points by marcosdumay 1 day ago | 0 comments
There will probably never be a battery that can power your home but can be used without any kind of worry.
The right thing is to place the battery in a way that you don't have to worry abut the fire, not to expect a high-density battery to be perfectly safe.
[–] cowlevel 1 day ago
LFP batteries are pretty safe. Look up some videos of demonstrations. You can cut them in half with a metal knife and nothing happens besides the loss of capacity, and I suppose the knife heats up from the short-circuit current as well.
I don't know what kind of chemistry shenanigans are going on to make that happen, but it's impressive.
[–] adrianN 1 day ago
A tank of diesel and a generator are a kind of battery that you have to worry about very little.
[–] marcosdumay 13 hours ago
Are you seriously claiming that fuel depots bring no dire risks? Really?
[–] kasabali 11 hours ago
Diesel is damn hard to set on fire
[–] otherme123 1 day ago
They are kind of difficult to recharge using solar panels. They also smell bad and are noisy.
[–] adrianN 23 hours ago
Of course, but that was not the point. Evidently there are ways to store energy that are quite safe, so you can't conclude that all forms of storage are inherently unsafe.
[–] qwytw 14 hours ago
Well diesel can catch fire in certain circumstances and can do a huge amount of damage when it does. I'm not sure it's that much safer than some types of batteries...
[–] Brian_K_White 1 day ago
inherently self-limiting processes are nothing rare or special
The reason current Li-ion batteries are unsafe is that they contain a flammable electrolyte. There are batteries with higher energy density that have solid or semi-solid electrolytes. They’re so safe you should probably worry a lot more about driving your car than charging your battery.
Worrying about LFP or So-ion is probably also a waste of time.