ECI Digital Archives

Title

Novel calcium ion conducting solid electrolyte with NASICON-type structure

Authors

Nobuhito Imanaka, Osaka University, JapanFollow

Conference Dates

November 10-14, 2019

Abstract

Divalent calcium ion conducting solid electrolyte with a three dimensional NASICON-type structure, (Ca_xHf_1−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 (Ca_0.05Hf_0.95)_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 Ca_0.5Zr₂(PO₄)₃² solid.

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Recommended Citation

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