If a company is claiming that their lab results are better than the current literature, tell them to send me a battery. I would love to see it! I'm tired of endlessly being bombarded with battery tech "breakthroughs". If I can't get it into my workshop today, then it doesn't exist.

I also forgot the biggest drawback, the price! They are incredibly expensive. Doesnt negate any of the other issues if it was cheaper regardless.