Lithium-based All-solid-state Thin-film Micro-batteries

Abstract

In the first part, the subclass of thin-film all-solid-state batteries (TFBs) is introduced from an historical point of view. Basic concepts about production and design, as proposed in literature, are reported. In the second part, the main materials for cathodes and anodes are described. After a bibliographical review of the main materials, the physics behind solid-state electrochemistry is briefly introduced, including how intercalation works and the differences between thin-film configuration and composite electrodes. The third section is dedicated to solid-state electrolytes, chemistry and physics, with a quick review of the main materials and lithium dendrite formation is discussed as well. The final section is a review of the anode-free configuration and its advantages and drawbacks. A subsection is dedicated to reviewing the plating and stripping of lithium on metal collectors.