Comment Re:Yay to the abolition of lithium slavery! (Score 1) 135
Sounds good, let's see it IRL. How much usable energy per unit of battery weight?
Don't know about weight, but you can buy 18650 cells using Na-Ion right now. They have the power capacity and curves of LiFePO4 cells at the moment.
The key part is that we have tons of sodium, unlike lithium, and a lot of it is already in ion form. Earth's lithium supplies are limited, while sodium supplies are basically limitless, and thus, it's stupidly cheap and unlikely to rise due to its abundance.
Sodium batteries are very similar to lithium, since it's in the same group (one row down) so the properties are similar. Hopefully that means enhanced sodium cells are soon as they apply the advancements made to lithium batteries to sodium batteries.
But you can apparently play with them today. A video on a YouTuber playing with them - https://youtu.be/s6zcI1GrkK4