Chemical modification as a perspective method of synthesis of new Li-containing tungsten phosphate bronzes

摘要

Monophosphate tungsten bronze, with pentagonal channels Lix(PO2)(WO3)2m is first synthesized by lithium chemical intercalation and has been studied by both electron microanalysis and X-ray diffraction. An electrochemical cell of type Li / (1 M) LiClO_4 in propylene carbonate / Li_2P_4W_8O_(32) (-) is used for testing the charge-discharge properties. A concentration shift for the binding energy of the Li 1s electron is determined using X-ray photoelectron spectroscopy. It is shown that the elaborated material is perspective for ionic cell batteries.