LiFePO4 Puncture Test - Can these batteries catch fire? Is LiFePO4 Safe?
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3 سال پیش
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Do not try this at
Do not try this at home, work, school, in a car, on a boat, in a bus, on the freeway, or anywhere for that matter!!
Attention viewer: Please consider these flames - Gasoline, wood, paper, just about anything, can put out flames of similar scale. We believe that the second puncture caused a spark that caused the vapor to burn. That doesn't mean these batteries are ticking time bombs, it means that proper safety, e.g. MAKING SURE A CELL CANNOT GET PUNCTURED TO START WITH should be priority number 1. We are going to be doing short circuit testing, overcharging testing, and more, very soon, but we start with the worst-scenario case of something going terribly, terribly wrong.
Todays test was constructed after reading through countless testing and specifications for LiFePO4 batteries. I have found that many of them specify a safety parameter for details such as overcharging, over discharging, crushing, and so on, however, none of them give any detail with respect to puncturing. In this video, I took a heavy bar that had a spike on one end, and punctured an aluminum-cased LiFePO4 cell that I am doing other testing on. The result after the first puncture was simply venting of vapor, but I believe that when I made the second puncture, there was a spark produced that caused this electrolyte vapor to ignite, leading to the flame ball observed in the video.
In a video coming soon, we plan to compare this to the type of fire that would be created with other battery chemistries, such as Li-Ion that contain cobalt. Cobalt within batteries allows the batteries to have a thermal runaway which cannot be extinguished due to the chemicals providing their own oxygen. Later beyond
If we take a look at the chemical makeup of a LiFePO4 cell, we will observe that there are more chemicals inside of a battery aside from JUST LiFePO4. Take a look of this info I copied from Wikipedia:
Source: https://en.wikipedia.org/wiki/Lithium...
Cathode composition (weight)
90% C-LiFePO4, grade Phos-Dev-12
5% carbon EBN-10-10 (superior graphite)
5% polyvinylidene fluoride (PVDF)
Electrolyte: ethylene carbonate–dimethyl carbonate (EC–DMC) 1–1 lithium perchlorate (LiClO
4) 1M
Anode: graphite or hard carbon with intercalated metallic lithium
If you take note of the electrolyte, and further research dimethyl carbonate, you fill find that this is flammable.
#LiFePO4 #LiFePO4Puncture #LiFePO4Fire
Overview of LiFePO4 0:00
Puncturing 2:16
Smoking 2:25
Internally Glowing 2:53
Battery Burning 3:16
Flammability Conclusion 7:06
Join the HighTechLab Discord Server! Discord: discord
Visit my website at Https://www.currentconnected.com
FTC Disclosure Statement:
Some links on this YouTube channel may be affiliate links. We may get paid if you buy something or take an action after clicking one of these.
HighTechLab is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com
Attention viewer: Please consider these flames - Gasoline, wood, paper, just about anything, can put out flames of similar scale. We believe that the second puncture caused a spark that caused the vapor to burn. That doesn't mean these batteries are ticking time bombs, it means that proper safety, e.g. MAKING SURE A CELL CANNOT GET PUNCTURED TO START WITH should be priority number 1. We are going to be doing short circuit testing, overcharging testing, and more, very soon, but we start with the worst-scenario case of something going terribly, terribly wrong.
Todays test was constructed after reading through countless testing and specifications for LiFePO4 batteries. I have found that many of them specify a safety parameter for details such as overcharging, over discharging, crushing, and so on, however, none of them give any detail with respect to puncturing. In this video, I took a heavy bar that had a spike on one end, and punctured an aluminum-cased LiFePO4 cell that I am doing other testing on. The result after the first puncture was simply venting of vapor, but I believe that when I made the second puncture, there was a spark produced that caused this electrolyte vapor to ignite, leading to the flame ball observed in the video.
In a video coming soon, we plan to compare this to the type of fire that would be created with other battery chemistries, such as Li-Ion that contain cobalt. Cobalt within batteries allows the batteries to have a thermal runaway which cannot be extinguished due to the chemicals providing their own oxygen. Later beyond
If we take a look at the chemical makeup of a LiFePO4 cell, we will observe that there are more chemicals inside of a battery aside from JUST LiFePO4. Take a look of this info I copied from Wikipedia:
Source: https://en.wikipedia.org/wiki/Lithium...
Cathode composition (weight)
90% C-LiFePO4, grade Phos-Dev-12
5% carbon EBN-10-10 (superior graphite)
5% polyvinylidene fluoride (PVDF)
Electrolyte: ethylene carbonate–dimethyl carbonate (EC–DMC) 1–1 lithium perchlorate (LiClO
4) 1M
Anode: graphite or hard carbon with intercalated metallic lithium
If you take note of the electrolyte, and further research dimethyl carbonate, you fill find that this is flammable.
#LiFePO4 #LiFePO4Puncture #LiFePO4Fire
Overview of LiFePO4 0:00
Puncturing 2:16
Smoking 2:25
Internally Glowing 2:53
Battery Burning 3:16
Flammability Conclusion 7:06
Join the HighTechLab Discord Server! Discord: discord
Visit my website at Https://www.currentconnected.com
FTC Disclosure Statement:
Some links on this YouTube channel may be affiliate links. We may get paid if you buy something or take an action after clicking one of these.
HighTechLab is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com
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