Fast Li-circle plus conducting ceramic electrolytes

The all-solid, lithium rechargeable battery, which if available would find many applications, is one reason for carrying out research into Li+-conducting solids. Fast Li+-conducting ceramic electrolytes are reviewed with regard to their electrical properties and crystal structure. Both non-oxide based ceramics and oxide materials are considered, and possibilities for further developments-e.g., the preparation of the electrolyte by thin him techniques-are pointed out.