Finally a Capacitor that can REPLACE a Battery?!

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  • Опубликовано: 23 дек 2024

Комментарии • 926

  • @nhand42
    @nhand42 Год назад +1702

    That looks like a LiFePO4 pouch cell and they don't always catch fire when punctured. If they do smoke it's less violent than LiPo.

    • @greatscottlab
      @greatscottlab  Год назад +262

      Hmmmm possible.

    • @Youtube_kontot
      @Youtube_kontot Год назад +124

      Lifepo4 is only 3.65 volts so no its not a lifepo4.

    • @bjn714
      @bjn714 Год назад +196

      This is exactly what they look like internally, so I'd tend to agree as well. You'll have carbonized copper sheets alternating with aluminum sheets coated with the LiFePO4 dope, separated by the layers of barrier material.
      Put one of the aluminum sheets into a flame and see if it burns red, indicating the presence of lithium to confirm.

    • @onegreenev
      @onegreenev Год назад +125

      @@greatscottlab If I recall in the early days of the LiFePO4 cells the max charge was briefly 4.6 volts then it was downgraded to 4.2 then to be even safer 3.65 and in some cases they recommend just 3.5 volts for the max charging voltage. LiFePO4 cells act just like this when punctured. I love my LiFePO4 cells. It is a battery not capacitor.

    • @ZeFoxii
      @ZeFoxii Год назад +28

      @@greatscottlabhey try @bjn724 ‘s suggestion to put the aluminum side in fire and see if it changed colors to test for lithium.

  • @KUBA64official
    @KUBA64official Год назад +580

    In my opinion the best way to find out if you deal with a battery or a capacitor is to discharge it to zero volts, let it shorted for few days and try to recharge it. Capacitor should survive this test with no problem and no capacity loss at all.
    Battery would be not able to give You the original capacity but more likely You wouldn’t be able to charge it anymore.

    • @erikdenhouter
      @erikdenhouter Год назад +43

      Not necessary so.... I did some tests with NiMh (of which that same is said). I deeply discharged them by applying a resistor of 1KΩ (~1mA) to them, and leave them like that for a year. After that I gave 5x a refresh charge cycle with a low current (0.2x capacity), and their capacity was still above 95% of their original, not very different of just store then charged and recharge them. I repeated that with a few periodes of a half year, same results. It could be that the resistor kept the chemistry polarized or so.

    • @Ether_Void
      @Ether_Void Год назад +16

      This is afaik also true for lithium hybrid capacitors. So it doesn't completely rule out a capacitor type cell.

    • @KUBA64official
      @KUBA64official Год назад +13

      @@erikdenhouter thanks for Your experience. You reminded me of my experience with Li-ion battery. Once I tried to repair my collegue’s scooter battery. There was one palalell row of cells at zero volts. I was still able to recharge them to the full voltage. Even the capacitance did not drop significantly. The problem was different. After this manual ballancing they were very leaky. So after few weeks they self-discharged to zero again.

    • @erikdenhouter
      @erikdenhouter Год назад +3

      @@KUBA64official Thanks, I will try to use these cells normally after the next periode of abuse has ended 😜 You could be right that they will turn in something unreliable, that is not checked fully yet.

    • @NinoJoel
      @NinoJoel Год назад +4

      ​@@KUBA64officialthose cells where protected and had a internal low voltage shit off.
      If you discharge a lithium ion cell to zero you won't change that ever again to full voltage

  • @erikdenhouter
    @erikdenhouter Год назад +674

    You forgot one downside of supercaps: self discharge is high, can be in the order of half its charge lost in 1000 hours, and is also a function of temperature.

    • @74357175
      @74357175 Год назад +47

      That seems like a pretty serious downside, especially since one of the reasons to store a lot of energy is to be able to release it over a long time

    • @NinoJoel
      @NinoJoel Год назад +37

      That would be no problem for most uses thought

    • @erikdenhouter
      @erikdenhouter Год назад +14

      @@NinoJoel Of course, such property will allow for certain applications, it wil find its own ground to be usefull in.

    • @74357175
      @74357175 Год назад +7

      @@NinoJoel I think you're mostly right, and I heard it can be used in cars and other high power situations. HOWEVER, this is an electronics channel, where fast charge and discharge of large amounts of energy is unlikely. I would argue slow discharge is more common in this particular niche

    • @simonlinser8286
      @simonlinser8286 Год назад +27

      A thousand hours? That's like more than a month... who cares? For most worthwhile applications you'd be charging a lot more than once every couple months, and you have to keep lithium batteries charged every month or two and keep them stored at below 100% charge... so it wouldn't be more of a hassle than those batteries, plus a supercap would charge super fast so there's no concern if it discharges itself

  • @foogod4237
    @foogod4237 Год назад +686

    To be honest, the biggest red flag for me immediately that this was almost certainly not a capacitor is that it comes in a flexible plastic pouch form factor. Batteries are chemical devices, so their actual shape, pressure, etc isn't that critical to their functioning, but capacitors are physical devices where each physical dimension actually matters a huge amount. The characteristics of capacitors are highly dependent on the exact separation of the layers from each other, so any squeezing or bending of the capacitor internals will likely dramatically reduce its capacitance, which would be really bad if anyone were actually trying to, you know, use it in a real circuit for anything predictable.
    There is a reason that all _real_ capacitors come with hard exteriors. Nobody would ever make a capacitor like this, particularly an expensive, state-of-the-art supercap, which could be rendered basically useless just by squeezing it with your fingers in the wrong way.

    • @hmpeter
      @hmpeter Год назад +35

      While I get your point, you are not quite correct there. There are double layer capacitors made that way. AVX PrizmaCap series comes to mind. But they are certainly not the norm.

    • @gillssunday
      @gillssunday Год назад +7

      Pouch cells are very popular when it comes to packaging devices. Indeed they are the real standard see Amprius, Sion Power, Lyten etc..

    • @MoreCharactersThanNeeded
      @MoreCharactersThanNeeded Год назад +4

      @@hmpeter We are not dealing with the norm here though, so you certainly have a valid point.

    • @satibel
      @satibel Год назад +2

      Usually supercapacitors do both electrostatic and electrochemical storage for their increased capacity.

