(The full text of the paper is available for free at https://onlinelibrary.wiley.com/doi/10.1002/adma.202206828)
https://www.mdpi.com/1996-1073/13/13/3307
A new scientific development can be cool, but it won't directly reduce costs, since it's not actually an industrial process. A lower operating temperature might simplify construction. But all that remains to be seen.
EDIT: if you read the original paper in TFA you will find that molybdenum, an extremely rare metal, is key to the cathode, though only at 1.2% by weight. Interpretation unclear.
There are few articles on 'consumer sized' 18650 sodium-ion (Na-S, Na-ion) battery (aka NIB):
October 2019: Developing O3 type layered oxide cathode and its application in 18650 commercial type Na-ion batteries[0]
May 2022: First 18650-format Na-ion cells aging investigation: A degradation mechanism study[1]
August 2022: Remaining useful life prediction for 18650 sodium-ion batteries based on incremental capacity analysis[2]
[0] https://www.researchgate.net/publication/336562138_Developin...
[1] https://www.researchgate.net/publication/359078973_First_186...
[2] https://www.researchgate.net/publication/362754837_Remaining...