Climate & Environment
Solid-State Battery
A battery replacing liquid electrolyte with a solid — promising safer, denser energy storage for electric vehicles.
Definition
A solid-state battery replaces the flammable liquid electrolyte of conventional lithium-ion cells with a solid electrolyte (ceramic, sulphide or polymer), enabling lithium-metal anodes and potentially much higher energy density, faster charging, improved safety and longer life. Major manufacturers have announced commercialisation targets in the late 2020s, with prototypes demonstrated but manufacturing yield, cost and interface stability remaining the key hurdles.
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