For most of the past decade the EV conversation was a conversation about scarcity. Range was scarce, charging was scarce, affordable models were scarce, and the materials inside the battery were scarcest of all. Today's five stories each take aim at a different one of those shortages, and the cheapest item on the list turns out to be the most revealing.

Two of them go after the periodic table. GM and Peak Energy showed a grid battery built on sodium-ion, a chemistry whose raw material is essentially table salt, cooled by nothing more than rising heat. CATL, meanwhile, is openly researching lithium-air cells that pull part of their reaction straight out of the surrounding air. Both are bets that the next constraint to fall is the cost and supply of what goes inside the pack.

The third story attacks the grid itself. Coral Charge's off-grid solar station on Route 66 skips the utility hookup entirely, trading a multi-year wait for power lines for sunlight and a buffer battery. And then there is the payoff. A three-year-old Hyundai IONIQ 6 changed hands for about $21,000, an 800-volt car charging past 200 kW, made affordable not by a clever new model but by ordinary depreciation. Affordability, it turns out, arrived through the used lot.

Rivian is the counterweight in the set. In his Masters of Scale interview, RJ Scaringe is still spending heavily to own the hard parts, the software and now the robotics, because the scarcity he keeps naming is not materials or grid access but choice. Over the next six months, the metric worth tracking is not range. It is how quickly the materials shift and the used market compound, because those two move buyers faster than any spec reveal. The headline-grabbers, lithium-air and the next big density figure, are years out; the changes that actually reach driveways this year are quieter, a salt-based grid cell here, a solar canopy there, a depreciated sedan that charges like a flagship.

Bottom line: The defining EV number used to be miles of range. It is quietly becoming dollars per used car. The lithium-air headline will get the clicks, but the $21,000 IONIQ 6 is the story ordinary buyers will feel first, and it got there with no breakthrough at all.