The Video includes preparation of materials for supercapacitors. The packing and Electrolyte filling inside Glove-Box followed by Electrochemical test such as CV, GCD and EIS. You can Reach me via Instagram account: light.1411
For Symmetric supercapacitors equal mass should be loaded. For Asymmetric SC masses are loaded with differently depending upon type of material. you can read more about asymmetric from this paper "pubs.acs.org/doi/10.1021/acsnano.5b01790"
hi, the SC demonstration is very informative. my doubt is the sample has to be coated both side or one side of the electrode for 3 electrode system as well as 2 electrode system.
What is the purpose of the 3-electrode configuration? Can we do GCD in 3 cell configuration if we don't have a glove box? How can we select the voltage window for the new material?
Superb demonstration..... What is the "mass of the active material" in the 3 electrode configuration? Why you put 0.002 A value for Anodic and Cathodic Current in the GCD measurement? Can we use graphene oxide instead of carbon black for supercapacitor application?
? How does the wet carbon bond to the metal I try using graphene power mix with potassium hydroxide but it’s not banding to the aluminum it’s falling off when I dry it in the oven should I use something sticky like polyurethane
I want to ask, how we select the potential values for chronopotentiometry, if we select the same value which is used in CV measurement, often we can not get fully charge and discharge curve, please explain this one. Thanks and maybe asked some more questions in future.
He explained it in this video. First he selected the stable window of potential and then he started the CP measurements using this (stable) range of potential
My senior take potential 0 to 0.6 for cyclic voltammetry curve. But it did not show full fill cycle. we see half of CV curve. so why he can take 0 to 0.6 potential. 0.5 M sodium sulfate is an electrolyte and activated carbon is electrode material. Please answer my question
Hi, I watched your video, it is awesome and full of information. I have some small doubts. 1. Can we use DMSO instead of NMP to make active material slurry? or you can suggest any other chemical to make the material slurry. 2. Can we drop cast the slurry solution on copper tape or aluminum tape or ITO/FTO? 3. Can we use graphite powder instead of active carbon as it is easily available in the market.
1. you can use any solvent (DMSO, EC, DMC, PC, Methanol, Ethanol, etc.) 2. make sure the adhesion is good 3. The purpose of using AC is high surface area which is required for SCs, Graphite is generally used for batteries.
Hi, I'm currently working on Global Supercapacitor Market Report I have researched some data based on various type and end-use applications for Supercapacitors I would like to discuss some of the points with you, regarding data obtained from the secondary sources as well as annual reports & press releases of major companies operating in Supercapacitors market It would be great if we could have a small chat on the topic
Hi, very helpful demonstration. In three electrode system, may I know the base electrode materials of your working electrode on which you drop casted your material of investigation? Not the coin one, other three square pieces. Thanks
Hello Brother I just have started working on Supercapacitors can you help helpe out in understanding the basics of it. This video is informative to me.
Thankyou for your demonstration, really helpful. But i have questions, for example some paper said sometimes use mV/s and some A/g, what is the different? And can i use nickel foam current collector for h2so4 electrolyte, cause my literature said it safe with SS current collector, so i've plan to change it with nickel foam which have good performance and more corrosion resistance, isn't it? Thanks in advance
yes, I agree on many papers reports in A/g and mV/s, both are correct, One uses GCD's formula, and the other uses CV area to calculate. Both are accepted and correct. For Current Collector (CC), you can use Ni foam, since you clean it first with HCl, it must be corrosion-free. But it is not a good practice for SCs bcoz most of the contribution comes from CC
@@arvindkumarmishra6993 because the conductivity of NF its self is very high. So it is very less chances to measure the accurate conductivity of fabricated sample.
you must check whether your current collector is reacting (corrosion/oxidation) with electrolyte or not? In case it reacts you must find a suitable electrode. one case i have experienced is with copper, performance of my device degraded coz oxide layer was formed after acid etching, you must take care for such situation.
you can use according to your need, here we have chosen circular electrodes because we have customised our ocean Cell (HS flat cell) in circular shape. Generally, the final device is packed in coin cell casing, which is also circular, so the circular shape here is natural choice.
@@light-xi8wr plz can you give your email id....m working on asymmetrical symmetrical SC ......can u plz tell me if I use rectangular shaped electrodes ......plz give your email id...
