Maybe, but I want to see Uranium batteries go mainstream, how 'bout U?

I was hoping science would've gotten us to a tri lanthanside by now https://youtu.be/D8fHatctfRo

You're right, they were making a pun about sodium's chemical symbol.

The advantage of Sodium -Ion is that it's cheap, abundant, safe, and can cycle. It's mainly used where large capacities are needed. So industrial, grid scale, stationary types of storage.

And loads of charge cycles IIRC.

It's significantly less dense.

I have a surprise for you...

Sodium is just what those weirdos call Naatrium.

It's the maintenance period on lots of infrastructure.

What it means isnthe private investors are more likely to bid to build power storage infrastructure for governments because it's less likely they'll ever have to change out the cells during the contract.

On the flip side, governments would kinda like them to work for 25 years so they'll go 50 years without having to buy new cells.

idk about that, the regularly cited reason Na-ion batteries are mainly being looked at for grid storage rather than vehicle applications is their bad Wh/l and W/kg numbers compared to Li-ion. the table in the Na-ion article seems to use "1000W/kg" without a source, and it shows lithium as being about a third of that even though the Li-ion article quotes figures up to 10kW/kg.

seems the editors of the two articles aren't cross-checking eachother.

No, the energy to volume is much less.

72173207 (terrible name)

That's my daughter's name. It was my great grandmother's name.

If only my other electronics operated at 104% efficiency.

It's the world's worst ZPM

Ah what the heck after the 5th time reloading it did work lol

To be fair, solid state batteries went from being a pipe dream, to being only possible in perfect laboratory settings, to the current state of very real and possible -just expensive. And it has done all of this in about a decade. Just give it time.

1 C is defined relative to 1 hour for full discharge and 3 C means a 3x faster discharge rate (full capacity can safely be discharged in 1/3 hour, or you can discharge 3 cells sequentially in an hour). Good lithium cells tend to be above 5C, can reach 10C for peak load or if cooled.

For a large enough battery it doesn't really matter, but for dense portable ones a lower C rating means you have to discharge from more cells simultaneously to maintain a given output. That makes it more complicated, and you have less headroom to the battery's maximum Watt output if you need to accelerate a car hard suddenly.

Kind of, yes. But more importantly, it also means it can only push enough power to run at 3c. And that's probably not for the full charge of the battery.

So a 100 amp hour battery rated at 3c can push out 300 amps. Which also means that if the grid needs a short spike in power, it might be limited.

It shouldn't be too hard to get a 15c LiPo battery, which could push 5x as much energy at peak demand.

You'd probably kill the battery if you charged it from 0-100 at 15c, but for short bursts of charging and discharging, it should handle it just fine.

i think the big issue is asymmetry. they charge at 3C, but they discharge at 8C. so you need the significantly overbuild.

Ambri had a massive molten salt battery that was cheap for grid storage. They went broke. Sadoway gave a great lecture on how actual solutions are fighting corruption and old money.

While I get that this is the narrative, people are overstating this case. High end sodium batteries have a similar energy density range to lower end lithium batteries (~150-175 wh/kg). This idea that people wouldn't buy a battery that is cheaper, safer, and has a much longer cycle life if it weighs a bit more or only runs 80% as long between the faster charges is puzzling at best.