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Title: Correlation of anisotropy and directional conduction in β-Li3PS4 fast Li+ conductor

Journal Article · · Applied Physics Letters
DOI: https://doi.org/10.1063/1.4926725 · OSTI ID:1193190

Our letter reports the correlation of anisotropy and directional conduction in the fast Li+ conductor β-Li3PS4, one of the low-symmetry crystalline electrolyte candidates. The material has both high conductivity and good stability that serves well for the large-scale energy storage applications of all-solid-state lithium ion batteries. The anisotropic physical properties, demonstrated here by the thermal expansion coefficients, are crucial for compatibility in the solid-state system and battery performance. Neutron and X-ray powder diffraction measurements were done to determine the crystal structure and thermal stability. Moreover, the crystallographic b-axis was revealed as a fast expansion direction, while negligible thermal expansion was observed along the a-axis around the battery operating temperatures. The anisotropic behavior has its structural origin from the Li+ conduction channels with incomplete Li occupancy and a flexible connection of LiS4 and PS4 tetrahedra within the framework. This indicates a strong correlation in the direction of the ionic transport in the low-symmetry Li+ conductor.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS); High Flux Isotope Reactor (HFIR); Spallation Neutron Source
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1193190
Journal Information:
Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 1 Vol. 107; ISSN 0003-6951; ISSN APPLAB
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

References (26)

New, Highly Ion-Conductive Crystals Precipitated from Li2S-P2S5 Glasses journal April 2005
Residual Stress and Biaxial Strength in Sc 2 O 3 -CeO 2 -ZrO 2 /Y 2 O 3 -ZrO 2 Layered Electrolytes journal September 2013
The high-resolution powder diffractometer at the high flux isotope reactor journal March 2010
Ionic conductivity of and phase transition in lithium thiophosphate Li3PS4 journal November 1984
Anisotropic thermal expansion of MgSiN 2 from 10 to 300 K as measured by neutron diffraction journal August 2000
Lithium ion conductivity of A-site deficient perovskite solid solutions journal September 1999
A search for temperature induced time-dependent structural transitions in 10 mol%Sc2O3–1 mol%CeO2–ZrO2 and 8 mol%Y2O3–ZrO2 electrolyte ceramics journal March 2015
In-situ neutron diffraction study of the xLi2MnO3·(1 − x)LiMO2 (x = 0, 0.5; M = Ni, Mn, Co) layered oxide compounds during electrochemical cycling journal October 2013
Crystal structure, phase transition and anisotropic thermal expansion of barium zirconium diorthophosphate, BaZr(PO4)2 journal June 2005
Synthesis, crystal structure and thermal behavior of Sr3B2SiO8 borosilicate journal October 2010
Crystal structure and phase transitions of the lithium ionic conductor Li3PS4 journal February 2011
Compounds That Contract on Heating journal June 1998
Anomalous High Ionic Conductivity of Nanoporous β-Li3PS4 journal January 2013
A lithium superionic conductor journal July 2011
Visualizing the chemistry and structure dynamics in lithium-ion batteries by in-situ neutron diffraction journal October 2012
Air-stable, high-conduction solid electrolytes of arsenic-substituted Li 4 SnS 4 journal January 2014
A high-conduction Ge substituted Li 3 AsS 4 solid electrolyte with exceptional low activation energy journal January 2014
Temperature dependent structural properties of nanocrystalline SnS structures journal December 2009
Ionic conductivity in Li 3 N single crystals journal June 1977
Anisotropic thermal expansion of layered MoO 3 crystals journal February 2004
EXPGUI , a graphical user interface for GSAS journal April 2001
Structure du tetrathiophosphate de lithium journal July 1982
Thermal Expansion Behavior of NaZr2(PO4)3Type Compounds journal January 1986
The A-C Conductivity of Polycrystalline LISICON, Li[sub 2+2x]Zn[sub 1−x]GeO[sub 4], and a Model for Intergranular Constriction Resistances journal January 1983
Crystal Structure of Fast Lithium-ion-conducting Cubic Li 7 La 3 Zr 2 O 12 journal January 2011
Thermal behavior of realgar As4S4, and of arsenolite As2O3 and non-stoichiometric As8S8+x crystals produced from As4S4 melt recrystallization journal August 2012

Cited By (4)

Analysis of Diffusion in Solid-State Electrolytes through MD Simulations, Improvement of the Li-Ion Conductivity in β-Li 3 PS 4 as an Example journal June 2018
An Air-Stable Na 3 SbS 4 Superionic Conductor Prepared by a Rapid and Economic Synthetic Procedure journal June 2016
An Air-Stable Na 3 SbS 4 Superionic Conductor Prepared by a Rapid and Economic Synthetic Procedure journal June 2016
Oxygen-driven transition from two-dimensional to three-dimensional transport behaviour in β-Li 3 PS 4 electrolyte journal January 2016

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