It's great to see these kinds of tests, keep them coming! I think the big win of LiFePO4 isn't that it doesn't burn - clearly it does, it's that it doesn't erupt violently into a gigantic ball of fire like lithium cobalt/manganese does. Looking forward to the overcharge testing!
@HighTechLab
3 жыл бұрын
Thank you! Coming soon!
@KuntalGhosh
2 жыл бұрын
In normal use case like the battery is overcharged or overdischarged or short circuited i believe it won't catch fire like this. Crushing the battery can only happen if like u have an earthquake and your home collapses but then u have more things to worry about than just a fire 😂.
@aliveandwellinisrael2507
2 жыл бұрын
Exactly - a bunch of 18650s would react more violently. Sure, this will still burn your house down lol but it doesn't seem like it would be as intense as e.g. those Tesla fires, given you had an equivalent amount of these batteries
@4nlimited3dition_4n3d
2 жыл бұрын
Yeah, this huge cell would have become a massive firestorm if it was li-ion. Lifepo4 on the other hand seems pretty docile and doesn't really react much even to extreme abuse.
@badgerpa9
2 жыл бұрын
@@KuntalGhosh Lithium are used in RV vehicles that can easily be in an accident causing a puncture.
@evil17
7 ай бұрын
Great test & interesting results. I saw a YT guy accidentally bumped his lab power supply dial up a bit after setting up 16 brand new 280A EVE cells for their final top balance of 3.65v when something fell over & bumped it up to 4.6v for the next few days until he returned to find them all looking like footballs. So he decided to use them and see how they go and after a year of pretty heavy use & abuse he managed to squish them back slowly to a reasonable size and shape, he did tests to see how much life was left in them and he still got 255 amps total from these highly abused batteries & only lost 20-30 amps. I thought that was pretty amazing & a credit to there output ability all things considered.
@BlackheartCharlie
3 жыл бұрын
I'm impressed with how puncture-resistant the cell was. Took one hell of a wallop with a very pointy, very heavy crowbar to cause enough damage to puncture it. Thanks for doing this test! I'm not discouraged by the result; I'm still going to install a house battery bank on my cruising sailboat of 4 x 280 Ah Eve cells.
@HighTechLab
3 жыл бұрын
Awesome! It was a good test to do considering this cell had damage terminals and nothing else wrong with it. Now we all know and can plan our systems out to be safer as a result
@PatricksDIY
3 жыл бұрын
I'm happy to see that they don't explode, and with a proper temperature monitoring system in place I believe something like this could be taken care of quickly if it happened in a home storage Solution. BUT this is one of the reasons I am building a mini power station outside ( like a 5x4) little building outside, because you never know if your going to be out of town, I rather lose all my equipment if need be, than my house, maybe a little over paranoid, but it is what it is lol. Great Video, seeing things like this helps the community a lot!
@greggalf6140
2 жыл бұрын
Better to be paranoid than homeless
@jvalentine8376
Жыл бұрын
I doubt that you could control it . The output of toxic gas in any confined area would drive you away from doing anything unless you had a proper breathing mask and air tank . Also lithium battery fires are very hard to put out . Tesla cars can burn for days . A test like this in the open air of a small battery is nothing like what would happen in a confined area like a camper with a bank of much larger batteries that will all go up and set the whole thing on fire . You are wise to build a separate battery storage area .
@SecondLifeDesigner
2 жыл бұрын
You should open up the aluminum casing and see if all the cells caught on fire. I bet the reason it caught on fire was not a second short from the second piercing but from the impact of the second piercing forcing the air inside the case to blow out the hole from the first piercing. Like blowing air on a smoldering ember. It increased the temperature high enough to ignite the electrolyte.
@mckenziekeith7434
2 жыл бұрын
That is one cell.
@ftwproject658
3 жыл бұрын
Glad you did the test. Volatile electrolyte chemistry is clearly another consideration when purchasing a battery, (i.e. electric car, etc.).
@JK360noscope
2 жыл бұрын
Now that we have options! Yep we're all learning together
@usurpinesusanti3149
3 жыл бұрын
I was told they won´t burn, which is wrong, they burn, but using oxygen comeing from air. Which is much better then the others which provide their own oxygen, but you really cannot say that they are totally safe because they cannot burn at all. Thank you for making that clear.
