Solid-state batteries

Solid-state batteries replace the liquid electrolyte that carries lithium ions with a ceramic or polymer, which should allow faster charging, longer life and less fire risk. The catch is dendrites, needle-like lithium growths that can crack the ceramic and short the cell, plus hard manufacturing. QuantumScape says it can now heat-treat its ceramic electrolyte in minutes instead of days.

Summary written with AI by HowTechMoves, based on reporting by MIT Technology Review.