Comment by sagarm
4 months ago
Sodium batteries have significantly lower round-trip efficiency, so they have to be cheaper to win against LFP.
4 months ago
Sodium batteries have significantly lower round-trip efficiency, so they have to be cheaper to win against LFP.
That's because of the huge range of voltages in the charge curve - resistive losses in wiring scale with the square of current. When the voltage drops, the current needs to increase for the same power.
If you can accept low power/current output (which EVs cant, but homes can), this isn't so bad.