That's one problem. But I'm aware that CO2 is not the ONLY danger to the environment. Hopefully you are also aware of that and can discuss the topic beyond only CO2. We obviously wouldn't replace CO2 with methane, right? So let's talk about the environment, not just CO2.
>Mining lithium doesn't require gasoline.
Name one mine that doesn't use gasoline to mine, haul, store, or transport. Good luck.
>The radioactive products decay on short time scale.
At least 3% of the waste from any reactor is extremely harmful for many thousands of years. The other 97% is irrelevant. Why did you bring it up? Seems dishonest.
Citation: https://www.world-nuclear.org/information-library/nuclear-fu...
>Lithium batteries aren't a problem if they did decay.
Sure if you manage to keep them all really far away from each other. High concentrations of anything is a problem. Even a basic Wikipedia search can help you here. Leaked evaporation pools, water contamination, huge amounts of water usage in production, etc.
https://en.m.wikipedia.org/wiki/Environmental_impacts_of_lit...
Go ahead and keep downvoting. Each downvote proves exactly what I'm saying; it's unacceptable to even discuss better solutions.