CATL 175 whrs/kg sodium ion now ready for mass production

[BatteryMooch]

It's not huge obviously, but like silicon, it's enough to curve the voltage downward.

Thanks for the link, will look it over.
All depends on the cathode though. Some chemistries make that 0.1V-0.2V difference between Gr and hard carbon pretty inconsequential. But I get what you‘re talking about and it will be interesting to see what ends up being fully commercialized (what really matters IMO) and that we can buy.