@HighTechLab
3 жыл бұрын
Yes you are correct. what we discovered was that once the electrolyte was vaporized by the heat of the first puncture that it changed its properties a bit making it now flammable. we believe the second puncture created some small form of a spark that caused those vapors to ignite. Realistically in a real world situation the second puncture wouldn't come later on, imagine a vehicle accident where everything happens all at once
@Mikerockinon1
9 ай бұрын
700 bucks for a battery that can burn my cabin down.hmmm
@Rhinopkc
8 ай бұрын
@@Mikerockinon1is someone throwing 20lb metal spears around in your cabin?
@mosfetkiller3851
6 ай бұрын
@@Rhinopkc i throw them every day in my cabin ;)
@klncow
3 жыл бұрын
Just for your safety,i would were safety goggles next time you test something like this.
@pvbatts
Жыл бұрын
This is my favorite lithium puncture test video.
@LarryButler-kp3se
5 ай бұрын
kzitem.info/news/bejne/kW14uWqHkmWofG0
@gamergotaids
2 жыл бұрын
The reaction they will also vary alot in the chemical composition the manufacture use apart form the main Lifepo4 as well as the battery design. I've seen lifepo4 explode and i have seen them only smoke. That's why its important to know the brands of the cells.
@jimmybrad156
2 ай бұрын
What's the worst you've seen? Got any links? Thanks
@SuperVstech
3 жыл бұрын
Interesting test. The first hole caused venting, and severe heating of the plates... the second hole caused the venting to exit the glowing hole and the vapors passing over the red hot plates ignited the vapor. Now we gotta wonder WHAT the electrolyte is...
@yggdrasil9039
3 жыл бұрын
Some organic CH molecule. Ethylene, propylene, something like that
@adamrak7560
2 жыл бұрын
@@yggdrasil9039 that is why solid electrolyte lithium batteries will be very significantly safer. (when they eventually reach maturity...)
@changeagent228
9 ай бұрын
Beyond 2040 likely. Hopefully before though.
@casemodder89
Ай бұрын
@@adamrak7560 if the electrolyte is solid the ions are embeddee solid. thats the reason high current capable cells will always have a fluid electrolyte. like lead acid. a flooded lead acid with lead plates hanging in the acid solution can provide high cranking amps. an lead AGM battery does so aswell because the electrolyte is soaked up in the glassmatt (AbsorbantGlassMat). but try high currents on a lead gel type and not only wouldn't it provide the amps because of the voltage sag, it would also damage the plates from deep discharge. Soooo: solid state high current batterys are a fairytale and will about never happen. solid battery electrolyte has the same energy level as solid water -ice-. so nuthin' at all. can't supply a pressure washer or water jet with a solid block of an element.
@BlueSky-cy5nw
Жыл бұрын
Nice test. Would have been great if you also tested how easy or hard it is to put out a LiFePo4 fire. I live in a basement and this is what scares me the most about lithium batteries.
@panospapadimitriou3498
9 ай бұрын
there are types of enclosures for even more dangerous batteries.. 100 bucks for a fire fighter enclosure and will keep em warm when its cold!!!!
@walkman1269
3 ай бұрын
I have punctured LiPO batteries which are very different many times. I have noticed that leaving the cells shorted with something metallic it makes it worse. If you would have removed the tool it might not have caught fire at all. I feel like leaving the cells shorted allows the current to create more heat than just a plain puncture.
@jetfu400
2 жыл бұрын
you gave a very detailed description. thanks man.
@WillProwse
3 жыл бұрын
Fun test :D That is pretty awesome you got the electrolyte to combust. Just don't breathe that smoke. Really nasty chemicals in there.
@HighTechLab
3 жыл бұрын
It was only when the second puncture was made that it went up in flames. I've seen countless batteries puncture tested, but never more than once. Did you ever find out what happened to those bigbattery cells? This is actually one of their 170ah Lishen cells.
@carlogolumna8973
2 жыл бұрын
Nasty chemicals huh? I was thinking the same when i saw him puttting the battery on the bare ground. Then that electrolyte and vapor was spilling all over the place. Am i the only one thinking this ain't cool at all? Although it looks like a desert, there a still animals around who may drink from water puddles further down the hill after rain falls. Could have used a piece of sheet metal to cover the ground or smtg. Sorry, maybe I'm too european or green to approve this.
