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Sodium-ion "salt" batteries will revolutionize electric-vehicle and grid storage

newscientist.com

41–50 of 63 posts

Re: Sodium-ion "salt" batteries will revolutionize electric-vehicle and grid storage

#41

Earlier quoted context omitted.

Regulations... in THIS economy and administration????

Well, the EU regulated USB-C and it affected the whole smartphones world.

Nobody liked micro B anyways... and then there's Apple with their lightning port...

Re: Sodium-ion "salt" batteries will revolutionize electric-vehicle and grid storage

#42
post #13

Earlier quoted context omitted.

It's not just vehicles. Battery fires from electric bikes and scooters have also caused issues. And currently you can't put a battery pack into plane hold luggage because of fire risks.

How much more likely are you to be injured on an eBike vs. getting run over on a Schwinn, though? Have you ever been afraid of the bike? The presence of a different failure mode isn't the question at issue. Yes, they're new tech and require new techniques. Duh, as it were. It's your abject and frankly irrational paranoia that I'm calling out. Chill the fuck out, as it were. Moving things have always been dangerous, a…

>How much more likely are you to be injured on an eBike vs. getting run over on a Schwinn, though? Have you ever been afraid of the bike?

Many rightly are.

Re: Sodium-ion "salt" batteries will revolutionize electric-vehicle and grid storage

#43
post #21

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.

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.

I could imagine plants messing with it, unless you bury it really deep.

Re: Sodium-ion "salt" batteries will revolutionize electric-vehicle and grid storage

#44

It is time to standardize EV batteries like wheels: 5-10 mainstream types & competition on quality vs. price vs. range. Regulator help is needed here.

Largest Chinese companies will define the standards.

Re: Sodium-ion "salt" batteries will revolutionize electric-vehicle and grid storage

#45
post #6
post #3

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?

You seem to be turning this into a discussion of vehicles, but the post you're replying to was purely about batteries. I get it - ICE cars suck. But speaking for myself, I waited until I could get LFP batteries before adding a lot of lithium to my house. I deemed the fire risk of NMC not worth the benefits. I now have about 15kWh of LFP and I'm happy as a clam.

Re: Sodium-ion "salt" batteries will revolutionize electric-vehicle and grid storage

#46

I think it is weird that the recent breakthroughs in sodium batteries have come from China; I would have assumed they would want to keep everyone reliant on their rare earth minerals.

Not correct. Sodium-ion batteries were invented in the United States in the 1970s.

I didn’t say invented - I said recent breakthroughs.

Re: Sodium-ion "salt" batteries will revolutionize electric-vehicle and grid storage

#47

It is time to standardize EV batteries like wheels: 5-10 mainstream types & competition on quality vs. price vs. range. Regulator help is needed here.

Historically, vehicles actually did have completely interchangable motive components. They were called horses.

It would have been difficult given the state of other technology at the time for the inventors of the internal combustion engine to have supplied it as a drop-in horse replacement for your carriage, but you could kind of imagine that working with current technology.

Re: Sodium-ion "salt" batteries will revolutionize electric-vehicle and grid storage

#48
post #22
post #6

Earlier quoted context omitted.

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?

Ask your local fire department about putting fires out in battery-powered cars versus gasoline cars. Yes, there is a qualitative difference and it's not in favor of the battery-powered cars. That's not to say that it's a stopper for them; it's just part of the cost/benefits analysis. The idea of technologies that are better on all parts of the cost/benefit analysis at once is a science fiction or video game concept.…

If I'm not mistaken, a lithium battery grid-level energy storage firefighting protocol is "evacuate people and let it burn."

Re: Sodium-ion "salt" batteries will revolutionize electric-vehicle and grid storage

#49

Something to be aware of, and this is still in flux as the market is so new, but when sodium-ion batteries that use Prussian Blue/Prussian white cathodes enter thermal-runaway (or catch fire for whatever other reason), they release hydrogen cyanide gas. 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 float…

well, this doesn't sound good.

what cathode material is used as an alternative to not make home battery a chemical weapon in disguise?

Re: Sodium-ion "salt" batteries will revolutionize electric-vehicle and grid storage

#50
post #33

Earlier quoted context omitted.

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…

like LiFePo4, sodium-ion also won't burn 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?

I hadn't considered that aspect. Maybe sodium will see applications for hybrid diesel trains, medium haul trucks.
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