
Are solid-state EV batteries actually arriving — should I wait to buy an EV?
ProLogium says its solid-state cell is in mass production at 381 Wh/kg, with Mercedes testing the next generation. Volumes are tiny — buy or lease on today’s needs, relevant around 2028–2030.
ProLogium says its solid-state cell is in mass production at 381 Wh/kg, with Mercedes testing the next generation. Volumes are tiny — buy or lease on today’s needs, relevant around 2028–2030.
Why 'wait for solid-state' can backfire
Solid-state batteries promise more range, faster charging, and better safety by replacing flammable liquid electrolyte with a solid layer. The problem is manufacturing: making them cheaply, at car scale, without cracks has kept them in labs and pilot lines for a decade. Meanwhile today's lithium batteries keep improving and falling in price — so waiting for a revolution can mean years of missing a perfectly good car while paying for fuel.
What to do, step by step
- Set a deadline. If your current car is reliable, waiting is cheap; if it needs repairs now, buy the best current EV and enjoy it.
- Watch for pilot-line news, not press releases. Real progress looks like a factory producing cells for actual test fleets.
- Compare on price per mile of range. When solid-state arrives, it will debut in expensive flagships, not budget cars.
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