@carlogolumna8973
2 жыл бұрын
And who are you trying to tell me what to do? And why am i misinformed? I'm just referring to the above comment which clearly states "nasty chemicals". Sorry i don't have my own channel yet so i'll leave my comments wherever i want, even if you don't approve. Really sorry pal. And if I'm so terribly misinformed and you're the genius you probably think you are, why don't you enlighten instead of offending me? I'll give you the answer right away: because it's simple and a simple mind is what you are obviously.
@JMTamilminnalSolarTech
2 жыл бұрын
Jm Tamilminnal solar energy India youtuber your sub
@markuswahl2281
3 ай бұрын
Late to the game, but it's clear how nicely the electrolyte burns. How do people think that solid state batteries will make anything safer other than preventing the calm bonfire of the liquid electrolyte?
@theepicadventuresinfinity9037
3 жыл бұрын
I have a lithium iron phosphate battery 8Ah this was very helpful to me of knowing what these batteries do without any protection. Thank you for the tip
@6BlackWings
3 жыл бұрын
I would like to see an overcharge/discharge test. No one is going to stab their power wall with a pike.
@FireAlert
3 жыл бұрын
i was planning on it
@HighTechLab
3 жыл бұрын
We are working on many more tests
@inoahmann7542
3 жыл бұрын
@@FireAlert username checks out
@badgerpa9
2 жыл бұрын
These are used in RVs that can end in an accident puncturing the batteries. Maybe not a pike but part of the frame can crush them.
@boblatkey7160
Ай бұрын
Nope, they're just gonna hit it with their car!
@attix15
3 жыл бұрын
Would like to see the same test with a battery that is charged 70% or higher.
@HighTechLab
3 жыл бұрын
We need to do another test like this to test a fire surpression device, so we can do that one at 100% soc
@BobboNaught-YT
8 ай бұрын
Good test, good to see. Definitely is a fire hazard, but not to the same degree as other lithium. I guess the electrolyte can vary between manufacturers, but the cathode shouldn’t release oxygen to create a super hot self sustaining fire.
@peterj5751
Ай бұрын
For what it’s worth, lead acid can also explode due to gassing hydrogen just like propane, diesel and petrol. All forms of energy storage carry a fire risk in the right conditions. What is much better than Lithium Ion is that it appears to lack the explosive run away fires. Basically, treat any form of energy storage with respect.
@CheapCheerful
2 ай бұрын
Great introduction, very responsible.
@nalo1728
Жыл бұрын
great demonstration! should add if it can be put out with just water/sand .
@stevew3978
Жыл бұрын
Many sellers on Amazon advertise 12V LiFePO4 battery packs as a replacement for lead acid gel cell alarm system backup batteries. It appears to be an extremely dangerous practice to substitute a LiFePO4 battery into the alarm system without knowing anything about the compatibility of the charging circuit (which is designed to work with lead acid batteries) with other battery chemistries such as LiFePO4.
@peter572
4 ай бұрын
Good point, although LiFePO4 batteries should have their own internal Battery Management System (BMS) that takes care of over voltage/current conditions. BMS are programmable, so some may have been tuned to work with lead-acid chargers. But as you said, I would hesitate to use a Lithium chemistry without doing thorough DD on legacy equipment.
@fasfgasdfagadsf
3 жыл бұрын
Love it!!!!! Cave man vs tech!!! More!!!
@StanTrnik
Жыл бұрын
You should try to extinguish it with water or extinguisher on it's peak of fire, to see difference between classic lithium batteries.
@woodrunner51
3 жыл бұрын
Very helpful, thank you!
@tueftler
Жыл бұрын
Very well demonstrated!👍 Sehr gut demonstriert!
@jaffers8593
7 ай бұрын
Thank you for posting this video. I feel there is a lot of BS marketing online that claims these are immune to fire, which they clearly aren't
@neomailman
11 ай бұрын
What gases are being given off?
@gingernutpreacher
Жыл бұрын
I do wonder if the higher capacity of these modern lron phosphate battery has a input to this
@James-ke5sx
Жыл бұрын
It would have been interesting to see if you could extinguish it and whether it would reignite. I just bought a Bluetti and they say you can extinguish it with a regular dry chemical fire extinguisher. But they do not say if it will reignite.
@CL-yp1bs
Жыл бұрын
This was a big 200ah cell right?
