31–40 of 63 posts
There is no reason I can’t put a swimming pool size battery under my house. I don’t care what the energy density is, make it bulletproof and cheap and massive.
For some reason I wouldn't exactly feel safe knowing there is a huge battery under my house that may combust at any moment.
Earlier quoted context omitted.
Why under the house? It can sit under your yard, no need to bother with so many tons of construction concrete on top of it.
Not everyone has a yard lol
(Not everyone has a house either, some rent, others live in apartments, lol)
note sodium-ion is no longer two or three times the weight of lithium-ion, there is only a +33% penalty apparently the problem is there is not yet enough volume in production to compete on price, which I thought was the whole point? > sodium-ion specs have improved to the point that the technology could break into the general EV market. A recent study by Moritz Schütte at Aachen University in Germany and his colleagu…
That's competing against LFP chemistry, so 33% penalty on a chemistry that itself has a penalty versus NMC. My understanding about sodium though is that the performance in cold and heat is excellent. So even if you pay a penalty for weight, you can drop the thermal management, which saves quite a bit. For grid storage, this chemistry will be a game changer. For vehicle, I think it has a ways to go before being prefer…
ie. so the fire department doesn't have to spend three days trying to put out a Tesla fire
for long hauls, not stop and go city traffic, the weight penalty doesn't matter as much once the weight is moving
a tractor-trailer could have a huge cell behind the cab or replacement the massive diesel tanks?
Earlier quoted context omitted.
For some reason I wouldn't exactly feel safe knowing there is a huge battery under my house that may combust at any moment.
That's the beauty with sodium ion batteries, they are generally considered to be even less flammable than already pretty safe LiFePO4.
Really hoping this enables safer battery tech too. Lithium fires are scary
And gasoline fires and high speed collisions aren't? This is the bit of paranoia around EV deployment that I genuinely fail to understand. Personal vehicles are by far the most dangerous apparatus with which we interact, already. And we're fine with it! Have you ever, even once , called a Civic or Vespa "scary"? But put a battery in it suddenly they need new tech before you'll be comfortable?
Gasoline car fires are quite rarer in modern cars (don't know about the 1950s), and easier to put off than battery car fires.
And people are already afraid of high speed collisions, plus they are orthogonal of the energy technology used.
>Personal vehicles are by far the most dangerous apparatus with which we interact, already.
And under what framing does it make sense to use the above to argue in favor of adding a dangerous battery tech to them is thus not problematic?
Obviously manufacturers are aware of this and other chemistries of sodium-ion exist, but when a market is new you can sometimes get all manner of competing tech floating around.
I have entertained the idea of being an early adopter for home battery storage, but learning this made me hold off until their was more info/you could be sure about what you were buying.
Earlier quoted context omitted.
For some reason I wouldn't exactly feel safe knowing there is a huge battery under my house that may combust at any moment.
That's the beauty with sodium ion batteries, they are generally considered to be even less flammable than already pretty safe LiFePO4.
Aqueous sodium ion chemistries like Na-VPF and Na-tmCN are more fire-safe than lithium, but they're also not as developed/available yet.
Na-NMF, which is what a random off-the-shelf sodium cell is likely to be, is actually more flammable than LiFePO4.
There is no reason I can’t put a swimming pool size battery under my house. I don’t care what the energy density is, make it bulletproof and cheap and massive.