Motovista wrote:
Is anyone else following the "don't put your fully charged electric car in the garage" debacle? Apparently electric vehicles burn really well.
Li-ion batteries don't have any specific tendency to catch fire as such, but when they do, most of them (depending on the chemistry) burn with high temperature, long time, emitting hazardous fumes - to put it simply, they are a bugger to extinguish.
Actually this topic has been studied quite a lot and well, because Li-ion batteries are everywhere. Also the ones that include great amount of individual cells, for example in large industrial electric vehicles. In those applications very large battery packs, even larger than in EV cars, get a lot of physical abuse, have to work in extreme conditions, both hot and cold, get dirty, are often charged in various ways - and yet the % amount of problems is quite small.
Bill Dog has a point though - good quality control, packaging, battery management systems and such do play an important part in the safety.
In industrial settings I've witnessed bad/contaminated battery cells been disgarded after tests before they make it to a battery pack. Without the quality control the faulty cells could have been a potential risk.
Then again, unfortunately, this is also a playground for 'urban myths'.
Like, everyone knows about the large car park that burned down in (...fill in a suitabe location...) because of an electric car burtsted into fire. Except even the recorded cases have typically been completely about something else, just including also EV in the fire - and, as said, those have been a bugger to extinguish. I remember at least one such case in Norway, 'the homeland of EVs', that turned out to be a diesel car catching the fire first....