Novel calcium ion conducting solid electrolyte with NASICON-type structure
November 10-14, 2019
Divalent calcium ion conducting solid electrolyte with a three dimensional NASICON-type structure, (CaxHf1−x)4/(4−2x)Nb(PO4)31,was successfully prepared by introducing Ca2+ cations into the HfNb(PO4)3 solid. The existence of three kinds of high valence cation of Hf4+, Nb5+, and P5+ successfully realized the effective reduction of electrostatic interaction toward Ca2+ in the structure. The (Ca0.05Hf0.95)4/3.9Nb(PO4)3 solid possesses considerably higher Ca2+ cation conductivity and also lower activation energy compared with those of previously reported NASICON-type Ca0.5Zr2(PO4)32 solid.
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Nobuhito Imanaka, "Novel calcium ion conducting solid electrolyte with NASICON-type structure" in "Composites at Lake Louise 2019", John Kieffer, University of Michigan, USA Erik Spoeke, Sandia National Laboratories, USA Meisha Shofner, Georgia Institution of Technology, USA Eds, ECI Symposium Series, (2019). https://dc.engconfintl.org/composites_all_2019/55