Video: Polymer Electrolytes for Solid State Lithium Metal Batteries

Integrating a lithium-metal anode and a high-voltage cathode into a solid-state battery remains a formidable challenge, especially when the battery is charged beyond 4V. Most electrolytes genuinely do not possess such a wide electrochemical stability window, but have to rely on the formation of a passivating solid electrolyte interphase, require protective electrode coatings, or have to be combined with a secondary electrolyte to achieve stable dis-/charge cycling, adding complexity.