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Electrochemically primed functional redox mediator generator from the decomposition of solid state electrolyte

Author

Listed:
  • Matthew Li

    (Henan Normal University
    University of Waterloo
    Argonne National Laboratory)

  • Zhengyu Bai

    (Henan Normal University)

  • Yejing Li

    (University of California San Diego)

  • Lu Ma

    (Argonne National Laboratory)

  • Alvin Dai

    (Argonne National Laboratory
    Case Western Reserve University)

  • Xuefeng Wang

    (University of California San Diego)

  • Dan Luo

    (University of Waterloo)

  • Tianpin Wu

    (Argonne National Laboratory)

  • Ping Liu

    (University of California San Diego)

  • Lin Yang

    (Henan Normal University)

  • Khalil Amine

    (Argonne National Laboratory)

  • Zhongwei Chen

    (University of Waterloo)

  • Jun Lu

    (Argonne National Laboratory)

Abstract

Recent works into sulfide-type solid electrolyte materials have attracted much attention among the battery community. Specifically, the oxidative decomposition of phosphorus and sulfur based solid state electrolyte has been considered one of the main hurdles towards practical application. Here we demonstrate that this phenomenon can be leveraged when lithium thiophosphate is applied as an electrochemically “switched-on” functional redox mediator-generator for the activation of commercial bulk lithium sulfide at up to 70 wt.% lithium sulfide electrode content. X-ray adsorption near-edge spectroscopy coupled with electrochemical impedance spectroscopy and Raman indicate a catalytic effect of generated redox mediators on the first charge of lithium sulfide. In contrast to pre-solvated redox mediator species, this design decouples the lithium sulfide activation process from the constraints of low electrolyte content cell operation stemming from pre-solvated redox mediators. Reasonable performance is demonstrated at strict testing conditions.

Suggested Citation

  • Matthew Li & Zhengyu Bai & Yejing Li & Lu Ma & Alvin Dai & Xuefeng Wang & Dan Luo & Tianpin Wu & Ping Liu & Lin Yang & Khalil Amine & Zhongwei Chen & Jun Lu, 2019. "Electrochemically primed functional redox mediator generator from the decomposition of solid state electrolyte," Nature Communications, Nature, vol. 10(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-09638-4
    DOI: 10.1038/s41467-019-09638-4
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    Cited by:

    1. Yuzhao Liu & Xiangyu Meng & Zhiyu Wang & Jieshan Qiu, 2022. "Development of quasi-solid-state anode-free high-energy lithium sulfide-based batteries," Nature Communications, Nature, vol. 13(1), pages 1-11, December.

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