Hi - being new to candlepower, I come hear with a loaded question -
I am coming from the EV and electronics forums, and I am sick and tired to hear their horror stories of 18650's exploding like a grenade, and spewing hot chemical gasses in your face, and once a cell catches fire, the rest of the pack blow up like a mini-nuke. None of these are first-hand knowledge, and seems to be perpetuating an urban myth about 18650s.
How real are these horror stories? All I could find on YouDupe are very old vids regarding the Sony defective 18650s in laptops.
My applications relate to EVs, and not racing. So the power drain is a very modest 0.3C, and maximum 0.5C, as the packs are huge - 12 kWh or 40 kWh.
Do we hear of laptops exploding anymore? Or Teslas exploding as they are sitting and parked? No.
What is the chemistry of these two cells? I assume they have moved away from pure cobalt to NMC or NCA a long time ago?
What is the consensus here regarding the safety of the top rated Pany, Samsung, and LG 18650 cells? Has anyone a video for top rated cells testing 1- nail penetration or 2- non-puncturing but internal shorting heavy impact?
Thank you in advance for any opinion or information provided.
I am coming from the EV and electronics forums, and I am sick and tired to hear their horror stories of 18650's exploding like a grenade, and spewing hot chemical gasses in your face, and once a cell catches fire, the rest of the pack blow up like a mini-nuke. None of these are first-hand knowledge, and seems to be perpetuating an urban myth about 18650s.
How real are these horror stories? All I could find on YouDupe are very old vids regarding the Sony defective 18650s in laptops.
My applications relate to EVs, and not racing. So the power drain is a very modest 0.3C, and maximum 0.5C, as the packs are huge - 12 kWh or 40 kWh.
Do we hear of laptops exploding anymore? Or Teslas exploding as they are sitting and parked? No.
What is the chemistry of these two cells? I assume they have moved away from pure cobalt to NMC or NCA a long time ago?
What is the consensus here regarding the safety of the top rated Pany, Samsung, and LG 18650 cells? Has anyone a video for top rated cells testing 1- nail penetration or 2- non-puncturing but internal shorting heavy impact?
Thank you in advance for any opinion or information provided.