Abstract
A lithium iron chloride inverse spinel was prepared to examine the electrochemical Li + deintercalation from the chloride spinel in an all-solid state cell. While the chloride spinel has a high ionicity, it was confirmed that Li ions could be extracted from the structure without dissolving with a potential of 3.6 V vs. Li/Li +. Powder X-ray diffraction of the material showed coexistence of two kinds of spinels with different lattice constants. Mössbauer spectra revealed that the deintercalation of Li + was accompanied with the oxidation of iron from Fe 2+ to Fe 3+. The amount of deintercalated lithium estimated from the electrical capacity showed large value of 1.2 per formula unit, which indicates both Li + in 8a and 16d sites were deintercalated.
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