There are materials that can store even more lithium than silicon; a notable example is sulfur ... All it took was a solid electrolyte that was more reactive than the sulfur itself.

While lithium-ion batteries continue to improve in terms of both performance and cost, interest in solid-state batteries, which promise better energy density and safety, has not waned.

Add a description, image, and links to the solid-principles-examples topic page so that developers can more easily learn about it.