The post you're replying to didn't explain it well, but: LFP batteries don't use cobalt (or nickel).

LFP production is starting to pass NMC (lithium + nickel manganese cobalt oxide). Slightly lower density but a lot of advantages in lack of easily catching on fire, longer lifetime -- and lack of cobalt. LFP (LiFePo4) is the battery chemistry of choice today for solar installations, where the longer lifetime and increased safety are a big win and the slightly lower density doesn't matter, unlike mobile applications.

I suppose I could have been clearer, but I figure it was an easy connection tom make from talking about chemistry to the question of whether cobalt is even relevant.