The article says that the metals used in lithium batteries contribute a lot to the cost, and their price probably won't come down. Nickel, manganese and cobalt make up something like 30% of the cost - I don't think VLNC uses 2 of those 3 (not to mention expensive nanoparticles)
If your read a few messages back in the thread you cited, you would see the $327 per kWH was not "a certain poster's claim" it was a figure cited in the ARTICLE YOU POSTED that was based on statements made by a NISSAN EXECUTIVE. Now you post another article citing "industry estimates" that apparently in your feeble mind disproves a claim that wasn't made by me in the first place, but was based on statements by a Nissan Executive in another article you posted.
Once again, spook can only win an argument against a straw man.
Now to discuss the actual merits of the argument. Even if the "industry estimate" of $650 per kWh is more accurate than $327 per kWh, that is still far cheaper than VLNC's batteries, and VLNC loses money selling them for far more than $650 per kWh.
Further, even in the unlikely event that VLNC were ever to generate high volume business, they will benefit from economies of scale less than any competitor. Since they don't even make their own batteries but instead have to contract for their manufacture with a real battery manufacturer, their contract manufacturer will siphon off much of an economies through their own profit.