Wrong. Again. You wanted a cheap battery that’s not lithium.
Now you want a Ferrari for the price of Corolla.
You will never be satisfied because admitting that you're wrong hurts.
New cathode material for sodium-ion batteries is inspired by earlier work at Argonne that led to the lithium-ion batteries in the Chevy Volt and Bolt. It could help the supply of low-cost and abundant elements for electric vehicle batteries.
techxplore.com
From your link:
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"There is one catch to this wonder battery," noted Johnson. "Sodium metal is about three times heavier than lithium, and that adds considerably to the battery weight." The additional weight also translates into a shorter driving range.
To date, this shortcoming has hindered sodium-ion batteries from making inroads into the electric vehicle market. Compared with other sodium-ion technology, however, the team's cathode has much higher energy density, enough to power electric vehicles for a driving range of about 180-200 miles on a single charge.
Johnson emphasized that while the sodium-ion battery might not appeal to those seeking long driving ranges, it could attract budget-conscious consumers, particularly urban dwellers whose daily driving rarely exceeds this distance.
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To make a full size auto or SUV having longer range with these sodium-ion batteries, the tech is farther out, and more expensive.
It's why their only focusing now on the VERY small budget commuter car in China at this point.
Promising start, but a long ways to go in the labs, where most of the newer battery technology is still trying to get out of.
Toyota has dozens of patents on solid-state battery tech, and had promised EV's with them on the market by now, and a few years back. But due to manufacturing issues/realities and other setbacks in cost and production, they've pushed releases out to late 2020's if not early 2030's at best. And that's a big if, when trusting previous promises.
You would think Toyota knows something about EV's after having the most famous hybrids for years.