Hi, many thanks for work and demonstration . I am interested with electrolyte material. You used Na2SO4 and K2 SO4 ? Have you tested it with another electrolytes? Thanks.
Dear Cyrex2, many thanks for the upload; very interesting. FYI: On another Experiments (Load / discharge AAA Alcaline, taken Input energy of Mobile Phone) I recorded the ingoing energy to the cell with the EBD-USB: Switched the Monitor on and saved the Data. Via Spreadshied (Excel) I worked out the ingoing mAh and was able to verify with the outgoing energy; by Mobile test I had the capacity from the Battery. It's not a big deal once you made the formulars. On that off course I got the effency of the cell. What do you (and / or other guys) think about?
@@cayrex Sir, I am working on a similar project. My electrode material is having discharge time of 400 seconds maximum at 1.0 A/g mass current density. (1) Should I make supercapacitor device of this material or not?? (2) is it require more discharge time??
Hi! I would be really thankful if anybody or you cayrex could help me with this. At 8:36 you connected the cell but the self-discharge was about 0,004V / sec. so the cell would be after a day all discharged by itself. Why is that? Or is there a way to slow it down? Thank you very much!
This voltage drop was because I disconnect the cell from power supply and the voltage need to settled down to his nominal voltage. I charge the cell with 2.1V and the cell voltage is around 2 to 1.9V.
@@cayrexYes thank you. But when I charge my cell it needs to settle down as you say but the voltage drops about 0,001V / sec. and that's fast you don't see that with regular AA batteries, why is that. Many thankZ
@@SbachyTheFailer Capacitors have much, much, much lower resistance than batteries. As such, more of the power can 'leak' through tiny channels. Batteries actually lose more power over time, but their capacity is thousands and thousands of times higher at worst, thus it takes AGES for it to self-discharge. Lead-acid and NiMH are notorious for rapid self-discharge! But any capacitor, even super/ultra capacitors, will discharge after a few days to months, while most batteries can handle the same time with negligible loss.
thank you for sharing the world that I am currently working on to drive dc motors for free energy generators please help mr. how is your progress...? Warm greetings from Indonesia
Hi, I seriously need help! Mabye anyone who did something with Supercaps can help. I have been working on Supercapacitors for 6 weeks now, with no sucess. I made Supercaps with aluminium Foil sheets coated with activated carbon, Kitchen Tissue Paper as the Separator and Sodium Sulfate solution as the Electrolyte. Problem: the "Supercap" had a Capacity of less than 1mF and discharged itself from 1.5V to 0.2 V in a few seconds, without a load connected!!! What did I do wrong?? I need Help very soon, so pls don't hesitate to help, even if you have only a little hint. And be aware, my English is bot very well. Thanks a lot !!!🙃🙃
Hello! I make supercaps at home. Can you tell me a bit more about your methods? I generally find the hardest thing to be preventing the carbon from permeating the seperator layer and causing a short. Tissue paper isn't really suitable. I'd reccomend qualatative filter paper, it's what I use. Tough stuff and fine enough to prevent penetration. Also I find graphite and (if you can afford it) graphene powder works exponentially better than carbon films. Beyond that, the goal is surface area! As much as possible!
@@janglur Better late than never, thank you for your answer! I am/was doing that for a Research competition in Germany. I used Aluminum foil as collectors. Fine activated Carbon powder mixed with a bit of wood glue(containing PVA binder) as electrode material. Then i coated the Aluminium foil with a paint brush. As a separator I used normal kitchen tissue paper(which is a bit thicker). Since I started using this as separator I never thought, the separator is causing a short, but I will check that/use Filter paper. As electrolyte I mostly used Sodium Sulfate but also tried HCl and NaOH. I also built an Arduino-based Capacitor-meter. Both my cap-meter and my component-tester never measured a capacitance greater than 10uF but a Vloss of nearly 50%. I hope that Info can help you. I paused my Project a few months ago, but I am going to continue my project and maybe even compete with it. How do you build your Supercaps? Thank you very much for your help!
This ona was not so bad with self discharge. The cell voltage drops like by all supercapacitors, but the MnO2 cell was not bad with the self discharge. Maybe you have to high resistance on the electrodes
Nice work! Great description as well. Appreciate your dedication and generosity...
thank you
Hi, many thanks for work and demonstration .
I am interested with electrolyte material. You used Na2SO4 and K2 SO4 ? Have you tested it with another electrolytes? Thanks.
Dear Cyrex2, many thanks for the upload; very interesting.
FYI: On another Experiments (Load / discharge AAA Alcaline, taken Input energy of Mobile Phone) I recorded the ingoing energy to the cell with the EBD-USB: Switched the Monitor on and saved the Data. Via Spreadshied (Excel) I worked out the ingoing mAh and was able to verify with the outgoing energy; by Mobile test I had the capacity from the Battery. It's not a big deal once you made the formulars. On that off course I got the effency of the cell. What do you (and / or other guys) think about?
