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Concentrated Electrolyte for the Sodium-Oxygen Battery: Solvation Structure and Improved Cycle Life

Journal Article · · Angewandte Chemie (International Edition)
 [1];  [2];  [1];  [1];  [1];  [3];  [1]
  1. The Ohio State Univ., Columbus, OH (United States). Dept of Chemistry & Biochemistry
  2. California State Univ. (CalState), Long Beach, CA (United States). Dept. of Physics and Astronomy
  3. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
Alkali metal-oxygen batteries are of great interests for energy storage because of their unparalleled theoretical energy densities. Particularly attractive is the emerging Na-O2 battery because of the formation of superoxide as the discharge product. Dimethyl sulfoxide (DMSO) is a promising solvent for this battery but its instability towards Na makes it impractical in the Na-O2 battery. Here in this paper, we report the enhanced stability of Na in DMSO solutions containing concentrated sodium trifluoromethanesulfonimide (NaTFSI) salts (>3molkg-1). Raman spectra of NaTFSI/DMSO electrolytes and abinitio molecular dynamics simulation reveal the Na+ solvation number in DMSO and the formation of Na(DMSO)3(TFSI)-like solvation structure. The majority of DMSO molecules solvating Na+ in concentrated solutions reduces the available free DMSO molecules that can react with Na and renders the TFSI anion decomposition, which protects Na from reacting with the electrolyte. Using these concentrated electrolytes, Na-O2 batteries can be cycled forming sodium superoxide (NaO2) as the sole discharge product with improved long cycle life, highlighting the beneficial role of concentrated electrolytes for Na-based batteries.
Research Organization:
Argonne National Laboratory (ANL)
Sponsoring Organization:
National Science Foundation (NSF); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1352612
Journal Information:
Angewandte Chemie (International Edition), Journal Name: Angewandte Chemie (International Edition) Journal Issue: 49 Vol. 55; ISSN 1433-7851
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

References (28)

Ions in Solution and their Solvation book June 2015
Enhanced Cycling Stability of Rechargeable Li-O 2 Batteries Using High-Concentration Electrolytes journal December 2015
Solvent-Mediated Control of the Electrochemical Discharge Products of Non-Aqueous Sodium-Oxygen Electrochemistry journal May 2016
Solvent-Mediated Control of the Electrochemical Discharge Products of Non-Aqueous Sodium-Oxygen Electrochemistry journal May 2016
Spectroscopic characterization of the conformational states of the bis(trifluoromethanesulfonyl)imide anion (TFSI−) journal January 2005
Raman spectroscopy of dimethyl sulphoxide and deuterated dimethyl sulphoxide at 298 and 77 K journal January 2002
Enhanced cycling performance of a Li metal anode in a dimethylsulfoxide-based electrolyte using highly concentrated lithium salt for a lithium−oxygen battery journal March 2016
Investigation of Electrolyte Concentration Effects on the Performance of Lithium–Oxygen Batteries journal March 2016
Rate-Dependent Nucleation and Growth of NaO 2 in Na–O 2 Batteries journal June 2015
Sodium–Oxygen Battery: Steps Toward Reality journal March 2016
Aprotic and Aqueous Li–O2 Batteries journal April 2014
Electrolytes and Interphases in Li-Ion Batteries and Beyond journal October 2014
Nonaqueous Li–Air Batteries: A Status Report journal October 2014
A Low-Overpotential Potassium–Oxygen Battery Based on Potassium Superoxide journal February 2013
Unusual Stability of Acetonitrile-Based Superconcentrated Electrolytes for Fast-Charging Lithium-Ion Batteries journal March 2014
The Reaction of Sodium and Potassium with Dimethyl Sulfoxide. The Formation and Alkylation of Methanesulfenate 1 journal May 1965
Electrochemical Lithium Intercalation into Graphite in Dimethyl Sulfoxide-Based Electrolytes: Effect of Solvation Structure of Lithium Ion journal June 2010
Sacrificial Anion Reduction Mechanism for Electrochemical Stability Improvement in Highly Concentrated Li-Salt Electrolyte journal June 2014
Solvents’ Critical Role in Nonaqueous Lithium–Oxygen Battery Electrochemistry journal May 2011
Chemical and Electrochemical Differences in Nonaqueous Li–O 2 and Na–O 2 Batteries journal March 2014
The role of LiO2 solubility in O2 reduction in aprotic solvents and its consequences for Li–O2 batteries journal November 2014
The critical role of phase-transfer catalysis in aprotic sodium oxygen batteries journal May 2015
A rechargeable room-temperature sodium superoxide (NaO2) battery journal December 2012
Non-aqueous electrolytes for sodium-ion batteries journal January 2015
Investigating dendrites and side reactions in sodium–oxygen batteries for improved cycle lives journal January 2015
"Water-in-salt" electrolyte enables high-voltage aqueous lithium-ion chemistries journal November 2015
A Polymer Electrolyte-Based Rechargeable Lithium/Oxygen Battery journal January 1996
Review—Superconcentrated Electrolytes for Lithium Batteries journal January 2015