@sunnyfpv3694
6 күн бұрын
Any fire extinguishing test out there? I am impressed!
@basspig
9 ай бұрын
That steam admitting from the battery is about 49% hydrogen gas.
@HighTechLab
9 ай бұрын
Do you know the formula for the chemical breakdown? I’d like to know what inside is releasing the hydrogen molecules
@peterking1134
3 жыл бұрын
Why did you pre-discharge the battery before stabbing it??
@HighTechLab
3 жыл бұрын
It was at about 30% state of charge.
@peterking1134
3 жыл бұрын
@@HighTechLab I wonder what would have happened if battery had been at 100% charge
@HighTechLab
3 жыл бұрын
We need to do one more experiment to test a fire suppression device, so we can do full SOC for hat.
@LithiumSolar
3 жыл бұрын
@@HighTechLab Oh man, that's disappointing to hear. Why didn't you stab it at a 100% charge when it's storing the most amount of energy...?
@jimmybrad156
2 ай бұрын
@@HighTechLab That'd be awesome
@maxmustermann2596
2 жыл бұрын
If you break a busbar off the cell, do they also go off? P.S.: I would have expected safety glasses.
@TheStigma
Ай бұрын
I dont think there is any high density battery that wont burn if badly punctured. Pr definition a battery stores energy, and you have to assume that a bad puncture will equal a full short. That energy has to go somewhere. That doesn't mean that there isnt battery chemistry that is safer than others, but thats more in terms of how likely is it to critically fail over time, wear and demanding conditions. When a failure does happen there can also be large differences in how agressively it burns, and how dangerous the fumes are.
@Telugu_Jathi_Galam
Ай бұрын
Very good test Bro
@NavySeal2k
2 жыл бұрын
The problem was your second stab, it created internal pressure because the spear was in the hole and it mostly went out the first hole pushing the fire with it. On an Internal error the flames would be contained i guess.
@d_lollol524
Жыл бұрын
I feel sorry for the grass and little bugs killed by that burning battery . RIP ...
@cprcellphonerepairturkeycr1901
2 жыл бұрын
Not bad, I feel much battery upgrading my UPS to LiFepo4. As someone who works in the industry, LiPO and Lithium Ion in phones and power tools are much more hazardous when the flame starts, that phone your on can shoot a 4ft jet flame in your ear so, heads up
@boblatkey7160
Ай бұрын
Recent studies have also shown that lithium iron phosphate batteries have a far higher release of toxic gases as compared to NMC.
@johncartelli
Жыл бұрын
do they react violently to trying to put out with water like the other lith batteries do?
@rajverma4358
3 жыл бұрын
I have a 48v 75ah battery, can I use its 48v BMS in 12.8volt ? Is it possible?
@richardnott9587
3 жыл бұрын
Now I know to be more careful with them. Hoping I don't accidentally drop one and puncture falling from my work bench. Will use welding gloves and pliers for sure. Was good info to know. Thank you
@budmartin3344
3 жыл бұрын
Are the cells Voltage really ZERO Volt? May be the BMS shutdown so no Voltage is present at the terminal when you shorted out the output terminals
@peter572
4 ай бұрын
There was no BMS connected to this individual cell.
@kirostar12
3 жыл бұрын
That test show me how danger the batteries are. I will go with AGM for now.
@michaeldoherty2289
2 жыл бұрын
All batteries are dangerous when catastrophically destroyed this way. No explosion here. A bank of AGM off-gassing hydrogen would be much more likely to kill you outright in the blast. I'll take lifepo4 any day.
@Funcentric
Жыл бұрын
I won't be puncturing my batteries, but overall is LiFePo4 more resistance to overcharging or overdischarging leading to explosions?
@HighTechLab
Жыл бұрын
Over discharging won’t cause any runaway reaction. Over charging without a bms can cause electrolyte venting.
@fradaja
10 ай бұрын
So basically if you short a battery that’s bad , Who knew?
@jamesmason7124
2 жыл бұрын
Have you ever tested LTO cells
@tommybronze3451
Жыл бұрын
Thanks for the vid, hope this will convince some idiots claiming that lfp can’t ignite. Yes those are far less capricious than cobalts, but lto are only truly safe ones (and expensive as hell)
@michaeldoherty2289
2 жыл бұрын
Very informative test. Did your initial shorting melt off the blue cover? Was that a fully charged (3.65v) lifepo4 cell? How many ah was it? 200 or so?
