The https://en.wikipedia.org/wiki/Rocket_Lab_Electron has them and made it to orbit
Its doable if you throw batteries out of your second stage when flying.
But no company that makes a rocket payload then maybe a few 100kg would ever use them. And for sure not launch humans or go to Mars.
Even if you assume gigantic improvements in batteries by 400% you wouldn't use if for anything major.
It has potential for in space applications as there you can charge it with sunlight.
Its doable if you throw batteries out of your second stage when flying.
But no company that makes a rocket payload then maybe a few 100kg would ever use them. And for sure not launch humans or go to Mars.
Even if you assume gigantic improvements in batteries by 400% you wouldn't use if for anything major.
It has potential for in space applications as there you can charge it with sunlight.