What is a solid state electrolyte?

A solid state electrolyte is a type of electrolyte material used in batteries and other electrochemical devices, where the ionic conductor is in a solid phase instead of a liquid. These materials allow ions to move between the electrodes, enabling the flow of electricity, while also offering improved safety, stability, and energy density compared to liquid electrolytes. Solid state electrolytes are commonly used in advanced lithium-ion batteries, solid-state batteries, and next-generation energy storage systems.