@guy7gsa
3 жыл бұрын
I'm sure you can still balance that battery lol
@dominictarrsailing
11 ай бұрын
since this was just one particular element of the chemistry that burned, does that mean that different makes of batteries might not actually burn? although, if you can put out the fire it's a risk that can be mitigated
@teemum.9023
11 ай бұрын
I admire a lot battery concept. It is packed with energy in a very technical way in a physical form which can change into chemical force
@diysolaradventures7894
Жыл бұрын
What about dents in the casing of Lifepo4 cells are they still safe to use do u have a video on dented cells ?
@loganv0410
3 жыл бұрын
Excellent test vid. Shows what it takes to make a relatively safe chemistry fail.
@HighTechLab
3 жыл бұрын
Thank you!
@kevinroberts781
3 жыл бұрын
I just preformed this test on all my batteries. Now they won't take a charge....
I would have liked to see you put it out with a proper fire extinguisher to prove it would stop the fire
@TheGreenHeartofItaly-fl3wv
Ай бұрын
No, I don;t think you can extunguish it with a 5 gallon bucket. My chemistry is rusty, but I thought the LiFePO contained everything necessary to burn. So, they are tough to extinguish. You got that PO4 group there, so (and I might not be right on this) it seems the lithium would scavenge at least some of the PO4's oxygen, then, how noxious the combustion gasses are is TBD. I would suggest perhaps testing that. But as you say in the intro, they are a safe if you take everything into account. Risk of puncture could be minimized with a well planned installation? Good work though.
@HighTechLab
Ай бұрын
@@TheGreenHeartofItaly-fl3wv it does not contain everything to burn. There is no free oxygen, its phosphate so the oxygen is not easily released like NCA where the oxygen is bonded to cobalt and is easily broken free supporting combustion
@TheGreenHeartofItaly-fl3wv
Ай бұрын
@@HighTechLab Excellent! seriously, my chemistry is rusty, so I was speculating. The fact remains though they are difficult to extinguish. Apparently. I assumed they contained the oxidizing agent, but perhaps the reaction is more complex. I will dig into it a bit, but if you can accelerate the general understanding in this area it would be very good. Perhaps even to fire fighters with the few fires that resulted from electric car crashes.
@___Chris___
3 жыл бұрын
I'm curious regarding the chemical reaction of that fire and whether it's about the battery chemistry alone or if it requires atmospheric oxygen, too. Would it react the same way in a vacuum or a relatively airtight enclosure, i.e. with limited oxygen supply? Does installing the battery e.g. in an airtight metal box (with overpressure release valve) reduce the fire hazard?
@kdkd693
3 жыл бұрын
He says in the comments the electrolyte contains perchlorate and organic solvent. Perchlorate is a strong oxidizer and will provide its own ‘oxygen’ for combustion. So yes it will burn once a spark or it reaches its critical auto ignition temperature (which is significantly higher than in other lithium battery chemistries). Glowing red hot that we saw after the initial stab is 500C+, so high enough for auto ignition. The combustion products (smoke) do need to exit the combustion site, or they tend to self-smother the fire. The second puncture hole gave a route to flush these out, hence the fire got way more intense. But as he states, it’s unlikely in practice a second separate puncture event would happen in a real life accident.
@t1n4444
Жыл бұрын
@@kdkd693 No. The second hole simply provided air (20% oxygen) to feed the flames. Plenty of info on how fire "works" to be found elsewhere online. Your suggestion was rubbish so kindly don't do it again. This video was hardly conducted under controlled conditions and released goodness only knows what gases into the atmos'. In UK this sort of silly experiment would be condemned on the grounds of atmospheric pollution. However, the clip did display that the item was not proof against "careless rough handling" ... exactly like almost anything else in the electronics dept'. The result we all saw for ourselves. Ergo LiFePo4 can burn if damaged, so, although it was a very poorly constructed and conducted experiment (no PPE or fire suppression bottle or even any sort of decontamination kit come to that) the result was that the cells could and did burn. And of course if a battery was in an unsuitable (flammable) location then you wouldn't need a lot of imagination to see what happens next. All in all ...3/10.
@kdkd693
Жыл бұрын
@@t1n4444 thanks for your kind words….
