Battery

Solid-state battery

A solid-state battery uses a solid electrolyte instead of the liquid or gel electrolyte found in conventional lithium-ion cells. The term covers several possible solid-electrolyte materials and cell architectures. Research programmes are pursuing higher energy density, improved safety and faster charging, but performance depends on the specific chemistry and cell design. Those benefits should not be treated as guaranteed characteristics of every solid-state battery. Solid-state technology is moving through development and manufacturing scale-up. The glossary should therefore avoid fixed commercialisation dates or performance claims tied to one prototype.