The "filler effect": A study of solid oxide fillers with β-Li3PS4 for lithium conducting electrolytes

Zachary D. Hood; Hui Wang; Yunchao Li; Amaresh Samuthira Pandian; M. Parans Paranthaman; Chengdu Liang

doi:10.1016/j.ssi.2015.10.014

The "filler effect": A study of solid oxide fillers with β-Li₃PS₄ for lithium conducting electrolytes

Zachary D. Hood, Hui Wang, Yunchao Li, Amaresh Samuthira Pandian, M. Parans Paranthaman, Chengdu Liang

Nanomaterials Chemistry Group

Research output: Contribution to journal › Article › peer-review

49 Scopus citations

Abstract

Solid electrolytes are the subject of intense study partly because of their use in safer, high energy density, all-solid-state lithium-ion batteries. The addition of solid oxide fillers has been previously explored as a way to increase the ionic conductivity in composite electrolytes; however, no comparative study of the effect of both ion-conducting and non-conducting oxides on solid lithium superionic conductor electrolyte is reported. Nano-crystalline β-Li₃PS₄ (LPS) was recently shown to have anomalous high ionic conductivity, but it was found that this property can be further enhanced. This study examines the effect of three solid oxide fillers (Li₆ZnNb₄O₁₄, Al₂O₃, and SiO₂) in composites with LPS for the enhancement of the parent electrolyte. The electrolytes' processability, ionic conductivity, activation energy, and stability against metallic lithium are presented to gain a complete understanding on the effect of solid oxide fillers on LPS while elucidating the significant enhancement of LPS through the addition of Li₆ZnNb₄O₁₄ or Al₂O₃.

Original language	English
Pages (from-to)	75-80
Number of pages	6
Journal	Solid State Ionics
Volume	283
DOIs	https://doi.org/10.1016/j.ssi.2015.10.014
State	Published - Dec 15 2015

Funding

The work was supported by the U.S. Department of Energy, Office of Science, Materials Sciences and Engineering Division . The synthesis and characterization of composite materials were completed at the Center for Nanophase Materials Science, which is sponsored by the Division of Scientific User Facilities Division, U.S. DOE . Zachary D. Hood was supported by Higher Education Research Experiences (HERE) at Oak Ridge National Laboratory . This material is also based upon work supported by the National Science Foundation Graduate Research Fellowship under Grant No. DGE-1148903 . Any opinion, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. This manuscript has been authored by a contractor of the U.S. Government under contract DE-AC05-00OR22725. Accordingly, the U.S. Government retains a paid-up, nonexclusive, irrevocable, worldwide license to publish or reproduce the published form of this contribution, prepare derivative works, distribute copies to the public, and perform publicly and display publicly, or allow others to do so, for U.S. Government purposes.

Keywords

Composite electrolyte
Ionic conductivity
Lithium thiophosphate
Lithium-sulfur battery
Solid electrolyte

Access to Document

10.1016/j.ssi.2015.10.014

Cite this

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abstract = "Solid electrolytes are the subject of intense study partly because of their use in safer, high energy density, all-solid-state lithium-ion batteries. The addition of solid oxide fillers has been previously explored as a way to increase the ionic conductivity in composite electrolytes; however, no comparative study of the effect of both ion-conducting and non-conducting oxides on solid lithium superionic conductor electrolyte is reported. Nano-crystalline β-Li3PS4 (LPS) was recently shown to have anomalous high ionic conductivity, but it was found that this property can be further enhanced. This study examines the effect of three solid oxide fillers (Li6ZnNb4O14, Al2O3, and SiO2) in composites with LPS for the enhancement of the parent electrolyte. The electrolytes' processability, ionic conductivity, activation energy, and stability against metallic lithium are presented to gain a complete understanding on the effect of solid oxide fillers on LPS while elucidating the significant enhancement of LPS through the addition of Li6ZnNb4O14 or Al2O3.",

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