Cited By (28)

Tailoring Sodium Anodes for Stable Sodium-Oxygen Batteries journal January 2018
Stable Na Plating and Stripping Electrochemistry Promoted by In Situ Construction of an Alloy‐Based Sodiophilic Interphase journal February 2019
Design Strategies to Enable the Efficient Use of Sodium Metal Anodes in High‐Energy Batteries journal October 2019
Electrocatalysis of Rechargeable Non-Lithium Metal-Air Batteries journal September 2017
Challenges for Developing Rechargeable Room-Temperature Sodium Oxygen Batteries journal July 2018
Sodium-Ion Battery Electrolytes: Modeling and Simulations journal February 2018
Highly Durable and Stable Sodium Superoxide in Concentrated Electrolytes for Sodium-Oxygen Batteries journal October 2018
Strategies Toward Stable Nonaqueous Alkali Metal–O 2 Batteries journal May 2019
Localized High‐Concentration Electrolytes Boost Potassium Storage in High‐Loading Graphite journal October 2019
Electrolytes and Interphases in Sodium‐Based Rechargeable Batteries: Recent Advances and Perspectives journal April 2020
Simultaneous Stabilization of Potassium Metal and Superoxide in K-O 2 Batteries on the Basis of Electrolyte Reactivity journal June 2018
Reversible Sodium Metal Electrodes: Is Fluorine an Essential Interphasial Component? journal May 2019
Singlet Oxygen during Cycling of the Aprotic Sodium-O 2 Battery journal November 2017
Simultaneous Stabilization of Potassium Metal and Superoxide in K-O 2 Batteries on the Basis of Electrolyte Reactivity journal June 2018
Reversible Sodium Metal Electrodes: Is Fluorine an Essential Interphasial Component? journal May 2019
Alkali-Oxygen Batteries Based on Reversible Superoxide Chemistry journal October 2018
Boosting the Reversibility of Sodium Metal Anode via Heteroatom‐Doped Hollow Carbon Fibers journal August 2019
A Critical Review on Superoxide‐Based Sodium–Oxygen Batteries journal September 2018
Advances and issues in developing salt-concentrated battery electrolytes journal March 2019
Improving Na–O 2 batteries with redox mediators journal January 2017
Growth and dissolution of NaO 2 in an ether-based electrolyte as the discharge product in the Na–O 2 cell journal January 2018
“Solvent-in-salt” systems for design of new materials in chemistry, biology and energy research journal January 2018
Fluorinated Aryl Sulfonimide Tagged (FAST) salts: modular synthesis and structure–property relationships for battery applications journal January 2018
A titanium dioxide nanoparticle sandwiched separator for Na–O 2 batteries with suppressed dendrites and extended cycle life journal January 2018
Promoting defective-Li 2 O 2 formation via Na doping for Li–O 2 batteries with low charge overpotentials journal January 2019
Highly Durable and Stable Sodium Superoxide in Concentrated Electrolytes for Sodium–Oxygen Batteries journal July 2018
Electrolytes and Interphases in Sodium-Based Rechargeable Batteries : Recent Advances and Perspectives text January 2020
Electrolytes and Interphases in Sodium-Based Rechargeable Batteries: Recent Advances and Perspectives text January 2020

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