Our battery tech is pretty impressive. However, this is also a clear example of how weak of a force gravity is, comparatively.

One simple demonstration is to look at how a small magnet can combat the gravity of the entire planet when it holds an metal object in place above the ground.

Relative to kinetic/gravity storage, yes.

Relative to combustibles such as hydrocarbons, ammonia, or hydrogen, not so much.

(It's possible to synthesize carbon-neutral hydrocarbons, though with high round-trip losses, and not yet proved at scale.)

Decades of incremental small percentage gains really adds up in overall terms.