Ah yeah. Old school battery experiment. I really miss them. 👍
Merci beaucoup pour votre partage! ;)
Je vais essayer d'utiliser ce principe avec ma Bédini.
Nice work sir but what is the ratio for the active material and the carbon
80: 20,.... 8g active material and 2g conductive material
Can we glow LED with this type of supercapacitor??
Yes. Red LED will work really nice
@@cayrex Sir, I am working on a similar project. My electrode material is having discharge time of 400 seconds maximum at 1.0 A/g mass current density.
(1) Should I make supercapacitor device of this material or not??
(2) is it require more discharge time??
Yes, I think that you need to try this supercapacitor.
@@cayrex okay... I will tell you the results..😆 Thank you so much for your time
@@Manpreetkaur-ff1vd No problem. Ok😁
Hi! I would be really thankful if anybody or you cayrex could help me with this. At 8:36 you connected the cell but the self-discharge was about 0,004V / sec. so the cell would be after a day all discharged by itself. Why is that? Or is there a way to slow it down? Thank you very much!
This voltage drop was because I disconnect the cell from power supply and the voltage need to settled down to his nominal voltage. I charge the cell with 2.1V and the cell voltage is around 2 to 1.9V.
@@cayrexYes thank you. But when I charge my cell it needs to settle down as you say but the voltage drops about 0,001V / sec. and that's fast you don't see that with regular AA batteries, why is that. Many thankZ
@@SbachyTheFailer Capacitors have much, much, much lower resistance than batteries. As such, more of the power can 'leak' through tiny channels.
Batteries actually lose more power over time, but their capacity is thousands and thousands of times higher at worst, thus it takes AGES for it to self-discharge. Lead-acid and NiMH are notorious for rapid self-discharge!
But any capacitor, even super/ultra capacitors, will discharge after a few days to months, while most batteries can handle the same time with negligible loss.
Can we use powder in supercapacitor instead of thin film?
Yes
What liquid you used for slurry making?
Water or electrolyte which is later used in the cell
Hi,
What happens when you use your copper backing trick to the current capability?
Hi. You mean if I add copper on the top of graphite foil?
@@cayrex Exactly.
@@jonbigman9723 you will end up with a litle better current
thank you for sharing the world that I am currently working on to drive dc motors for free energy generators please help mr. how is your progress...? Warm greetings from Indonesia
What is seperator?
Toilet paper,... but you can use any type of separator
Hi, I seriously need help!
Mabye anyone who did something with Supercaps can help. I have been working on Supercapacitors for 6 weeks now, with no sucess. I made Supercaps with aluminium Foil sheets coated with activated carbon, Kitchen Tissue Paper as the Separator and Sodium Sulfate solution as the Electrolyte. Problem: the "Supercap" had a Capacity of less than 1mF and discharged itself from 1.5V to 0.2 V in a few seconds, without a load connected!!! What did I do wrong?? I need Help very soon, so pls don't hesitate to help, even if you have only a little hint. And be aware, my English is bot very well. Thanks a lot !!!🙃🙃
Hello! I make supercaps at home. Can you tell me a bit more about your methods?
I generally find the hardest thing to be preventing the carbon from permeating the seperator layer and causing a short. Tissue paper isn't really suitable. I'd reccomend qualatative filter paper, it's what I use. Tough stuff and fine enough to prevent penetration. Also I find graphite and (if you can afford it) graphene powder works exponentially better than carbon films.
Beyond that, the goal is surface area! As much as possible!
@@janglur Better late than never, thank you for your answer! I am/was doing that for a Research competition in Germany. I used Aluminum foil as collectors. Fine activated Carbon powder mixed with a bit of wood glue(containing PVA binder) as electrode material. Then i coated the Aluminium foil with a paint brush. As a separator I used normal kitchen tissue paper(which is a bit thicker).
Since I started using this as separator I never thought, the separator is causing a short, but I will check that/use Filter paper.
As electrolyte I mostly used Sodium Sulfate but also tried HCl and NaOH.
I also built an Arduino-based Capacitor-meter. Both my cap-meter and my component-tester never measured a capacitance greater than 10uF but a Vloss of nearly 50%. I hope that Info can help you. I paused my Project a few months ago, but I am going to continue my project and maybe even compete with it.
How do you build your Supercaps?
Thank you very much for your help!
Like
High voltage
Romania?
@@vrooomvrooom230 da
This types of cap iis very bad due to self discharge
This ona was not so bad with self discharge. The cell voltage drops like by all supercapacitors, but the MnO2 cell was not bad with the self discharge. Maybe you have to high resistance on the electrodes
This has great specs for a standard cap. Thefug you talking about?
@@janglur the fu&$-$ you talking about!
I guess where you blg frm
All caps self discharge.