    • @roberthercules3159
      @roberthercules3159 Год назад +7

      ​​@@satibelthat's hybrid caps... supercaps are differentiated from "normal" caps by the electrolyte which forms EDL (ellectrolyte-double-layer) physical static electrical syorage against the charged capacitor plates, thus increasing energy storage WITHOUT any chemical reactions.
      (Brief version: supercaps are NOT electrochemical, the electrolyte just adds "virtual" extra plates, or extra surface area to the plates)

  • @steadyfield
    @steadyfield Год назад +103

    This is actually a Gen 3 ("MpCO") lithium ion cell from Microvast. You can find the "02LCC" prefix from the cell, which indicates that it is a Gen3 MpCO cell from Microvast. The good news is that while it is a lithium ion cell, it can last 4000-7000 cycles according to the datasheet.

    • @fraaggl
      @fraaggl Год назад +35

      the bad news is that the one on the video won't be able to complete those cycles...

    • @jonclement
      @jonclement Год назад

      Huh, Microvast looses 200 million contract in US after suspicious ties to China. These batts are now showing up on russian e-bikes.

    • @TravisTellsTruths
      @TravisTellsTruths Год назад

      Great info

    • @beanapprentice1687
      @beanapprentice1687 Год назад +12

      So… it actually is a legit technology, but it got mislabelled by a nefarious eBay company to scam people.

    • @phobos1963
      @phobos1963 11 месяцев назад

      @@beanapprentice1687Still has nothing to do with graphene, and I wonder if that company who appears to sell from chemical tanks to super caps is part of the scam or not

  • @vincentguttmann2231
    @vincentguttmann2231 Год назад +229

    Time to test if there's Lithium in the device.
    Maybe do a flame test with the electrolyte? Lithium will emit a very red light

    • @greatscottlab
      @greatscottlab  Год назад +153

      Oh boy. I will see what I can do.

    • @nimoy007
      @nimoy007 Год назад +41

      ​@@greatscottlab I'd be happy with even just a RUclips short of this test!

    • @gdj6298
      @gdj6298 Год назад +8

      @@greatscottlab That's the spirit !

    • @TheWeepingCorpse
      @TheWeepingCorpse Год назад +2

      Yes please try this, I'm so excited.

    • @stuckathome5896
      @stuckathome5896 Год назад +2

      Just put it in water (carefully!)

  • @TheFlatronify
    @TheFlatronify Год назад +112

    Have you tried contacting the manufacturer for comment? A follow up would be really interesting because whatever chemistry this was it looks super safe which is interesting!

  • @MilesProwerTailsFox
    @MilesProwerTailsFox Год назад +138

    Hi, after seeing how it looks on the inside I can tell you Wich kind of battery is this
    Yes it is a battery, is a carbon-lithium-copper battery
    They don't like to explode and can be safely dismantled even with full charge, I had chewed on one at some point when I was kiddo
    It's one of the oldest kind of lithium batteries so yes you got scammed probably have to call some authoritie

    • @greatscottlab
      @greatscottlab  Год назад +34

      Thanks for the feedback :-)

    • @stark_energy
      @stark_energy Год назад +29

      Yes most likely, because it does not fit characteristic of LiFePo4 and at 10:14 it is clearly visible that there is a Copper (Cu) layer visible.

    • @Jbrimbelibap
      @Jbrimbelibap Год назад +1

      gotta pin that

  • @madcow3417
    @madcow3417 Год назад +450

    At no point did I think that was actually a capacitor, but I still learned a lot in this video. Thanks!

    • @greatscottlab
      @greatscottlab  Год назад +44

      It is something ;-)

    • @javierolavarria
      @javierolavarria Год назад +38

      @@greatscottlab Mysteriously it is no longer available for sale on their website and is only available as a studio prototype.

    • @England91
      @England91 Год назад +9

      ​@@javierolavarriathat's sus

    • @ashleyarundel3134
      @ashleyarundel3134 Год назад

      Same :)

    • @kryotek7126
      @kryotek7126 Год назад +5

      ​@@javierolavarria"Campione fornito solo per valutazione e test" means "Unit provided only for evaluation and testing". It probably was never meant to be sold directly, in fact this was bought on eBay. As for the "Super Capacitor" label, that probably is a straight up lie

  • @MD_Builds
    @MD_Builds Год назад +211

    it might be one of the new stable lipo that ive seen around... Basically able to handle being cut and damaged and continue to work. But yes not a super cap

    • @greatscottlab
      @greatscottlab  Год назад +37

      Where can I find such Lipos? Link please?

    • @MD_Builds
      @MD_Builds Год назад +19

      @@greatscottlab Ive only seen a few youtube vids on them over the last few years. One was designed by the guy who invented lipo. Honestly right now I dont know the title of it... But in the video they were literally cutting the active pack with scissors. And it just kept working. Only thing in the end they were doing is reducing capacity.

    • @mars5train601
      @mars5train601 Год назад +11

      ​​@@greatscottlabhe mentioned battery sounds like a lithium ceramic battery or lcb. It looks like you reviewed these around 4 years back. Prologium sells these as FLCBs, flexible lcb

    • @marcbarbier5646
      @marcbarbier5646 Год назад +4

      @@greatscottlab maybe he was talking about your lithium ceramic video.

    • @drelectronics13
      @drelectronics13 Год назад

      @@greatscottlab maybe u will find more info on videos with caption nail penitrating lab

  • @Kinetic_CGI
    @Kinetic_CGI Год назад +56

    LTO (Lithium titanate oxide) Batteries are worth checking out as well, may not meet the voltage requirements, but still stable and resistant to being punctured

  • @Aimmad19
    @Aimmad19 Год назад +31

    I'm not a battery expert myself but I have dismantled many of them from my early teenage years. Seeing copper in it makes me certain it's some sort of li-ion battery not a super capacitor. Each one I opened had copper sheets in

    • @blacknoir2404
      @blacknoir2404 Год назад +3

      same and that weird af lithium smell

    • @safetyinstructor
      @safetyinstructor Год назад +1

      LiFePO4?

    • @bottlekruiser
      @bottlekruiser Год назад +1

      did any supercaps you've opened have copper sheets in them tho?

    • @Aimmad19
      @Aimmad19 Год назад

      @@safetyinstructor Mostly Li-ion 18650

    • @Aimmad19
      @Aimmad19 Год назад +2

      @@bottlekruiser No! From my experience(the ones I opened) they all had some sort of carbon electrode, both anode and cathode. Don't exactly know what it is for sure though

  • @choppergirl
    @choppergirl Год назад +54

    Seems like the main advantage would be you could charge and discharge capacitors millions of times... at elast unless corrosion or they dried out or some other time based chemical effect degraded their performance.

    • @greatscottlab
      @greatscottlab  Год назад +21

      Yep. That is pretty much the best advantage. After that follows the big currents it can handle and then safety aspects.

