Plasma Synthesis of Spherical Crystalline and Amorphous Electrolyte Nanopowders for Solid-State Batteries

Andrew S. Westover, Andrew K. Kercher, Mordechai Kornbluth, Michael Naguib, Max J. Palmer, David A. Cullen, Nancy J. Dudney

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

Here, we demonstrate the theory-guided plasma synthesis of high purity nanocrystalline Li3.5Si0.5P0.5O4 and fully amorphous Li2.7Si0.7P0.3O3.17N0.22. The synthesis involves the injection of single or mixed phase precursors directly into a plasma torch. As the material exits the plasma torch, it is quenched into spherical nanocrystalline or amorphous nanopowders. This process has virtually zero Li loss and allows for the inclusion of N, which is not accessible with traditional synthesis methods. We further demonstrate the ability to sinter the crystalline nanopowder into a dense electrolyte membrane at 800 °C, well below the traditional 1000 °C required for a conventional Li3.5Si0.5P0.5O4 powder.

Original languageEnglish
Pages (from-to)11570-11578
Number of pages9
JournalACS Applied Materials and Interfaces
Volume12
Issue number10
DOIs
StatePublished - Mar 11 2020

Funding

The authors acknowledge the National Key Research and Development Program of China and the National Natural Science Foundation of China (NSFC) under Grant nos. 2017YFB1104600, 61935008, 61590930, 61825502, and 61775078 for support.

FundersFunder number
National Natural Science Foundation of China61935008, 2017YFB1104600, 61775078, 61590930, 61825502
National Basic Research Program of China (973 Program)

    Keywords

    • LiSiPON
    • Lipon
    • additive manufacturing
    • inductive plasma torch
    • nanopowders
    • solid-state battery
    • solid-state electrolyte

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