wonderful work. I just wish camera and focus was Little better. Keep up the good work.
cheers mate
You are a science God... :-)
Love your videos! Please continue! - How about a series on a batteries as well? SUPER BATTERIES! :)
I guess you already did that lol thanks! Solar cell then?
+Paul Deschamps lol - solar cell it is -i agree, i need to do that
Very nice summary to tie things together. Thank you! Experimenting with various sifted carbon grain sizes with various adhesive glue viscosities looks promising. Perhaps even a compressable spongy adhesive to make a variable supercapacitor!
+yougeo i did a video on exactly that mate lol - let me know when you do a video of your experiments i would love to see
Thanks So Much for Sharing!!! my you live long and prosper!! i will attempt to build a few for sure i have all the stuff now, again thanks so much
awesome mate - good luck with it
Can you reply with the link about the 60kF cap you cobbled together?
This is a great video glad i found it. Thanks for the detailed explanation.
i am glad you enjoyed it and thanks for taking the time to post - cheers
15:21 sound of silent satisfaction
nothing wrong with a bit of smugness every now and then mate lol
Hi there! Wonderful video...
So tell me, how would you build a series of Capacitors that can be connected together to have between 48v and 55v that can be used as a storage battery for solar applications?
Would you use this same method?
I need a a bank that is about 30kw +
Any guidance?
totally awesome and inspiring videos!!! keep em coming!! love your tutorials....keep up the great work!!
+Scott S cheers mate
At 4 Farad and 2 mg of material, you would be looking at around 2000 F/g; much higher than your off-the-cuff calculations of 500 - 700 F/g you call out in the video. That just about beats the field far as I can tell.
I did read somewhere that a nickel hydroxide electrode was producing +3000 F/g but given your environment, set-up and simple chemistry, that's downright impressive.
all the info is on the vid for folks to make and verify if they wish mate - there is going to be a difference on specific energy when the final device is put together
In India there are some sellers that scams people. I purchased sodium sulfate and tried to make a supercapacitor and it didn't work at all. I thought I was making some mistake and was hopeless. But after testing the conductivity of the electrolyte I found that it was something else. So I broke a old cell phone battery , cleaned the copper foils and made a super-capacitor with (NaCl) salt water as electrolyte and to my surprise it works quite well. If you don't have any ingredients near you, you can try this out. But it is far from perfect ......
Thank you man, learned and enjoyed a lot
Do you think I should make a science fair with this? I would really enjoy the input!
Robert, do you think making the activated charcoalfrom hard wood charcoal CaCl would work OK? Thanks for the videos.
+Bill Henry well worth a try mate
+Robert Murray-Smith and would one still need to exfoliate that "charcoal/activated graphite" and then hydrothermally process that exfoliated "charcoal to activated carbon" to get GRAPHENE ( or the acetone/h20 combo to reduce to GRAPHENE) or am I still missing or adding a step to the gentlemen's above (charcoal to graphite to GRAPHENE ) process? Thank you and apologies for any redundancy in the query, And SUOER thanks for this share, big big ups Mr. Smith!
+ROMAN GABRIEL I think he just wants to make chatcoal and grind it up mate. If you wanted to graphetise the charcoal you would need to hydrothermally carbonise it with a nickel or iron catalyst then grind it up - without a doubt any processing of the carbon that increases surface area or functionality will lead to a better capacitor - but that is where the experimentation comes in
I remember watching an older video on capacitors and capacitance and them saying it would take a capacitor the size of a skyscraper to hold 1 farrad, that been said i think that was for oldschool capacitor design
Thank you for this video! It is exactly what I have been hoping for in the context making carbon based energy storage. Right now I am puttering with making graphene, and I think I have a couple grams of it, but it's still a little short of being in a usable form. My research in this stuff in forced to take a back seat, right now I am putting together a farm business and that takes most of my mental focus.
I hope to be able to power an electric bicycle with a much larger unit in a couple years, after my LiPoly expires. I think it would be great fun to see one of your large super caps on a bike, that would be a real ground breaking video.
I am curious how great the difference in thickness of active material is between your two systems, and also I wonder what the upper limits are on how thick one can make the active material, and what limiting factors tend to come in to play as one thickens the active material.
+Ray Wharton shame about the delay mate - but good luck with the farm. I was thinking about a bike myself - i might buy one to do just exactly that with lol - I should measure it but it was just a how to make it demo. The limiting factors would be resistance mate - the thicker it gets the greater the distance to the collector plate and the higher the resistance. Attachment will be a factor too and electrolyte penetration
+Robert Murray-Smith lol. I was sitting here pondering the transient punch through V, Q and resistance issues as I saw this post. Downloaded Grafoil engineering guide and thought, quite an engineering trade-space. Permutations offers much room for optimization and plenty of interesting lab work. Amazing what 50 years of quality lab work can yield for things like grafoil.
+BluesDoctor i tend to recalander the foil down to a few microns via a two roll mill - it is amazing stuff and you are quite right there is a ton of work that can be done here
I watch all your video and they are great . Can we work on a higher voltage supercapacitor?
We live in an AC world and that's where the scientific challenge is finding a dielectric that can store high energy yet can withstand ac voltage.
Very thorough explanation. Thank you. Just one small detail I would like to mention. The mike picked up a lot of noise form the foils. Something to keep in mind for future videos. Thanks...
I love you so much. You are an inspiration....
+DrSpooglemon bless your heart mate and cheers
I wish you were my teacher in highschool
It would be interesting to know the self discharge and esr parameters.
great video gonna make some tonight
I really enjoyed your video. Thank you!
thank you mate and thank you for taking the time to post
Personally, for an acidic electrolyte, I'd use gold foil, very low resistance and absurdly high conductivity, and almost nonexistent reactivity
Would cost a lot
Gold leaf ;)
Gold has low overpotential, the working voltage will be less than 1V in that case.
I was hoping to get in touch with you over an idea that would have medical benefit.
So if I am understanding this right your 4 farad capacitor, translated into size comparison to those capacitors you find in a clock radio for example, would have to be the size of the Kitchen roll you have there. (depending on the voltage used)
sounds about right mate
At last you've made a self-contained how-to vid we've been all asking for so long! Still a few questions remain:
1) what material did you use for current collectors on activated carbon capacitor?
2) what electrolyte did you use for both caps? you just said it was some neutral electrolyte.
3) why did you scrap off a layer from graphene oxide capacitor? won't it reduce its capacitance?
+Александр Санников I said in the video mate
1) it's grafoil
2) sodium sulphate
3) to make it 1cm so it would be the same size as a single leaf from a currently available commercial supercapacitor
I did say all of this - maybe i should have made it a bit more obvious - sorry for that
I'm not a native speaker so sometimes it's difficult to figure out what you're saying by ear. Sorry for that.
By question 3) i meant why you removed a layer from graphene oxide electrode with a knife? It looked like you've scratched its surface.
+Александр Санников no worries mate - and like i say i just reduced the active area to 1cm that was all
Thank you again for this great video because it's exactly what so many people wanted for so long.
It's important to realize that despite you always encourage people to experiment on their own, most want to start with some actually well-working design. So instead of reinventing a wheel, it's obvious that we want to improve something already decent instead of reinventing the whole thing from scratch.
+Александр Санников fair comment mate
What is the instrument that u r using to calculate high capacitance ?
Can I make and experiment/research something made of metal wool?