@t1n4444
Жыл бұрын
@@kdkd693 I should jolly well hope so indeed. More information ... on anything ... online than you can imagine. If you don't care to read up on the research papers published by battery users, eg Ford, say, then simply search YT. If there's something that can be done by people then YT will have a clip available somewhere. And some of the video clip stuff people post on YT is jaw dropping with regard to their personal safety, that of others and the environment/atmosphere. Punching holes in a lithium battery of any chemistry to "see what happens" is not very sensible.
@kdkd693
Жыл бұрын
@@t1n4444 sarcasm seems to be lost on you… Stop behaving like a sanctimonious prat, a term you English seem to comprehend
@valtterinikula6386
2 жыл бұрын
State of charge when punctured? this is major factor in Lithium batteries. Btw Please, use proper respirator when you do these tests. Fluorides released from the burning reaction can be really bad for you. There is very little test data on amounts of fluoride released but they seem to agree that it can be even lethal. if breathed directly in (very corrosive for lungs) Something interesting i did learn with Li-Ion cells, is that if you just open them, there can be next to no visible electrolyte, but if you short them internally or externally, they push electrolyte out from the inner structure. with cells i have played with, i haven't seen "running electrolyte" or slushing liquid inside the cells, also when opened, its damp but not dripping. Short-circuiting changes this quite dramatically, and there can be puddle of electrolyte suddenly, and all it needs is a spark to have a fire ball. Important factor here however is that this cell if was fully loaded, behaved very mildly, and if it had only very low state of charge, then this tells very little.
@gauya
3 жыл бұрын
That's a very useful test.
@guitartec
2 ай бұрын
DOES ANYONE KNOW WHO CAN REBUILD MY 48V 20Ah 60a LiFePo4 Scooter battery on the East Coast? I'm in RI.
@MrDaedalusWren
Ай бұрын
Had you not hit it a second time, it would not have caught fire. The vapour being released from inside was too concentrated to actually be flammable. Outside the vapour mixed with oxygen and diluted the vapour enough to become flammable. The red hot metal would have stayed inside and only vented off. Because you hit it again, it caused a pressure shock that sent particles of red hot metal out of the vent hole into an environment where the mixture of vapour and oxygen were volatile.
@brade2163
Ай бұрын
0:31 Well, the fire is because there is a thermal runaway Impact of cell chemistry, when the temperature is above 240 degrees for these types of lithium ion phosphate these will catch fire, now such sudden increase of temperature created by this vertical sharp metal rod after striking it on this battery is what causing this fire. The striking is generating temperature above 240 degrees. Another alternative maybe Lithium titanate oxide battery.
@SpoonerTuner
Жыл бұрын
thanks for doing this. ya I thought they didn't catch fire too. But like you said they are still much safer then the other chemistries
@Tennouseijin
Жыл бұрын
Nice. I'm trying to get into PEVs, but seeing Li-Ion fire videos makes me a bit paranoid, like I would not want to keep a big Li-Ion battery at home or in the office (say, if I commute to work using a PEV, and would like to charge it at work, potentially unsupervised). This on the other hand looks... ok, still bad, but in comparison much more manageable. Not 'run for your life, let your house burn' bad, but 'grab a fire extinguisher, we've got this' bad.
@DownhillAllTheWay
Жыл бұрын
A petrol-driven car can catch fire too. Compared with what I have seen when other Lithium batteries catch fire, this looks pretty benign.
@Jogibaer_universe
5 ай бұрын
Interesting, nice test. 👍 LiFePO4 =| LiFePO4 apparently. The inflammability depends on the used electrolyte, because in other test the LiFePO4 cells doesn't ignite. Again, very interesting. 😊
@NOUSHADALI7055
Жыл бұрын
How much copper is produced in this battery 3.2v 80ah
@robertkosovich1232
3 жыл бұрын
interesting, THANK YOU!
@mennims
7 ай бұрын
Theres fire but Li-ion spits fire like a jet engine. Remarkable how far battery technology has come
@honeybadger6127
Жыл бұрын
you never made the video showing an overcharge condition?
@palmblue1
Ай бұрын
dude where was your safety gears?
@stevey500
2 жыл бұрын
I know this is off topic and all but- What phone/camera was used for this? Dynamic range is killer!