    • @BH4x0r
      @BH4x0r Год назад +1

      ​@@greatscottlabIf they can make ceramic caps as great as regular super caps one day it might not really get worse by time

    • @EuphoricDan
      @EuphoricDan Год назад

      @@greatscottlab We have some LiPos that can handle enormous currents now though with pretty high energy density. I've got some Spektrum batteries that can do 1.6 kiloamps and they only weigh a kilogram.
      I'm pretty disappointed in capacitor tech for high current applications compared to these modern high-current LiPos.

    • @KillianSworne
      @KillianSworne Год назад

      @@greatscottlab i dont care what it is does it hold a charge and wont explode. thats whats important. call it what you want i need to see it tested in a ebike please

  • @charlcilliers8964
    @charlcilliers8964 Год назад +1

    These are not LiFePO4 cells. They are in fact a form of hybrid supercapacitor, with the discharge voltage curve closer to that of a lithium-based cell than a supercapacitor.
    - 2.7V or 4.2V nominal.
    - pouch or cylinder form factor
    - can be tweaked by the manufacturer for energy density vs charge/discharge rate
    - contains a very small amount of lithium, not enough to be hazardous.
    Some benefits over lithium-based cells:
    - many more charge/discharge cycles (up to 100k in some cells vs 1k-4k) before capacity is reduced and therefore has a much longer operational life.
    - 100% depth of discharge vs 80%
    - Faster charging/discharging
    - higher thermal operation range before degradation.
    - No thermal runaway and won’t explode or catch on fire if punctured or in high temperature (also making them safe for air transport)
    - higher efficiency
    Of course even at max energy density (lowest charge/discharge rate), the energy density is still lower than that of most Li-based cells, make them most suitable for stationary applications where weight and volume is less of an issue.

  • @Darkshadow799
    @Darkshadow799 Год назад +58

    Probably the discharge curve of a supercapacitor has also to be considered a disadvantage. As shown in the video, the voltage changes a lot during the discharge so, in order to exploit all the stored energy, the devices connected have to work in a really wide voltage range and this is not easy to manage. In my experience, a common solution is to use only a part of the stored energy, thus giving up some capacity. Anyway, as always a really interesting video!

    • @valtersvasilis
      @valtersvasilis Год назад +1

      Maybe you would need several contactors for each module in battery pack (connected in series) in order to maintain steady pack voltage. 🤔

    • @teardowndan5364
      @teardowndan5364 Год назад +3

      Not difficult at all: start from a higher pack voltage and use a buck regulator. You already need to do this with 3.7V Li-ion to power 1.2-3.3V loads anyway. For single supercaps, a SEPIC converter can do both buck and boost as needed.

    • @robonator2945
      @robonator2945 Год назад

      ​@@valtersvasilis that actually might be a good method, at least in combination with a more proper regulator. If you could reliably keep the voltage within +/- a volt or two, then you could get a really efficient regulator that pins that down to something exact. (say 3.3v for a microcontroller)
      With that said, you'd need a smart-switching circuit, otherwise when it's fully charged you'd get WAAAAAY above the desired voltage. For small devices you'd likely only need some mosfets or something, but for an EV or something you'd probably need full fledged contactors that can rewire the battery pack from series to parallel on-the-fly to keep a somewhat consistent voltage which can then be pinned down by a regulator.

  • @ClokworkGremlin
    @ClokworkGremlin Год назад +4

    The capacitor explanation in this episode is pretty good, but the interesting thing about electrolytic capacitors (including most supercapacitors) is that one of the electrodes of the capacitor is actually the *liquid* (usually a saline solution), and the dielectric (polarizable insulator) is actually an *oxide layer formed between the metal strip and the liquid electrode when a charge is applied.*
    This is why electrolytic capacitors are polarized: If you apply the charge in the wrong direction, the oxide layer breaks down, causing a short which prevents it from re-forming.
    Most electrolytic supercapacitors are just regular electrolytic capacitors, but with *ludicrous* amounts of surface area across the dielectric layer, which corresponds to ludicrous amounts of capacitance.

  • @wrrr10g53
    @wrrr10g53 Год назад +5

    Nice one GS, thanks for exploring this for all of us.
    Practical note: you might want to wear nitril gloves over your working (PU dipped) gloves, this gives the same safety, but you keep your working gloves clean of hazardous materials.

  • @electricalychalanged4911
    @electricalychalanged4911 Год назад +3

    I saw some copper in the supposed super cap. That is typical for a lithium ion battery.That is a definite indicator for a batter. For a cap you would use aluminum. Way cheaper

  • @rubenschaer960
    @rubenschaer960 Год назад +6

    It has the discharge curve of a NMC) (specifically LiNi1/3Mn1/3Co1/3O2), which, to be fair is one of the safer options for NMC, but it should still combust afaik. The fact that it marries the mechanical resilience of LFP with the discharge curve of NMC is interesting to me. If this is a new lithium based technology, it would be fun to learn more about it's other electrical properties, operational temperature, relative capacity degradation over 1000 cycles etc.

  • @ElbadriEgyption
    @ElbadriEgyption Год назад +1

    Hi, i see that it's italian. I live in Italy and work in the electronics market as well. I try to get you in touch with someone from Asitaly to get some clarification. Keep in mind that they actually only send samples for testing and not actually selling these so probably ebay was a scam ?!

  • @limehuzki
    @limehuzki Год назад +3

    The best up side though
    It can store power for years without discharging
    10:42
    And if it doesn't explode despite physical damage that is amazing!
    Literally even if this isn't graphine this is a major improvement in safety!

  • @rosskappa5410
    @rosskappa5410 Год назад +3

    I think that you should've mentioned in the video the self-discharhing rate of the supercapacitors which I think is one of the biggest disadvantage of supercaps. While a typical lithium battery will self-discharge %3 per year, supercapacitor self-discharges %3 charge in the matter of seconds and minutes. So for the ones thinking that supercaps could be a better choice than batteries for their low-power applications after this video, think again.

    • @jakubrogacz6829
      @jakubrogacz6829 Год назад

      for phones and cars ? Its cycles that matter

  • @samhorowitz7593
    @samhorowitz7593 Год назад +141

    We need better super capacitors! I really hope new technology becomes more affordable soon!

    • @greatscottlab
      @greatscottlab  Год назад +19

      I hope so too :-)

    • @lasskinn474
      @lasskinn474 Год назад +13

      it's really hard to beat chemical reactions for energy density.

