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After bus fire, CT pulls electric fleet from service

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1–10 of 148 posts

Re: After bus fire, CT pulls electric fleet from service

#2
IMO this is an aspect of the shift to EV's that I don't hear all that many people talking about- is the gov giving enough resources/training to local emergency services providers to deal with these sorts of fires and the disposal of the EV materials after a fire. Totally surmountable, but I feel like I don't hear the federal gov talk about it much and instead the focus is on more chargers and tax credits to eliminate range anxiety and drive the cost down for consumers

Re: After bus fire, CT pulls electric fleet from service

#3

IMO this is an aspect of the shift to EV's that I don't hear all that many people talking about- is the gov giving enough resources/training to local emergency services providers to deal with these sorts of fires and the disposal of the EV materials after a fire. Totally surmountable, but I feel like I don't hear the federal gov talk about it much and instead the focus is on more chargers and tax credits to eliminate…

The entire point is that you can't "deal" with it. Since car batteries contain the fuel and the oxidizer, there isn't a way to separate them short of blowing the whole thing up. Fires can stop and start spontaneously, and often do (see pictures and videos of Teslas on fire in junkyards).

Re: After bus fire, CT pulls electric fleet from service

#5

IMO this is an aspect of the shift to EV's that I don't hear all that many people talking about- is the gov giving enough resources/training to local emergency services providers to deal with these sorts of fires and the disposal of the EV materials after a fire. Totally surmountable, but I feel like I don't hear the federal gov talk about it much and instead the focus is on more chargers and tax credits to eliminate…

[deleted]

Re: After bus fire, CT pulls electric fleet from service

#6

IMO this is an aspect of the shift to EV's that I don't hear all that many people talking about- is the gov giving enough resources/training to local emergency services providers to deal with these sorts of fires and the disposal of the EV materials after a fire. Totally surmountable, but I feel like I don't hear the federal gov talk about it much and instead the focus is on more chargers and tax credits to eliminate…

The entire point is that you can't "deal" with it. Since car batteries contain the fuel and the oxidizer, there isn't a way to separate them short of blowing the whole thing up. Fires can stop and start spontaneously, and often do (see pictures and videos of Teslas on fire in junkyards).

This is not really true. There are tools and agents to address lithium fires, but you have to have them. If you just try to put them out with water, you're going to be there all night fighting reignition.

Re: After bus fire, CT pulls electric fleet from service

#7
As much progress has been made in EVs, I have no interest in sitting atop of a napalm bomb while zipping around town. There's a few problems that keep me from being remotely interested in EVs, this is one of them. The others are range anxiety, energy storage portability and battery replacement costs.

If I run out of gas on the side of the highway, I call AAA and they can deliver me a couple of gallons of gas or I can walk to a gas station. If your EV runs out of juice, you have to have it towed to a charging station.

Re: After bus fire, CT pulls electric fleet from service

#8

IMO this is an aspect of the shift to EV's that I don't hear all that many people talking about- is the gov giving enough resources/training to local emergency services providers to deal with these sorts of fires and the disposal of the EV materials after a fire. Totally surmountable, but I feel like I don't hear the federal gov talk about it much and instead the focus is on more chargers and tax credits to eliminate…

The entire point is that you can't "deal" with it. Since car batteries contain the fuel and the oxidizer, there isn't a way to separate them short of blowing the whole thing up. Fires can stop and start spontaneously, and often do (see pictures and videos of Teslas on fire in junkyards).

Electric cars could totally be designed to be re-ignite-proof.

For example, you'd have the battery pack detect a breach - for example through a lack of pressurised coolant.

That would then trigger each battery cell to have a PTC resistor discharge it - that could be entirely mechanical.

The PTC resistors would discharge the battery in a few hours, maintaining the battery temperature at say 120C. As water is doused onto the battery, it will boil off.

As soon as the battery temperature cools below 120C, then every cell is guaranteed to be discharged.

Re: After bus fire, CT pulls electric fleet from service

#10
post #6

Earlier quoted context omitted.

The entire point is that you can't "deal" with it. Since car batteries contain the fuel and the oxidizer, there isn't a way to separate them short of blowing the whole thing up. Fires can stop and start spontaneously, and often do (see pictures and videos of Teslas on fire in junkyards).

This is not really true. There are tools and agents to address lithium fires, but you have to have them. If you just try to put them out with water, you're going to be there all night fighting reignition.

Please don’t leave us in suspense: what are these tools and agents? Got a link?
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