Abstract
Results are presented for discharge processes of lithium electrochemical cells containing layered chalcogenide materials. Systematic and precise studies of the voltage-composition relation were made of lithium insertion in InSe, In 2Se 3, MoS 2, TiS 2 and NiPS 3. The stability of the intercalated phases is discussed on the basis of electrochemical potential spectroscopy measurements, and the inverse derivative composition-voltage is analysed using the lattice gas model. Using galvanostatic experiments, the chemical diffusion coefficient D(x) and the Darken factor K 1(x) of the solid solution electrodes are determined.
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