    • @univera1111
      @univera1111 Год назад

      ​@@manitoba-op4jxwhat's sla

    • @nacho71ar
      @nacho71ar Год назад +1

      @@univera1111 Sealed Lead Acid battery

    • @Solron78
      @Solron78 Год назад

      @@univera1111 SLA = Sealed Lead Acid Battery

  • @fedeyoutub
    @fedeyoutub Год назад +1

    I'm Italian, I've been looking for a safe lipo/lithium battery for some time. and where can i find it? from a foreign youtuber :-), as soon as I have some time I call this company and ask for some information, if you want I can tell them about your video, maybe they will write to you, nice video as always, thanks for updating me on this new technology.

  • @AgastyaXV
    @AgastyaXV Год назад +30

    Hey there!
    I was wondering if you would make an AC UPS project.
    The only ones on youtube are just battery banks but dont support the "uninterruptable" charactertistic that UPS needs.
    Great video like usual, would love to see more of the aliexpress videos and hope you find my suggestion valid enough to make a video
    Thanks!
    edit: would be great if you could also talk about line interactive ups, upsides and downsides compared to a standby one and mention what would be the upsides to the line interactive one. As line interactive is going to use the battery far more, and going to be more expensive.
    A standby ups would pair up nicely with your garage build and you could make a line interactive ups for housing more voltage sensitive electronics like pc/oscilloscope etc

    • @kwestionariusz1
      @kwestionariusz1 Год назад

      Nice safe capacitor

    • @greatscottlab
      @greatscottlab  Год назад +29

      I can put it on my to do list :-)

    • @AgastyaXV
      @AgastyaXV Год назад

      @@greatscottlab :D

    • @RayRayfrfr
      @RayRayfrfr Год назад +2

      @@greatscottlabNice! I would love to see a project like that from you

    • @vincentguttmann2231
      @vincentguttmann2231 Год назад +2

      The easiest solution for smaller devices is to keep a lead acid battery topped up from AC power (since LiIon doesn't handle trickle charging well), and put an inverter on it. That way, you're isolated from the grid, and when AC power fails, the battery just doesn't get charged any more.

  • @mohamedashraf7692
    @mohamedashraf7692 Год назад +108

    Looks like a battery to me, especially the internal structure. I'm not a battery expert either, but I can see it has multiple sheets for the electrodes, leads, pads and so on...
    Edit:
    Yes, a capacitor would need such layers as well, but as @ladislavseps4801 pointed, it would need 2 layers for anode and cathode in addition to a separator and the electrolyte solution.

    • @greatscottlab
      @greatscottlab  Год назад +25

      Sure, but a capacitor would require such layers as well.

    • @youssubernfissi5559
      @youssubernfissi5559 Год назад +3

      @@greatscottlab I believe a cap has 2 sheets that wrap around the available space while batteries have multiple sheets, the shape of it also in my opinion is a give a way, it is not suitable for caps,

    • @ladislavseps4801
      @ladislavseps4801 Год назад +4

      I don't know much about super or ultra capacitors. But normal eletrolitic capacitor have solid anode and cathode is the electrolite itself (and chemistry between them makes the isolator for storing the charge) . The green supercap seemed to match this: eletrolite + plastic separator + 1 other material. Accumulators should have 2 distinct solid electrodes + electrolite + separator.

    • @pn8902
      @pn8902 Год назад +1

      @@greatscottlab The capacitor also has the same structure however there is an electrolyte, so was the supercap wet inside or not? Also maybe compare the grey material from the capacitor and the supercap, are there any chemical reactions to show if its lithium or not? I think lithium reacts when put in water and graphene would not

    • @TheNickmista
      @TheNickmista Год назад

      @@greatscottlab maybe I'm wrong but I was under the impression the defining difference between a capacitor and a battery is that a capacitor only is one layer whereas a battery is multiple? (one cell vs multiple cells?) Otherwise they're both similar in their construction and physical mode of operation I thought...
      Edit: having looked it up it seems unclear. It seems like generally batteries involve an electrochemical redox reaction whereas capacitors usually do not. I'm not sure if that's always the case though such as with electrolytic capacitors. Whether a single cell battery is the same as an electrolytic capacitor?
      Idk someone more qualified than me should chime in haha.

  • @robertnicholls7868
    @robertnicholls7868 9 месяцев назад +1

    I have done extensive testing on this 21000F cell and the 4.2V 4000F radial one of which I built a 4s 6p battery pack that delivered 25Ah with a form factor of 100x150 .... These are indeed graphene capacitors and deliver as advertised from -40 to +70deg C. SO much miss information in the comments section.

  • @Hyo9000
    @Hyo9000 Год назад +16

    Here's what I would do.
    1) Separate the constituent materials as well as I can.
    2) Dry them.
    3) Do a flame test on each of them.
    3.BONUS) Record the flame emission with a spectroscope
    The colors you see (or emission lines, if using a spectroscope) should tell you fairly accurately what the materials being used here are.
    Lithium has a characteristic pale red flame. I don't know the flame colors for Fe and P, but they are available online.
    If you just see lithium, maybe it's a hybrid capacitor. But I'd bet there's no reason for there to be Fe and P if it isn't a battery.
    If you see none of those, then perhaps it's indeed a capacitor.

    • @mernok2001
      @mernok2001 Год назад

      Instead of a flame test, you can also use it as electrodes. An electric arc will give more spectral line than a flame.

  • @tameraburouk1352
    @tameraburouk1352 Год назад +1

    I have been working with Supercapacitors for years, and I have publications on that. The discharge curve for supercapacitor can tell so many things and carry a huge amount of data. From the discharge curve you showed, I can tell you this is impossible to be a supercapacitor. I have found similar product in several online markets they just changed the stickers. Graphene supercapacitor will add around 70% of capacitance on same volume unit. But I believe there will be so much development in the next few years.

  • @JamesBailey123
    @JamesBailey123 Год назад +3

    suggest setting part of battery on fire - red flames indicate perhaps lithium?

    • @greatscottlab
      @greatscottlab  Год назад +2

      Oh boy. That does not sound too safe though.

    • @JaenEngineering
      @JaenEngineering Год назад +3

      ​@@greatscottlabI'd argue it's no less safe than testing the robustness of a LiPo cell using a hammer and nails....

    • @2darki
      @2darki Год назад

      @@greatscottlab you can take some of the layers and set them on fire.

    • @carborane818
      @carborane818 Год назад

      ​@@greatscottlab I do not think you need to burn that much to test, snipping off a corner should be enough to change the flame's color. And of course you should use a respirator just in case.

    • @gdj6298
      @gdj6298 Год назад

      @@2darki I just misread that as "Take some of the lawyers and set them on fire........."

