Why your iPhone isn't powered by a solid-state battery yet - even though it beats lithium-ion

The article outlines why solid-state batteries, despite promising higher energy density, faster charging, improved safety, and longer lifespans than lithium-ion, are not yet widespread: the supply chain is immature, manufacturing is more complex with low yields, the cells are sensitive to vibration and swelling, and current costs are 4–8x higher; with lithium-ion already performing well, industry expectations place true large-scale solid-state production in the early 2030s, after which broader adoption may follow.