@HighTechLab
2 жыл бұрын
iPhone 12 Pro Max
@gammonbunji9292
5 ай бұрын
FYI did you notice when the fire started the white smoke stopped
@Pembquist1
9 ай бұрын
I have been toying with changing out my dying diesel in my sailboat for an electric system as I don't use the engine except to get out of the marina and maybe an hour tops during the day. Fire on a boat is extremely bad so it is one of my concerns with electric. I would like to see an attempt to extinguish this battery as one of the things I do not like is that batteries seem to contain all the reactants necessary to burn so smothering them or cooling them doesn't extinguish them. With a diesel the automatic fire extinguishing system does work to some degree.
@ssoffshore5111
2 жыл бұрын
Neat test, but please where some safety gear next time, you never know what's going to happen doing something like this... it's not worth losing your vison over!
@andrewt9204
2 ай бұрын
Interesting, other tests had nothing happen but gas release like it did at first. Sure looks a heck of a lot less violent than NMC/NCA though. And like you said, much easier to extinguish.
@shurlocksam86
11 ай бұрын
Why did you not wear personal protective equipment?
@SuperBartet
9 ай бұрын
Not a very good test, this is not a battery in a normal situation. You did it up on a hillside with a good wind. Are LFP (LifeP04) safer than L-ION? The answer is not only Yes it is also they are far more dangerous, it just depends on how you look at it. So why yes to safer? The only good thing about LFP is the thermal runaway needs to get to 450c (300c for L-ION) before it's sudden unscheduled disassembly happens, so you have more time to run away from the explosion. But why am I saying explodes? did not do that for you. Hydrogen fluoride, hydrogen chloride, and hydrogen cyanide, are just some of the very dangerous gas's given given off by a lithium fire. L-ion battery 28% these are hydrogen gas's, LFP battery 51% not only are this type of hydrogen gas's very deadly to breath, but they are extremely explosive. So a LFP battery is just a bigger bomb. So I think you may understand why your test did not explode, it was the wind blowing the gas's away. So think about the battery indoors, or in a car where the gas's can vent to the inside of the car. Accidents do happen batteries will get damaged and start to vent gas's, and when they get to thermal runaway, if the gas's are not blown away BANG, there's your explosion. Also Lithium Ion Burning velocity is 51 cm/second, LiFeP04 LPF Burning velocity is 112 cm/second, so it's going to set fire to more cars or buildings around it. LFP is also heavier than a L-ION battery. So please no one repeat this guys test, it is very dangerous. And if you want to use this type of battery, treat it with the full respect it needs. Which also means if you have a EV with lithium batteries do not crash it.
@Ghost572
8 ай бұрын
Are you just making this stuff up as you go along? How is the LFP battery a bigger bomb when lithium ion contains more energy density than an LFP.
@mohammadnazmudduzadeputych7791
10 ай бұрын
Still it has a very good opportunity to extinguish it easily as he says that the battery does not release it's own Oxygen, and if you foam it with extinguishers to isolate from oxygen of air it will extinguish.. This battery is the future of EV.
@anunakizz
2 жыл бұрын
se supone que nunca pinches tu bateria, pero lo real es que en un accidente a 80 km por hora en un scooter no estallara, no esta claro todavia
@Theimpromptulife
7 ай бұрын
I live in desert and use my 767 generator when I travel. I’ve been worried about temperature in vehicle setting it off. It’s winter now, but summer will be here soon
@SkypowerwithKarl
2 жыл бұрын
I would have been interested in seeing a deep dent on the side and another one on with deep dent on the edge or corner. Does it swell and pop the vent or flame up? I know what happens when you shoot a charged lithium polymer with a .22 …… fireworks. Much worse than that LiFePO4.
@easylooker
3 жыл бұрын
At first the vent on top was working like it should. After another jab in the side did the trick on getting the fire going. I'm wondering when you clamp these cells together that over time the rubbing action of expansion and contraction and just general vibration will rub through the blue plastic exterior and short out the batteries?
@HighTechLab
3 жыл бұрын
The aluminum case is not permanently bonded to positive or negative. The only difference in potential is through the electrolyte that is internally contacting the aluminum case.
@sebek6543210
6 ай бұрын
Great job
@michaeldoherty2289
2 жыл бұрын
Everybody is so concerned that the case will flow electricity if the blue cover is compromised. You conclude it did not. Seems no additional isolation material between cells in a pack seems necessary.
@mhnoni
2 жыл бұрын
Can we get an overcharge test like this one? thanks!