  • @RickyDivjakovski
    @RickyDivjakovski Год назад +2

    Capacitors rely heavily on their structure to operate efficiently/correctly, this is generally why they are cased in a strong shell, the flexible alloy case is a strong indication this is indeed a battery of some sort (Not sure what battery tho)

  • @IlkkaSavilampi
    @IlkkaSavilampi Год назад +32

    You should have tried to drain it to zero volts and then tried to recharge it. If it keeps energy inside itself after that and there is no pcb+battery controller it's a super capacitor.

    • @greatscottlab
      @greatscottlab  Год назад +13

      I feel like LiPos can do that too up to a certain limit. No?

    • @bundles1978
      @bundles1978 Год назад +7

      lipo's dont always come with circuitry. most DIY drone batteries dont have any kind of controller/protection circuit.

    • @reneonier
      @reneonier Год назад +11

      @@greatscottlab Yes, to a certain limit. But if after 5-6 cycles of 100%->0% it retains its capacity, it's definitely not a lipo.

    • @Kalvinjj
      @Kalvinjj Год назад

      I recall that hybrid supercaps (the lithium based ones specially) didn't play well with full drain, they were even sold already pre-charged like batteries didn't they?
      Like the one Scott showed in the video with the plastic shell keeping the terminals from shorting.

    • @volvo09
      @volvo09 Год назад +2

      I had a fan on my workbench that I put an 18650 holder on.
      I would forget to shut it off and leave it on ALL the time and drain the batteries to 0v. I must have done it 10x on one particular pack and when I capacity tested it again a year later it didn't lose much capacity... I was shocked.
      It was a 1/2 worn out cell from a laptop pack that only had about 1200mah capacity, and after all that abuse it was at about 1000mah a year later.
      I used it so much that I wore the brushes out in the fan motor and that's when I had to retire it.

  • @bobedwards8896
    @bobedwards8896 Год назад +2

    i remember seeing a video about a battery that can be cut or shorted and and still work... dont remember much, maybe it was ionic materials? using a polymer electrolyte

  • @TonyHammitt
    @TonyHammitt Год назад +4

    Maybe it has a charge/discharge control circuit mimicking LiPo to make it easier to integrate where LiPo would have been used? It certainly didn't explode like a LiPo, or look like one on the inside, and you gave it a lot of "mechanical stress" that would definitely have caused a LiPo to catch fire. I think it really was a capacitor.

  • @matteofabbri6633
    @matteofabbri6633 Год назад +1

    By the way on the capacitor there is written in italian: "Free sample for evaluation and test" it was not supposed to be sold on ebay

  • @Thoughtflux
    @Thoughtflux Год назад +1

    Are graphene super capacitors any better than regular capacitors for eliminating electrical ripple & noise?

  • @BH4x0r
    @BH4x0r Год назад +11

    this might just be a LiPo with a graphene layer/graphene ball structure like Samsung and some RC car batteries (Turnigy) have, but it's certainly interesting it didn't react violent at all so i aswell don't know what this thing actually is
    maybe something based on LiFePo4 with a higher max voltage?

    • @greatscottlab
      @greatscottlab  Год назад +3

      Thanks for the feedback. It is a mystery......

  • @vladimirsamas3097
    @vladimirsamas3097 Год назад

    Hello, it is for 100% a simple nmc Li-Po pouch cells the internal look exactly like a li-po, another think if a li-po is discharged it doesn't catch fire...
    So it is a simple li-po pouch cells ..... With a new stickers...
    Great video

  • @Veritas-invenitur
    @Veritas-invenitur Год назад +8

    I’m really glad that you verified that this was not a hybrid capacitor. In the future, if you want an additional test you can run to differentiate hybrid caps from batteries, you can measure the internal resistance.

  • @davidebic
    @davidebic Год назад +1

    Having a look at their site I think you just got the only thing that isn't a super capacitor. The other two kinds which they offered (30KF and 100KF) actually looked way more genuine, with peak currents of 200A and 300A and just 5-10 minutes of charge times.

    • @davidebic
      @davidebic Год назад

      PS: I sent them an email, I'll see if they reply. In case I'll tell you all.

    • @davidebic
      @davidebic Год назад +1

      Although I made also a seperate comment, I'll copy the reply here too.
      Ok so I wrote them an email inquiring about their supercapacitors. Here's a translation of the reply:
      Good morning,
      these devices are hybrid supercapacitor that have a higher voltage, capacity and energy density (up to 10 times) when compared to symmetric capacitors. They also have a lower leakage and standby currents. Alternatively, traditional supercapacitors have higher an higher power capacity (?) due to the lower ESR, the operating temperature interval is wider and can be discharged down to zero volts. Hybrid supercapacitors can't be fully discharged. Their structures are very similar, but an hybrid supercapacitor uses a graphene anode interwined with lithium and a different electrolyte.
      Another advantage is its discharge curve being closer to that of a battery.
      The fact that it's an hybrid is obvious from the shorter lifespan compared to electrostatic capacitors, but 20000 cycles mean 6 milion kilometers if used in an electric car or over 50 years of duration on daily charge.
      The differences among our supercapacitors are due to differences in distance between elctrodes and the difference between a cylindrical geometry and a pouch.
      So yeah, they were hybrids all along. Cheers from Italy.

  • @flyhigh_hifi
    @flyhigh_hifi Год назад +5

    What about the charge curve? Capacitors stop absorbing the energy after reaching their max capacity. LiPo batteries get hot or even can blow

    • @sirifail4499
      @sirifail4499 Год назад +1

      Capacitors will gladly accept electrons beyond the capacitors rated voltage. You just have to keep pushing them in with a voltage higher than the capacitor has “now”.
      “Gladly accept” is kind of a misstatement. They will accept them, but they will BLOW UP.

  • @Dr_Mario2007
    @Dr_Mario2007 Год назад +1

    To be fair, no, capacitors won't replace the batteries due to how they store energy (Lithium-ion capacitors come quite close, too bad they're no longer made, been looking for that), but it's great for as a bulk storage at the end of the circuit (ie. car stereo amplifier with a supercapacitor to keep it happy, without any power dips in your car, whenever bass rips).
    And of course supercapacitors are useful in certain circuits such as a microcontroller to keep data alive and to keep time, to keep time in clocks (some older VCRs had that power loss feature), and finally, in some PCIe SSD enclosures, to buy SSD time to flush its contents from RAM onto NAND flash chips (I have Dockcase PCIe SSD enclosure that has a supercapacitor for PLP feature).

