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Title: Structural manipulation approaches towards enhanced sodium ionic conductivity in Na-rich antiperovskites

Journal Article · · Journal of Power Sources
 [1];  [2];  [2];  [2];  [3];  [3];  [2];  [2];  [2];  [3]
  1. Peking Univ., Beijing (China); Univ. of Nevada, Las Vegas, NV (United States)
  2. Peking Univ., Beijing (China)
  3. Univ. of Nevada, Las Vegas, NV (United States)

High-performance solid electrolytes are critical for realizing all-solid-state batteries with enhance safety and cycling efficiency. However, currently available candidates (sulfides and the NASICON-typ ceramics) still suffer from drawbacks such as inflammability, high-cost and unfavorable machinability Here we present the structural manipulation approaches to improve the sodium ionic conductivity in series of affordable Na-rich antiperovskites. Experimentally, the whole solid solutions of Na3OX (X ¼ Cl Br, I) are synthesized via a facile and timesaving route from the cheapest raw materials (Na, NaOH an NaX). The materials are nonflammable, suitable for thermoplastic processing due to low melting temperature (<300° C) without decomposing. Notably, owing to the flexibility of perovskite-type structure it's feasible to control the local structure features by means of size-mismatch substitution an unequivalent-doping for a favorable sodium ionic diffusion pathway. Enhancement of sodium ioni conductivity by 2 magnitudes is demonstrated by these chemical tuning methods. The optimized sodiu ionic conductivity in Na2.9Sr0.05OBr0.6I0.4 bulk samples reaches 1.9 10- 3 S/cm at 200° C and even highe at elevated temperature. Here, we believe further chemical tuning efforts on Na-rich antiperovskites wil promote their performance greatly for practical all-solid state battery applications.

Research Organization:
Univ. of Nevada, Las Vegas, NV (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
NA0001982
OSTI ID:
1332398
Journal Information:
Journal of Power Sources, Vol. 293, Issue C; ISSN 0378-7753
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 72 works
Citation information provided by
Web of Science

References (24)

Building better batteries journal February 2008
The Li-Ion Rechargeable Battery: A Perspective journal January 2013
A review of advanced and practical lithium battery materials journal January 2011
Functional Materials for Rechargeable Batteries journal March 2011
Inorganic solid Li ion conductors: An overview journal June 2009
Issues and challenges facing rechargeable lithium batteries journal November 2001
Crystal structure of a superionic conductor, Li7P3S11 journal June 2007
A lithium superionic conductor journal July 2011
Superionic glass-ceramic electrolytes for room-temperature rechargeable sodium batteries journal January 2012
Anomalous High Ionic Conductivity of Nanoporous β-Li3PS4 journal January 2013
Conductivity measurements on nasicon and nasicon-modified materials journal July 1999
Li 14 Ln 5 [Si 11 N 19 O 5 ]O 2 F 2 with Ln = Ce, Nd—Representatives of a Family of Potential Lithium Ion Conductors journal June 2012
Superionic Conductivity in Lithium-Rich Anti-Perovskites journal August 2012
Solid Electrolyte Behavior of NaMgF3: Geophysical Implications journal November 1979
Thermal expansion and structural distortion of perovskite — data for NaMgF3 perovskite. Part I journal February 1993
Crystal Chemistry and Phase Transitions of Perovskite inP–T–XSpace: Data for (KxNa1−x)MgF3Perovskites journal November 1998
Electrical Conductivities and Conduction Mechanisms of Perovskite-type Na1-xKxMgF3 (x = 0, 0.1, 1) and KZnF3 journal February 2005
P2-type Nax[Fe1/2Mn1/2]O2 made from earth-abundant elements for rechargeable Na batteries journal April 2012
A rechargeable room-temperature sodium superoxide (NaO2) battery journal December 2012
Chemically Bonded Phosphorus/Graphene Hybrid as a High Performance Anode for Sodium-Ion Batteries journal October 2014
Phosphorus-Graphene Nanosheet Hybrids as Lithium-Ion Anode with Exceptional High-Temperature Cycling Stability journal January 2015
The crystal structure of kogarkoite, Na 3 SO 4 F journal June 1980
(CN)ONa3, Kristallstruktur und Natriumionenleitf�higkeit journal December 1990
�ber die quasi-bin�ren Systeme NaNO2/Na2O und NaCN/Na2O. Phasendiagramme und Natrium-Ionenleitung in Na3O(NO2) und Na3O(CN) journal May 1992

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Electronic structure, thermomechanical and phonon properties of inverse perovskite oxide (Na 3 OCl): An ab initio study journal December 2019
Elastic Properties of Alkali Superionic Conductor Electrolytes from First Principles Calculations journal November 2015
Ab initio investigation of the stability of electrolyte/electrode interfaces in all-solid-state Na batteries journal January 2019
Correlating lattice distortions, ion migration barriers, and stability in solid electrolytes journal January 2019
Metal- and covalent-organic frameworks as solid-state electrolytes for metal-ion batteries
  • Miner, Elise M.; Dincă, Mircea
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 377, Issue 2149 https://doi.org/10.1098/rsta.2018.0225
journal July 2019
First Principle Material Genome Approach for All Solid‐State Batteries journal September 2019
Theoretical design of double anti-perovskite Na 6 SOI 2 as a super-fast ion conductor for solid Na + ion batteries journal January 2018
Solid-State Sodium Batteries journal February 2018
Fluorine-Doped Antiperovskite Electrolyte for All-Solid-State Lithium-Ion Batteries journal June 2016
Enhanced ionic conductivity with Li 7 O 2 Br 3 phase in Li 3 OBr anti-perovskite solid electrolyte journal September 2016
Fluorine-Doped Antiperovskite Electrolyte for All-Solid-State Lithium-Ion Batteries journal June 2016