@CosmickGold
2 жыл бұрын
The battery did not catch on fire. What happened was that the second strike with the pick caused a spark. The gas that was already escaping is flammable! So the spark from the second pick strike caused the already-escaping-gas to ignite, becoming the fire we saw.
@meezee894
9 ай бұрын
causing the battery to catch on fire
@checkingoutgypsymike2075
3 жыл бұрын
I ordered 8 cells, they came in two boxes and there was one cell in each set that is bulged. I've yet to compress them, but there's just enough swelling that the buss bars barely fit. I see that's common with the lifepo4 3.2v cells, and they still pull capacity. But it makes me curious it it swelled anymore if compressing them would be dangerous. I saw a couple of videos where smaller types have actually been pulled out and then swelled to double their size, have you thought of doing a compression video? Take a swollen cell and squeeze it to see if it pops lol.
@RustyShakleford1
9 ай бұрын
Swelling is fine and normal unless it's an unevern obvious bulge in one spot. The cells expand and contract with heat and charge
@basicsteps
Жыл бұрын
What if a bullet would pierce through?
@swecreations
Жыл бұрын
Very undramatic. Impressive.
@b.morris2816
3 жыл бұрын
I think under normal use and normal failure modes it will just off gas and not self ignite like a lipo.
@HighTechLab
3 жыл бұрын
I think the gasses only ignited because when I sent the spike through it the second time, it cased some level of internal shorting that made a spark that ignited the electrolyte that was being vaporized.
@nicholasmelosi
2 жыл бұрын
Great video man - i bought 6 lithium ion phosphate batteries for our truck camper. i have set up storage between the camper and the truck bed. is that a safe place to store? how much gas do they give out?
@DavidHalko
Жыл бұрын
Depends on your locality. LiFePo4 can short if charged when below freezing.
@vroor32
Жыл бұрын
@@DavidHalko but wouldn't the BMS step in and stop the charging?
@DavidHalko
Жыл бұрын
[Dave] - “LiFePo4 can short if charged when below freezing. @@vroor32 - “wouldn’t a BMS stop it?” Yes, stop charging your battery if it is too cold, but that might not give you the warm & fuzzies you if you live in Canada, Finland, Sweden, Alaska, North Dakota, etc. No, the short occurs within the battery, not on the outside of the battery. Dendrites grow from one pole to the other inside the battery, kind of like stalagmites & stalactites grow inside a cave. You may see a stream going in one side of a cave, and coming out the other… kind of like battery cables attached to a battery. You may stop the flow of water outside a a cave, kind of like a BMS stops the flow of current outside a battery, but you never stop the stalagmites & stalactites from growing inside, the same way you can’t stop the dendrites from growing from the outside. Once the dendrite crosses the battery from one pole to the other, inside the battery structure, a short occurs, and a thermal runaway event will likely soon follow. The dendrites grow, as the battery ages. Charging during low temperatures only accelerate the growth. Toxic fumes are emitted with heat during a thermal runaway and you will not want to be an enclosed area (ie inside a car) during that time (ie driving on a freeway at 70 mph. When it is time to change a battery, under normal operation, it basically becomes a ticking time bomb… especially if used in an area close to the poles, where charging is done at or below freezing.
@vroor32
Жыл бұрын
@@DavidHalko ooofff!! So what to do?? Buy self-heating LiFePo4 battery (keep outside vehicle) or get bluetti style battery and pay more money?? 🤔
@DavidHalko
Жыл бұрын
@@vroor32 - self heating batteries are good, those clearly take energy. Battery performance decreases in cold, so that can be problematic for driving. Keeping cars indoors help, so no parking & charging cars outside in the winter. A car with growing dendrites are no fun, keeping them in a garage attached to living areas, since you could magically wake up to an unexpected thermal runaway event. 😢 The days of powered & heated detached garages may be popular, in the near future.
@arebear4797
3 жыл бұрын
should have punture at least 50% charged. Then we could say the test is legit. No one drain their lifepo4 before they know someone going to puncture their cell.
@HighTechLab
3 жыл бұрын
The cell was at around 30% state of charge. The testing of shorting I did melted the terminal before I could get conclusive data
@XSAILOR65
8 ай бұрын
Interesting that shortening does not do much but puncturing creates a fire. In most cases shortening is probably the biggest risk though.
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