Processing combustion synthesized Mg0.5Zr2(PO4)3 nanopowders to thin films as potential solid electrolytes

Saiyue Liu; Chang Zhou; You Wang; Eongyu Yi; Weimin Wang; John Kieffer; Richard M. Laine

Electrochemistry Communications (Jul 2020)

Processing combustion synthesized Mg0.5Zr2(PO4)3 nanopowders to thin films as potential solid electrolytes

Saiyue Liu,
Chang Zhou,
You Wang,
Eongyu Yi,
Weimin Wang,
John Kieffer,
Richard M. Laine

Affiliations

Saiyue Liu: School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
Chang Zhou: School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China; Corresponding authors at: School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China.
You Wang: School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China; Corresponding authors at: School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China.
Eongyu Yi: Dept. of Materials Science and Eng., University of Michigan, Ann Arbor, MI 48109-2136, USA
Weimin Wang: Dept. of Materials Science and Eng., University of Michigan, Ann Arbor, MI 48109-2136, USA
John Kieffer: Dept. of Materials Science and Eng., University of Michigan, Ann Arbor, MI 48109-2136, USA
Richard M. Laine: School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China; Dept. of Materials Science and Eng., University of Michigan, Ann Arbor, MI 48109-2136, USA; Corresponding authors at: School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China.

Journal volume & issue: Vol. 116
p. 106753

Abstract

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Mg0.5Zr2(PO4)3 is a promising electrolyte for Mg solid-state batteries. But it is difficult to achieve high-density thin films with phase purity. Here, we synthesized Mg0.5(1+x)FexZr2−x(PO4)3 nanopowders using liquid-feed flame spray pyrolysis and used the product to form transparent thin films via simple pressureless sintering at 1100 °C. The influence of Fe on the phase and microstructure were discussed and the bottlenecks during Mg2+ conduction pathway were calculated. The dense and high-purity Mg0.6Fe0.2Zr1.8(PO4)3 exhibited an extremely low ionic area specific resistance of 1.6 kΩ cm2 at 200 °C. This paper presents a method for preparing dense, high-purity solid electrolytes at modest sintering temperatures.

Published in Electrochemistry Communications

ISSN: 1388-2481 (Print); 1873-1902 (Online)
Publisher: Elsevier
Country of publisher: United States
LCC subjects: Technology: Chemical technology: Industrial electrochemistry; Science: Chemistry
Website: https://www.journals.elsevier.com/electrochemistry-communications

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