A few things I'm confused by. For one 10kw would just instantly trip a breaker wouldn't it? Standard household circuits in the US are 110v at 15 amps which is 1.6kw no? A battery could make up the difference but it would either be huge or only last a few seconds.

The temp measure is also a little confusing, but I'm guessing it's measuring the outer temp of the pan. That's definitely pretty good and comparable to a how an oven sets temp. I think it would actually be pretty amazing to include probes and set the temp based on the water or oil in your pot. In that case this would be functional as a sous vide cooker.