Carbon capture system turns CO2 into electricity and hydrogen fuel

From paper - this rechargeable battery uses sodium and co2 during discharge, creating baking soda and releasing hydrogen (which can be used for anything) from water. You can recharge sodium for anode releasing oxygen and chloride (from saltwater). Also cathode is nonconsumable and doesn't clog with reactants or some other elements which could be in solution (typical problem with similar batteries). So it essentially binds CO2 in baking soda on discharge and doesn't release it on recharge. Perfect for carbon capture. Also it can run continuously, just needs changing anodes occasionally. Recharge can be in another cell or even in some factory.

“the remaining half of the CO2 was recovered from the electrolyte as plain old baking soda“

This means for every C (carbon) molecule we remove, we need one Na (sodium) molecule right?

You can't create hydrogen from CO2. That's an ugly title.

The model adds an electrolyte solution with hydrogen, and it's that hydrogen that is liberated... but the article doesn't acknowledge the depletion of the electrolyte.