As do fuel cells and H2 tanks - H2 is quite aggressive to the materials. But most importantly, the charge-discharge cycle of a battery is about 90% efficient, which beats hydrogen easily. And with quickly dropping battery prices they even become feasible for large-scale storage, see the Australian battery built by Tesla.

It mentions this in the article Li-ion go have a life cycle of roughly 1,000 recharges whereas these have 10,000.