  • @davidebic
    @davidebic Год назад +3

    Ok so I wrote them an email inquiring about their supercapacitors. Here's a translation of the reply:
    Good morning,
    these devices are hybrid supercapacitor that have a higher voltage, capacity and energy density (up to 10 times) when compared to symmetric capacitors. They also have a lower leakage and standby currents. Alternatively, traditional supercapacitors have higher an higher power capacity (?) due to the lower ESR, the operating temperature interval is wider and can be discharged down to zero volts. Hybrid supercapacitors can't be fully discharged. Their structures are very similar, but an hybrid supercapacitor uses a graphene anode interwined with lithium and a different electrolyte.
    Another advantage is its discharge curve being closer to that of a battery.
    The fact that it's an hybrid is obvious from the shorter lifespan compared to electrostatic capacitors, but 20000 cycles mean 6 milion kilometers if used in an electric car or over 50 years of duration on daily charge.
    The differences among our supercapacitors are due to differences in distance between elctrodes and the difference between a cylindrical geometry and a pouch.
    So yeah, they were hybrids all along. Cheers from Italy.

  • @RCAVDH
    @RCAVDH Год назад +2

    Big Clive took apart a jumpstart powerbank that looks extremely similar to your cell. It looks like they just use a lot of layers to get a high amp discharge.

  • @tahustvedt
    @tahustvedt Год назад +3

    RC toys from China have sometimes come with li-ion packs that claim to be supercapacitors for years. It's weird. I've had a couple of those packs here to help them replace the old battery. I just figured they were trying to market them. People who are clueless about battery tech often tell me how convinced they are that supercapacitors would make cars better. It's annoying.

  • @lucasjustino4509
    @lucasjustino4509 Год назад +2

    To me it reminds me of the battery of a lithium jump starter. basically there are several batteries in parallel sharing the same electrolyte to achieve an output current much greater than a common lithium battery. and if I'm not mistaken, the fact that it has the same electrolyte removes the need to equalize all these internal lithium cells

  • @Cornet_Tooter
    @Cornet_Tooter Год назад +3

    Whenever I hear you say 'Farads', I always think of bicycles.
    Brilliant content as always!
    Thanks!

  • @guystv2308
    @guystv2308 Год назад +1

    At 10:14, When you disassemble the 'SC', you can see copper layers in brown and aluminum layers in silver staggering! That is battery setup.

  • @AtlasReburdened
    @AtlasReburdened Год назад +4

    I would think that the *"4.2V"* is a pretty major clue.

    • @watchmakerful
      @watchmakerful Год назад +2

      Yep, supercapacitor cells usually have lower max voltage, around 2.5..2.7 V.

  • @gabrielhacecosas
    @gabrielhacecosas Год назад

    I have disassembled quite a few lipo batteries and if it looks like one of them, those copper and aluminum plates, the film that separates them ... look to see if it smells like solvent and black powder when heated with a flame throws red fire, if it throws red fire is not graphene is lithium.

  • @thetoasterisonfire2080
    @thetoasterisonfire2080 Год назад +17

    It’s a shame it was a scam, hopefully we get some real capacitor developments soon.

    • @greatscottlab
      @greatscottlab  Год назад +5

      I hope so too :-)

    • @JordanPlayz158
      @JordanPlayz158 Год назад +2

      It might not be a super capacitor, but how did they make a (assuming, walks like Lithium, looks like Lithium, talks like Lithium xD) Lithium Battery that doesn't explode when damaged?

    • @thetoasterisonfire2080
      @thetoasterisonfire2080 Год назад +1

      @@JordanPlayz158
      That was rather strange.
      I have had 18650 cells that just smoked a bit when crushed but no fire and no explosion and yes they were charged, don’t remember what brand tho.

    • @shakerson
      @shakerson Год назад

      @@JordanPlayz158 Lithium titanate

  • @apollorobb
    @apollorobb Год назад +1

    If you paid for it you got ripped off because those are only released from the company for study and analysis. They are not for sale and i believe it is a Supercap they have tons of stuff on their website

  • @LuxmasterCZ
    @LuxmasterCZ Год назад +7

    Its amazing how every battery video in last 5 years fits in 5 min explanation how battery works, and then when I see another one, in it guy takes one apart and be like "no idea what this is". Ironic

  • @alexscarbro796
    @alexscarbro796 Год назад +1

    Why not contact AsItaly and ask if they are prepared to supply a genuine sample for testing?

  • @DashCamSerbia
    @DashCamSerbia Год назад +10

    Fake company. The address is some house in the middle of nowhere, which ony Google maps says it is a company that replaces lightbulbs.

    • @greatscottlab
      @greatscottlab  Год назад +5

      No idea why I did not bother to check the address. Well, mystery solved I guess.

    • @lasskinn474
      @lasskinn474 Год назад +2

      they have a website though, which looks legit enough and would be bizarre to exist as it is just to sell this one.
      it could be a real company, but it could be a 'real company in .. ehm.. italian sense lets say. there's really strange things about the company if it was an actual legit inhouse made supercap like not putting out the info in english is super strange. on their website these flat pack cells are for 'test only' sourcing. a lot of the products they list for sale seem to just be importing other manufacturers stuff.
      my hypothesis is that they are a real company but they just import stuff for the italian local market only and this product is just something their source says is what it is and they are not sure what it is hence they sell it for "test only", a bit cheeky.
      if they were the the actual manufacturer of an actual supercap like this, they would be trumpeting around for some eu money etc in english..

  • @teslacoiler
    @teslacoiler Год назад +2

    Lithium batteries cannot be charged below 0°C or above 55°C (the freezing limit is more problematic and quickly damage the cell) but super capacitors never have this limitations.
    So if, you want to test the "super capacitor", just connect two long wires, put it in a freezer and start to do some charging-discharging cycles (a lithium battery shall degrade very fast in this conditions after few cycles).

    • @greatscottlab
      @greatscottlab  Год назад +1

      That certainly sounds like a fun test for next time :-)

    • @teslacoiler
      @teslacoiler Год назад

      @@greatscottlab May not be fun as a flame test, but it should be definitely the coolest one! 🙂

  • @Karl_Papu
    @Karl_Papu Год назад +3

    Bro, your content is one of the best on RUclips. You are inspiring me not to abandon my passion for electronics 💪

  • @AlexanderBurgers
    @AlexanderBurgers Год назад +1

    Yup, that's a lipo (or li-ion) battery.
    They don't always blow up, some chemistries are much more susceptible than others, the more stable ones need to be insanely overcharged before they do anything.

  • @michaelkaliski7651
    @michaelkaliski7651 Год назад +5

    Given the price, I doubt that the manufacturers were expecting anyone to conduct such destructive testing. Capacitors tend to have high self discharge rates, so charging the capacitor and leaving it in storage for a couple of weeks should see a large percentage of the charge leak away. Batteries by contrast will have a shelf life measured in years. An interesting product but far too expensive and limited at present for use in consumer products.

