MECHANISM OF ION-EXCHANGE IN ZIRCONIUM-PHOSPHATES .17. DEHYDRATION BEHAVIOR OF LITHIUM ION-EXCHANGED PHASES
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The phases formed by the dehydration of lithium exchanged -zirconium phosphate, Zr(HPO4)H2O, were determined by a combination of X-ray, TGA and DTA studies. Samples containing 10, 20, 30 ... 100% of theoretical lithium ion capacity were examined. The data are summarized in a phase diagram which however is not an equilibrium diagram because of the slowness of approach to equilibrium. The numerous phases obtained and the ease with which they rearrange indicates a high mobility for the incorporated cations. This suggested that -zirconium phosphate may behave as a solid electrolyte and indeed this was demonstrated by having it serve in that capacity in a small sodium sulfur battery. 1977.