Intercalation in Chalcogenides

Layered dichalcogenides, such as sulfides or selenides of Ti, Mo, W, Zr, Ta, Nb, V, and Cr, are able to dissolve certain alkali metal ions and in some cases posttransition (pseudo-alkali) metal ions (Cu, Ag ), via a mechanism in which the guest is inserted between the dichalcogenide layers. Lithium ion intercalation into TiS2, which among layered dichalcogenides has been one of the most prominent cathode 

A critical review on the foundation and earlier results on metal intercalates of the transition metal dichalcogenides and related host materials can be found in the seminal paper of Whittingham [53]. The electrochemical and transport properties 

2 Principles of the (Thin Film) Rechargeable Lithium Battery 

Main electrode features, which determine the energy density of an electrochemical storage cell, are the volumetric or specific capacity, i.e., the electric charge that electrodes can store per unit volume or weight, respectively, and the electrochemical potential they produce. Considering thermodynamic reasons, lithium, as being the most electropositive (-3.04 V vs. SHE) metal, is exceptional for use as 

State-of-the-art thin film Li cells comprise carbon-based anodes (non-graphitic or graphite), solid polymer electrolytes (such as those formed by solvent-free membranes, for example, polyethylene oxide, PEO, and a lithium salt like LiPFe or LiCFsSOs), and metal oxide based cathodes, in particular mixed or doped oxides 

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