  • @almanyadayasam5769
    @almanyadayasam5769 9 месяцев назад +1

    4,2V 21000 F değerine sahip bu kapasitör, 54 Watt gücündeki bir lambayı Maksimum 1 saat çalıştırabilir.
    3000 w motora sahip bir elektrikli bisikleti 1 saat tam enerji ile kullanmak istediğinizde bu aküden 55 adet satın almanız gerekir. Bu da yaklaşık 10 bin Euro yapar.

  • @jafinch78
    @jafinch78 Год назад +5

    Appears super safe on the positive note! Price point would be nice to come down. Something like a LIBS, Flame, Plasma and/or Arc style spectrophotomer maybe even of the webcam advance DIY design would be handy to test to see what is actually made of. Might make for some cool DIY or buy videos as well. Maybe even a COTS X-Ray or Gamma Ray spectrometer. The later would be more a gadget since seems there are one or two cost effective ones on the market now and I think there are made in kit forms as well. Wondering if the AsItaly company wanted the supercap back as well to recycle the material? Show is safe for shipping?

  • @TurtleWaxed
    @TurtleWaxed Год назад

    Mom always said, if it's too good to be true..don't buy it. Some of the best advice I ever got from my parents. :)

  • @AtaruMor0boshi
    @AtaruMor0boshi Год назад +2

    It seems to me that you are gratuitously smearing a perfectly legit product, still clearly labeled as "not for sale - still in developing phase - for test ans evaluation only". This is a hybrid capacitor, combining aspects from (super)capacitors and electro-chemical cells. That's the reason of the unusual discharge profile. You should have asked the vendor for some more details and information, before publishing such a questionable video.

  • @hellangel5530
    @hellangel5530 Год назад +1

    That graphene super capacitor just same as mpco lithium cell, same package, same size and weigh too. I use them for my electric scooter. It has high discharge current and more save than normal lithium cell (NCM)

  • @oneviewman
    @oneviewman Год назад +4

    Please make a simple FM TRANSMITTER

    • @greatscottlab
      @greatscottlab  Год назад +2

      I can put it on my to do list. But check out Afrotechmods video about VCOs. That should do the trick.

  • @ethanlake3564
    @ethanlake3564 Год назад +2

    One option could be to connect to a network analyzer (eg, nanoVNA) and see what it tells you. I don’t know what a battery response looks like, but I imagine it would be different than a cap.

  • @cayrex
    @cayrex Год назад

    The current collectors (the metal foil) are copper and aluminium which is used by Li ion batteries. The supercapacitors using same current collector material on positive and negative electrode. And also the discharge curve looks like from battery.

  • @MegaCyrik
    @MegaCyrik Год назад

    Thanks for video :)
    A note on LiFePo cycle. 5000 seems low. Eve boast 6000 cycles to 80% and calb's new line boast 9000 cycle to 80%.

  • @aronhighgrove4100
    @aronhighgrove4100 Год назад +1

    10:54 "Chemical reaction always come with more heat productions". There are endotherm and exotherm chemical reactions, so producing heat is NOT always the case. A reaction might use the surrounding heat and not produce heat.

  • @TushhsuT
    @TushhsuT Год назад

    Taking a weight from datasheet - It is actually 200Wh/kg, that is awesome even comparing with LiIon technology!
    It is really they have no reaction on puncture. Where the energy than goes? Would be nice to try testing the punctured one for the remaining charge.

  • @Buzzhumma
    @Buzzhumma Год назад +2

    I think the chemistry of it is something safe and around 2.1 volts per cell with it actuallly being built with 2 cells in series to get your 4.2 v . Maybe you can finish pulling it apart to see the 2s multiple parellel configuration. It maybe titanate chemistry

  • @DragonAxiom
    @DragonAxiom Год назад +1

    Looks like a solid state battery

  • @yungjahja7444
    @yungjahja7444 7 месяцев назад +1

    To determine whether the claim that a 21,000 Farad (F) supercapacitor with a voltage of 4.2V and an energy storage of 75Wh is real or a hoax, we need to perform some calculations based on the given specifications.
    The energy stored in a capacitor can be calculated using the formula:
    𝐸
    =
    1
    2
    𝐶
    𝑉
    2
    E=
    2
    1

    CV
    2

    where:
    𝐸
    E is the energy in joules (J),
    𝐶
    C is the capacitance in farads (F),
    𝑉
    V is the voltage in volts (V).
    First, let's calculate the energy in joules and then convert it to watt-hours (Wh).
    Calculating the energy in joules:
    𝐸
    =
    1
    2
    ×
    21
    ,
    000

    F
    ×
    (
    4.2

    V
    )
    2
    E=
    2
    1

    ×21,000F×(4.2V)
    2

    Converting joules to watt-hours:
    1

    Wh
    =
    3600

    J
    1Wh=3600J
    Let's do the calculations.
    The energy stored in a 21,000 Farad supercapacitor at 4.2 volts is:
    185,220 joules (J)
    51.45 watt-hours (Wh)
    This is significantly lower than the claimed 75 Wh. Given this discrepancy, the claim that this supercapacitor can store 75 Wh of energy appears to be inaccurate or exaggerated. Therefore, it is likely that the 75 Wh storage specification is either a mistake or a hoax.

  • @EVCustoms
    @EVCustoms Год назад

    Hi Scott... only LTO technology react so safe at drilling them but they are working at nomi,mal voltages 2.3 to 2.8V max

  • @accordv6er
    @accordv6er Год назад

    Lithium Titanate Pouch perhaps? They are sorta in between a cap and LiFePO4, larger, but safe, great charge/discharge rates.

  • @plasmar1
    @plasmar1 Год назад

    from having cut up a few lithium ion pouches, that does look a bit similar; and in some of the cases they didn't start smoking(I tried to electrically drain most of them first)...... trick to get them to do anything was sprinkle water on em, any hint of moisture would start the reaction sometimes if it was a small mist the lithium layer would make like a sparkling effect where the water hit it and in other cases it would ignite completely..... in either cases be careful, if it is lithium it may ignite seemingly out of nowhere

  • @batterynerd8779
    @batterynerd8779 Год назад +2

    I have blown up quite a few lipo batteries. All that matters is state of charge. If it is lower than 20%, not much will happen. But everything over 60% will definetly result in a rapid runaway. If you want a real nice demonstration, charge the battery (Outside!) to 4.4 Volts. That leads to a massive fire.

