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LFP vehicle fire.

mikefitz

Solar Wizard
Joined
May 28, 2020
Messages
2,998
Video of vehicle venting and catching fire. The report suggests LFP battery, is this a reporting error?

Mike
 
Isn’t that a lithium ion not LFP?
Usually the media and general public refer to everything battery as lithium ion
 
Hard to even do an investigation of point of failure when it gets that crispy.
 
The more things are in use, the more issues there will be. Just wait till its all "Green" with EVs running all over, I think our fire department rates will go up
 
Remember folks, only in the DIY community do we refer "Li-Ion" as separate from LFP. LFP is a type of lithium ion battery and is referred to as such in other industries.

If I had to bet money I would guess mercedes was using NMC or other spicy chemistry pouch cells. But I don't see concise information yet.
 
The EV Database links do not show cathode material.

This link does seem to indicate it's probably LG Chem NCM:

 
The more things are in use, the more issues there will be. Just wait till its all "Green" with EVs running all over, I think our fire department rates will go up
Most EV fires are with LI batteries not LFP.

EV bike fires are mostly a result of over charging, leaving the battery on the charger after full, using the wrong charger, damaged battery, DIY or black market batteries or stupidity.
 
Am I having a complete blonde moment? I thought LiFePO4 / LFP was a type of Lithium-ion battery, just with different cathode / chemistry compared to NMC / LiPo etc. ?‍♀️
You are right. The common names are problematic. I shouldn't assume without knowing what the chemistry is.
 
Am I having a complete blonde moment? I thought LiFePO4 / LFP was a type of Lithium-ion battery, just with different cathode / chemistry compared to NMC / LiPo etc. ?‍♀️
You are correct.

Any battery with lithium as a cathode/annode of the battery is a Li-ion battery.

LFP is a lithium ion battery.

It is not thw self igniting electrolyte that other NMC and similar lithium ion batteries are.

It is sad when people report the battery is lithium ion without correctly identifying the specific chemistry of the batteries.
 
Either that or hot box charging.

Seems to happen mostly when delivery drivers are hot swapping batteries and not letting them cool down between charges.

Delivery "riders"?

I'll still blame that on the charging equipment.
People plug in electrical devices. The control system needs to regulate voltage and current. I think even my Harbor Freight cordless tools read things like temperature of battery pack, also have fan cooling.

If (AC powered) equipment like chargers cause batteries to ignite, they shouldn't receive UL listing.
 
Perhaps our community doesn't just need to recognize the terminology but adopt it. I'm going to start calling my Lifepo4 bank my "Li-Ion batteries" just to enjoy the replies.
 
If (AC powered) equipment like chargers cause batteries to ignite, they shouldn't receive UL listing.
And there in lays the problem and most of these Ebike batteries and chargers are not UL certified.

Some states are now considering laws to require only UL certified Ebike equipment.

Delivery drivers are buying black market fast chargers and batteries because they are a lot cheaper.

If you buy an ebike make sure the battery and charger are UL certified and follow basic safety charging guidelines and you should not have a problem. I have had several ebikes and ride an Ariel X 52V almost daily in summer.
 
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