Great video, but I just have a few questions: 1. Are you using deionized or distilled water? 2. What are you using as a seperator in your supercapacitors? 3. If I want to create an active material out of only activated carbon, would you recommend doing anything differently? 4. Could you please list out the materials you used and the amounts of each one? (I was a little difficult to follow, hence my first question) 5. Would a supercapacitor using this active material with a binder of sodium silicate and an electrolyte like Aqueous Na2SO4 suffer in any ways if I were to use copper electrodes and a PLA housing? Thank you so much for this video, it was very helpful!
@joyofelectronics978211 ай бұрын
1. You can use either deionized or distilled water. 2. If you use only activated carbon the internal resistance of the cap will increase. 3. Sodium silicate is not a good binder for sodium sulphate, you should use some waterproofing materials or acrylic paint
@shreyrohilla788310 ай бұрын
@@joyofelectronics9782 So which electrolyte is best for sodium silicate?
@joyofelectronics978210 ай бұрын
@@shreyrohilla7883 sulphuric acid
@shreyrohilla788310 ай бұрын
@@joyofelectronics9782 Ah. Do you know what concentration is best?
@stephenmosinki991011 ай бұрын
thanks, great. I will try it and get back to you
@joyofelectronics978211 ай бұрын
Cool 👍
@muhammadalvan84269 ай бұрын
hello sir i wannas ask, can i skip using sodium silicate? and i see ur another video about supercapacitor. for active material you use sonicator before adding DI water and glue but u didnt use sonicator here. thank you
@joyofelectronics97829 ай бұрын
Hello brother. You can use another binder instead of sodium silicate (PVA or gum Arabic etc.) the purpose of using sonicator was make finer the graphite powder. Here the soap do the same thing. Namely you can use sonicator as well.
@muhammadalvan84269 ай бұрын
thanks sir@@joyofelectronics9782
@elainedarbyshir185222 күн бұрын
Can you use bondcrete is water-based but is also water proof. That you can mix with concrete to water proof it smells very much like pva glue i water it down to water.proof my bimany on my yatch it stays flexible and I water it down to 50/50 bondcrete and water drying time quick depending on temp and i am sure you could water it down further if desired
@ozgurkaygisiz156211 ай бұрын
Yine şahane bir video ellerine sağlık dostum. Bunun direnç ölçümünü yapabildinmi?
@joyofelectronics978211 ай бұрын
Eyvallah kardeşim. Bir milim kalınlıkta 100 ohm civarında
@realflow1007 ай бұрын
How much? What percentages? I don't know how much to use for water and the pva adhesive option for a metal powder electrode active material paste/slurry. Should I just try a 10% solution of pva to water?
@joyofelectronics97827 ай бұрын
10% is fine
@realflow1007 ай бұрын
@@joyofelectronics9782Ok So 1 part PVA 9 part water. add gradually to active material. stir and mix until desired spreadable consistency is reached. then let it dry and cure overnight? That should be fine? I am trying homemade ground graphite powder on an aluminum current collector. This won't be a super capacitor. but it should be able to act as an electrical conductor with high surface area in a zinc battery project. Also specifically I am using polyvinyl acetate for my adhesive binder option.
@realflow1007 ай бұрын
@@joyofelectronics9782 just finished making it and put it together. small test cell clamped between some pieces of plastic with a thin couple layers of coffee paper filter between as the separator. However There's a problem. It works but the capacity is miniscule. only powering a small weak motor for a few short seconds before it's completely discharged. I'm not sure if i'm doing something wrong? it behaves more as a small super capacitor than a battery. The graphite only seems to be briefly storing a charge.
@HistoricallyAccurate24711 ай бұрын
Excellent, I might try it
@joyofelectronics978211 ай бұрын
Thanks
@FactsOfLife11 ай бұрын
Faydalı bir video daha. Teşekkürler. 🎉
@joyofelectronics978211 ай бұрын
Teşekkür ederim kardeşim
@FactsOfLife11 ай бұрын
Grafiti nereden alabilirim, bir önerin var mı? Marka site vs gibi.
@FactsOfLife11 ай бұрын
@@joyofelectronics9782 Grafit için marka veya satınalma yeri önerisi verebilir misiniz? Online olarak nereden alabilirim?
@joyofelectronics978211 ай бұрын
@@FactsOfLife grafit tozu satışı diye yaz google a çıkıyor bir çok site. Trendyol, çiçeksepetinde bile var. Alırken %99 saflıkta olmasına ve çok küçük parçalı (ultrafine) olmasına dikkat et sadece
@zakiosman875710 ай бұрын
تحياتى لك .... هل ممكن تصف لى غراء سائل يتصلب بعد فترة يكون منفذ للمغناطيسية و عازل كهربيا من فضلك
@joyofelectronics978210 ай бұрын
I have no idea about that fella.
@zakiosman875710 ай бұрын
@@joyofelectronics9782 اشكرك
@techmania7603 ай бұрын
how to calculate mass loading of active material on glassy carbon if we use 2mm glassy carbon and the material which is 5micro litre taken from 1000 ul of solution having 10 microlitere of nafion, 240 micro litre isopropyl alcohol and 750 micro litr of distilled water what will be the mass loading value that we have to use in capacitance formula to calculate specific capacitance by CV and GCD
@RezaAhmadi-di5fg11 ай бұрын
سلام وادب واحترام اگر امکان دارد زیر نویس فارسی بگین ممنون
@joyofelectronics978211 ай бұрын
Sure👍
@gsestream11 ай бұрын
try also sulfuric acid on wood, and heat blasting wood to carbon
@gsestream11 ай бұрын
also EDM graphite rods/plates work fine, have great conductivity
@gsestream11 ай бұрын
best might be sulfuric acid + heat, possibly partly burning the wood, or torching it
@shreyrohilla788310 ай бұрын
what does this do?
@gsestream10 ай бұрын
turns stuff into carbon, try the flame sulfuric acid sugar experiment, but with wood sheet@@shreyrohilla7883