Feel free to read through this thread and draw your own conclusions.And if this was the case, wouldn’t all 4 cells be damaged instead of one single cell catastrophic failure ?
Feel free to read through this thread and draw your own conclusions.And if this was the case, wouldn’t all 4 cells be damaged instead of one single cell catastrophic failure ?
How hot are the gasses when LFP vents? Can this ignite wood? Melt aluminum plate? It was hard to t
I’m guessing this is a possibility, thst the blue film wore through somewhere and short circuited… maybe? Cell voltage was 3.4 when it happened and dropped from there. I never blew a single fuse anywhere in the system and none of the wires had any wear or melting excFeel free to read through this thread and draw your own conclusions.
It is a possibility. Either that or something happened to the cell's terminal due to the lack of proper compression, and that in turn caused an internal short in the cell. Of course it's still possible the cell shorted internally by itself. But I find it odd a cell would short internally by itself after being in service for a year.I’m guessing this is a possibility, thst the blue film wore through somewhere and short circuited… maybe? Cell voltage was 3.4 when it happened and dropped from there. I never blew a single fuse anywhere in the system and none of the wires had any wear or melting exc
I don't mate. I just corrected some people who were saying lifepo4 explode into flames and vent toxic gas then this tool decided to try and flex his "expertise" lol. I get all my info from Will's YouTube/blog or industry professionalsPlease don't get news or technical information from FB on anything.
Agreed, go to YouTube and forums for technical informationPlease don't get news or technical information from FB on anything.
And always verify the information from multiple sources. Youtube and forums are fallible, as well.Agreed, go to YouTube and forums for technical information
There is much to be learned from those that are not professionals. Sometimes peoples posts of hands on experiences are intriguing and much can be learned from them as well. And some who claim to be "industry professionals" have opinions with little to no data to back it up. And if they do have data it might be old data.I don't mate. I just corrected some people who were saying lifepo4 explode into flames and vent toxic gas then this tool decided to try and flex his "expertise" lol. I get all my info from Will's YouTube/blog or industry professionals
Internally, one of the terminals is constructed of aluminum. That is part of the battery chemistry that makes it work. Yes there is a charge on the exterior case. No, it is not connected to the positive terminal. The current it can generate is small, it is missing some of the other coatings present on the true cell positive to carry a substantial amount of current. This is why they wrap the cells.And can anyone confirm the casing on these cells is in fact this dangerous and any contact with metal can cause a short circuit?
@Will Prowse Could you clarify why the battery behavior in the “spearing” video isn’t an exothermic reaction resulting in combustion? It doesn’t seem like the spear provided a spark. It looks like a second major puncture resulted in a fire, no?The electrolyte is flammable. If a cell is physically damaged, you can catch it on fire. But for an exothermic reaction to occur to cause combustion, from the literature I've read, is impossible with lifepo4. Well, unless you had a pile of kindling next to a spark generator of sorts ? or a dead short next to a fuel source. But to have combustion caused internally, is impossible.
That is literally impossible. Not exothermic.@Will Prowse Could you clarify why the battery behavior in the “spearing” video isn’t an exothermic reaction resulting in combustion? It doesn’t seem like the spear provided a spark. It looks like a second major puncture resulted in a fire, no?
That is literally impossible. Not exothermic.
Electrolyte is flammable, something caused initial combustion event and electrolyte burned.
I think you should recreate this event in a laboratory. Pretty sure the second puncture caused combustion. Those cells are hermetically sealed for good reason. But it is impossible to have self propagating thermal runaway with lifepo4. But that electrolyte will burn.