Tech illiterate media writing hype articles. Repeats yearly also with flying cars or vacuum tube trains.

Most progress isn't made in sudden huge jumps, but small incremental improvements.

When pubsci articles promise a breakthrough, remember:

• it takes a long time to bring such research to market (think ~decade)
• most breakthroughs are only applicable to narrow niches or work under specific conditions
• real-life results will usually be worse than lab results
• startups have incentives to make their research appear as important as possible

But instead of waiting for huge breakthroughs, just look at the progress made in commercially available batteries. There have been many improvements in cost & charge density.