Ehhhh battery tech has been advancing quite a bit lately as we (thankfully) move away from lithium-based batteries. Grid-scale installations use a variety of battery tech these days with constant improvements being made to them. Liquid metal batteries, salt batteries, flow batteries, etc there are a lot of new options being used and developed.

On the more consumer-focused end of things, LFP batteries have surged in popularity due to their lower cost, higher reliability, and longer life. NMC batteries are also sued in some EVs. We probably won't see a replacement to lithium ion cells for consumer electronics for a while because their power density per size/weight is so good but R&D is still making progress with alternative technologies.

we're not using all the same battery tech today. there's sodium ion batteries which are widespread in china already today. the west is just lagging behind (again)