Lithium Rocking Chair Batteries: An Old Concept?

In recent years consistent attention has been devoted to novel types of lithium rechargeable batteries in which the metal anode is replaced by a lithium-source anode. The general interest in these batteries, often called rocking-chair batteries, has increased consistently; however, the idea of exploiting the rocking lithium systems for achieving improvements in safety and cycle life is not new, but dates back to the beginning of the eighties