Abstract
Ag 1+ x V 3O 8 has been prepared by the ion exchange reaction in the molten salt of AgNO 3 using Na 1.2V 3O 8. This oxide has a similar layer structure to M 1+ x V 3O 8 (M=Li and Na), and its lattice parameter has been determined. Up to four moles of lithium ( x=4) in Li x Ag 1.2V 3O 8 are accommodated electrochemically. The discharge process showed that after deposition of metallic silver by reduction of Ag(I) prior to V(V) and simultaneous occupation of the octahedral site by inserted Li(I), additional lithium was inserted into Li 1.2V 3O 8. The charging process showed extraction of three lithiums from Li 4V 3O 8 and no return of the silver element back to the original structure with oxidation.
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