Effect of Composition on Mechanical Properties and Conductivity of the Dual-Ion Conductor Na1+xMnx/2Zr2–x/2(PO4)3 for Solid-State Batteries
Abstract
Here we report the dependence of mechanical properties and ionic conductivity of the Na1+xMnx/2Zr2–x/2(PO4)3 (designated as NMZP) ionic conductor on its composition (with x = 0.5, 1.0, 1.5, and 2.0). Local mechanics was studied by instrumented nanoindentation, and the properties of interest included the elastic modulus, hardness, and fracture toughness. Overall, the material becomes more compliant and soft with the increase in the Na content. The elastic modulus reduces from 120 to 80 GPa, and nanoindentation hardness reduces from 7.8 to 4.2 GPa when x changes from 0.5 to 2.0. The relationship with fracture toughness (KC) is highly nonlinear: fracture toughness first decreases and then increases with the increase in the sodium content, reaching a maximum value of 0.89 MPa × m1/2 at x = 2.0. Such a relationship was found to correlate with the formation of a glassy phase in NMZP at intermediate Na concentration. The maximum ionic conductivity coincides with the maximum fracture toughness in this material.
- Authors:
-
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1827017
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- ACS Applied Energy Materials
- Additional Journal Information:
- Journal Volume: 4; Journal Issue: 10; Journal ID: ISSN 2574-0962
- Publisher:
- American Chemical Society (ACS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 25 ENERGY STORAGE; solid-state battery; mechanics; lithium; sodium; NASICON
Citation Formats
Kalnaus, Sergiy, Amin, Ruhul, Parish, Chad, Parejiya, Anand Vasudevbhai, Essehli, Rachid, Westover, Andrew, Tsai, Wan-Yu, Nanda, Jagjit, and Belharouak, Ilias. Effect of Composition on Mechanical Properties and Conductivity of the Dual-Ion Conductor Na1+xMnx/2Zr2–x/2(PO4)3 for Solid-State Batteries. United States: N. p., 2021.
Web. doi:10.1021/acsaem.1c02414.
Kalnaus, Sergiy, Amin, Ruhul, Parish, Chad, Parejiya, Anand Vasudevbhai, Essehli, Rachid, Westover, Andrew, Tsai, Wan-Yu, Nanda, Jagjit, & Belharouak, Ilias. Effect of Composition on Mechanical Properties and Conductivity of the Dual-Ion Conductor Na1+xMnx/2Zr2–x/2(PO4)3 for Solid-State Batteries. United States. https://doi.org/10.1021/acsaem.1c02414
Kalnaus, Sergiy, Amin, Ruhul, Parish, Chad, Parejiya, Anand Vasudevbhai, Essehli, Rachid, Westover, Andrew, Tsai, Wan-Yu, Nanda, Jagjit, and Belharouak, Ilias. Wed .
"Effect of Composition on Mechanical Properties and Conductivity of the Dual-Ion Conductor Na1+xMnx/2Zr2–x/2(PO4)3 for Solid-State Batteries". United States. https://doi.org/10.1021/acsaem.1c02414. https://www.osti.gov/servlets/purl/1827017.
@article{osti_1827017,
title = {Effect of Composition on Mechanical Properties and Conductivity of the Dual-Ion Conductor Na1+xMnx/2Zr2–x/2(PO4)3 for Solid-State Batteries},
author = {Kalnaus, Sergiy and Amin, Ruhul and Parish, Chad and Parejiya, Anand Vasudevbhai and Essehli, Rachid and Westover, Andrew and Tsai, Wan-Yu and Nanda, Jagjit and Belharouak, Ilias},
abstractNote = {Here we report the dependence of mechanical properties and ionic conductivity of the Na1+xMnx/2Zr2–x/2(PO4)3 (designated as NMZP) ionic conductor on its composition (with x = 0.5, 1.0, 1.5, and 2.0). Local mechanics was studied by instrumented nanoindentation, and the properties of interest included the elastic modulus, hardness, and fracture toughness. Overall, the material becomes more compliant and soft with the increase in the Na content. The elastic modulus reduces from 120 to 80 GPa, and nanoindentation hardness reduces from 7.8 to 4.2 GPa when x changes from 0.5 to 2.0. The relationship with fracture toughness (KC) is highly nonlinear: fracture toughness first decreases and then increases with the increase in the sodium content, reaching a maximum value of 0.89 MPa × m1/2 at x = 2.0. Such a relationship was found to correlate with the formation of a glassy phase in NMZP at intermediate Na concentration. The maximum ionic conductivity coincides with the maximum fracture toughness in this material.},
doi = {10.1021/acsaem.1c02414},
journal = {ACS Applied Energy Materials},
number = 10,
volume = 4,
place = {United States},
year = {Wed Oct 13 00:00:00 EDT 2021},
month = {Wed Oct 13 00:00:00 EDT 2021}
}
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