    • @watchmakerful
      @watchmakerful Год назад

      Some types of modern lithium batteries allow 4.43 V without any damage.

    • @soundspark
      @soundspark Год назад

      @@watchmakerful Is that a surge rating however not intended for everyday use?

    • @batterynerd8779
      @batterynerd8779 Год назад

      @@watchmakerful yes, but mostly high performance phone and laptop batteries. I‘m talking about the most popular NCM- type.

  • @averagedev7768
    @averagedev7768 Год назад

    In Serbia we have ECO Buses eorking on supercapacitors. Buses are chinese made but they work wuite well. The main deal is that is also cheaper then a standrad methane bus from Turkye. Remarkable that they can charge the bus fast in less then few minutes

  • @yume-y3m
    @yume-y3m Год назад +1

    3:36 did you really took a dremel to a super cap? you know you couldve used it or wire cutters to only cut the casing at the bottom where it was indented all around that holds the seal in

  • @karlm5022
    @karlm5022 Год назад

    Just ask for the msds should indicate if there is a particlular non flammable organic solvent and a transition metal oxide on the cathode. Voltage looks indicative of a li-ion battery not a capacitor.

  • @2001pulsar
    @2001pulsar Год назад +1

    Cap-XX makes graphene super caps.
    I had one years ago. They do work well, but still quite low energy density compared to a battery.

  • @axeami1354
    @axeami1354 11 месяцев назад +1

    so just to point something out, it,s not strictly true when you said the battery cell only lasts 5000 cycles. That's the estimated charge cycles the cell will last before hitting 80% capacity, it even states on the sheet that it'll take a further 2000 cycles to hit 70% capacity.
    Even though the capacity may be reduced reduced the cell will still be usable for many more charge cycles.

  • @Gwallacec2
    @Gwallacec2 Год назад +1

    If you pour water on the sheet and it reacts to form hydrogen gas it is 100% lithium or another alkali metal. That’s the easiest way to tell.

  • @ishandiptagarai852
    @ishandiptagarai852 Год назад +2

    Yes that's how a lipo looks inside..i opened one and it's the same..not the same like yours but a 10000mah one of a power Bank..

  • @ghassenmez7810
    @ghassenmez7810 Год назад +1

    It's one thing to see what it actually is, but more importantly, does it behave as a super capacitor from charge/discharge time point of view.
    Also, 20 000 cycles seams way too low for a capacitor, is it normal for super capacitors ?

  • @esleinc6561
    @esleinc6561 Год назад +1

    Can it be fully discharged to 0 volts and then still function again? If not - it's not a capacitor. (I've ran in to this kind of scam before with another manufacturer calling lipo "supercapacitor")

  • @battlecoder
    @battlecoder Год назад

    Great analysis. I'm not a cap (nor a battery) expert either, but after your tests I would agree that there's no way that's a capacitor. Doesn't pass the duck test.

  • @danielbogdanov2926
    @danielbogdanov2926 Год назад

    check black powder coated plates, put it in the open fire and see colour of the flame, if it makes purple colour it is a lithium

  • @IPagma-n7f
    @IPagma-n7f 2 месяца назад

    i have opened a dead 3.7v lipo battery and the structure of it was similar to the graphene super capacitor

  • @electrodacus
    @electrodacus Год назад

    Was your cell charged or fully discharged when you did the mechanical penetration test at the end ?

  • @MichaelWinter-ss6lx
    @MichaelWinter-ss6lx Год назад

    I have once read in "Spektrum" magazin, that a graphen cover over the contacts of a lithium-akku would dramatically increase performance. I have not tried this out yet.

  • @suji730
    @suji730 Год назад +1

    I think time will respond all the doughts about futuristic super capacitors .....
    But one more thing if its have more backup then whats the diff between
    capacitor and a battery....😊

  • @gillssunday
    @gillssunday Год назад

    I also want to say that from the data it is an excellent supercapacitor for some applications thanks to its safety, as you can see from the video, it does not catch fire, and thanks to its 20,000 life cycles, which seem few, but mean over 6 million km for an electric car.

  • @resh7391
    @resh7391 Год назад

    The "datasheet" (it's more a brochure than a datasheet tough) is available on manufacturer site: it is only in Italian but it names the product as a hybrid ultracapacitor with graphene electrodes, it clearly states that the product is not for sale as it is in development and it is only supplied for study and research. Downloading the data sheet seems to confirm your expectations on the charge / discharge curve... maybe it's worth contacting the manufacturer to understand why there's such a difference. Looking at how it's made it clearly is a EDLC capacitor in flat package... then if there's graphene or not and it that makes any difference compared to a regular supercapacitor meh ...

  • @HyeL
    @HyeL Год назад

    Da Kondensatoren die Energie über den ganzen Spannungsbereich speichern, muss man für die Anwendung auch den ganzen Spannungsbereich nutzen können, die Geräte werden also zusätzliche Spannungsregler brauchen, was wieder Verluste und Kosten bedeutet. Das ist auch ein relevanter Negativpunkt, wenn man Batterien durch Kondensatoren ersetzen will.

  • @Lionman-rw7xb
    @Lionman-rw7xb Год назад

    GreatScott can you check out the empty power bank circuits that offer ? I have bought one empty power bank with 8 batteries input that i extracted them from my old laptop battery

  • @Guik1er
    @Guik1er Год назад +1

    There is this written in italian on your capacitor: "sample provided for evaluation and testing only". Why do they sell this thing ?

    • @Guik1er
      @Guik1er Год назад

      On the website, there is also in italian: "Not for sale, we only supply prototype samples for study". Maybe you bought a fake copy of this.
      Edit: But I see in your video that at the time you recorded, you could buy it. It is strange.

  • @JoeyBlogs007
    @JoeyBlogs007 Год назад +1

    Even with low capacity, fast charging partially offsets that issue in a fully built out EV charging network, where you have a charge station at least every 100km or less.

  • @maka5955
    @maka5955 Год назад

    The discharge curve told the essentials. It's not a super capacitor, it's a battery. Some lithium batteries do not light up even if they are damaged. Maybe the conductive material is thin enough that the short circuit is not too energetic to ignite. A high-current small battery requires strong conductive materials and thus aggressive ignition

  • @cmh-re
    @cmh-re Год назад

    it's a test sample, they only sell them as that as they are currently developing them. The datasheet isn't clear, but they do make a graph comparison between their hybrid supercap and a standard li-ion. Probably the current limits comes from the actual strips facing outside as they are really thin. they claim >20000 cycles but it's not specified the depth of discharge.
    They also offer a cylindrical one whit 300A peak current