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Title: Resolving the grain boundary and lattice impedance of hot-pressed Li7La3Zr2O12 garnet electrolytes

Journal Article · · ChemElectroChem
 [1];  [1];  [2];  [3];  [4];  [1];  [4]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
  3. U.S. Army Research Lab., Adelphi, MD (United States)
  4. Michigan State Univ., East Lansing, MI (United States)
+ Show Author Affiliations

Here, the cubic-stabilized garnet solid electrolyte with a nominal composition of Li6.28Al0.24La3Zr2O12 is thoroughly characterized by impedance spectroscopy. By varying the frequency of the applied AC signal over 11 orders of magnitude for characterizations from –100 to +60 °C, the relative contributions of grain and grain boundary conduction are unambiguously resolved.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1246769
Journal Information:
ChemElectroChem, Vol. 1, Issue 2; ISSN 2196-0216
Publisher:
ChemPubSoc EuropeCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 84 works
Citation information provided by
Web of Science

References (11)

Ionic distribution and conductivity in lithium garnet Li7La3Zr2O12 journal July 2012
The role of Al and Li concentration on the formation of cubic garnet solid electrolyte of nominal composition Li7La3Zr2O12 journal January 2012
Review on composite polymer electrolytes for lithium batteries journal July 2006
Structure and ionic conductivity in lithium garnets journal January 2010
Synthesis of garnet-type Li7−xLa3Zr2O12−1/2x and its stability in aqueous solutions journal February 2011
Schnelle Lithiumionenleitung in granatartigem Li7La3Zr2O12 journal October 2007
Compatibility of Li[sub 7]La[sub 3]Zr[sub 2]O[sub 12] Solid Electrolyte to All-Solid-State Battery Using Li Metal Anode journal January 2010
Structure and dynamics of the fast lithium ion conductor “Li7La3Zr2O12” journal January 2011
Fast Lithium Ion Conduction in Garnet-Type Li7La3Zr2O12 journal October 2007
Inorganic solid Li ion conductors: An overview journal June 2009
Crystal Chemistry and Stability of “Li7La3Zr2O12 ” Garnet: A Fast Lithium-Ion Conductor journal February 2011

Cited By (8)

Dopant‐Dependent Stability of Garnet Solid Electrolyte Interfaces with Lithium Metal journal January 2019
Ion dynamics in solid electrolytes for lithium batteries: Probing jump rates and activation energies through time-domain Li NMR journal March 2017
Mechanistic understanding and strategies to design interfaces of solid electrolytes: insights gained from transmission electron microscopy journal May 2019
Separating bulk from grain boundary Li ion conductivity in the sol–gel prepared solid electrolyte Li 1.5 Al 0.5 Ti 1.5 (PO 4 ) 3 journal January 2015
A promising PMHS/PEO blend polymer electrolyte for all-solid-state lithium ion batteries journal January 2018
Local Li-ion conductivity changes within Al stabilized Li 7 La 3 Zr 2 O 12 and their relationship to three-dimensional variations of the bulk composition journal January 2019
Mechanical Stress Induced Current Focusing and Fracture in Grain Boundaries journal January 2019
Intermittent Contact Alternating Current Scanning Electrochemical Microscopy: A Method for Mapping Conductivities in Solid Li Ion Conducting Electrolyte Samples journal March 2016

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