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Title: Experimental and Computational Analysis of the Solvent‐Dependent O 2 /Li + ‐O 2 Redox Couple: Standard Potentials, Coupling Strength, and Implications for Lithium–Oxygen Batteries

Journal Article · · Angewandte Chemie (International Edition)
 [1];  [2];  [3];  [4];  [3];  [5]
  1. Department of Mechanical Engineering Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
  2. Liox Power Inc 129 North Hill Ave, Suite 103 Pasadena CA 911106 USA, Oak Ridge National Lab Chemical Sciences Division 1 Bethel Valley Rd Oak Ridge TN 37831-6119 USA
  3. Department of Materials Science and Engineering Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
  4. Department of Chemistry and Materials Science Moscow State University Moscow 119992 Russia
  5. Department of Mechanical Engineering Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA, Department of Materials Science and Engineering Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA

Abstract Understanding and controlling the kinetics of O 2 reduction in the presence of Li + ‐containing aprotic solvents, to either Li + ‐O 2 by one‐electron reduction or Li 2 O 2 by two‐electron reduction, is instrumental to enhance the discharge voltage and capacity of aprotic Li‐O 2 batteries. Standard potentials of O 2 /Li + ‐O 2 and O 2 /O 2 were experimentally measured and computed using a mixed cluster‐continuum model of ion solvation. Increasing combined solvation of Li + and O 2 was found to lower the coupling of Li + ‐O 2 and the difference between O 2 /Li + ‐O 2 and O 2 /O 2 potentials. The solvation energy of Li + trended with donor number (DN), and varied greater than that of O 2 ions, which correlated with acceptor number (AN), explaining a previously reported correlation between Li + ‐O 2 solubility and DN. These results highlight the importance of the interplay between ion–solvent and ion–ion interactions for manipulating the energetics of intermediate species produced in aprotic metal–oxygen batteries.

Sponsoring Organization:
USDOE
Grant/Contract Number:
PI0000012
OSTI ID:
1400735
Journal Information:
Angewandte Chemie (International Edition), Journal Name: Angewandte Chemie (International Edition) Vol. 55 Journal Issue: 9; ISSN 1433-7851
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
Germany
Language:
English
Citation Metrics:
Cited by: 99 works
Citation information provided by
Web of Science

References (52)

Oxygen Reactions in a Non-Aqueous Li+ Electrolyte journal May 2011
Screening for Superoxide Reactivity in Li-O 2 Batteries: Effect on Li 2 O 2 /LiOH Crystallization journal February 2012
Effects of media and electrode materials on the electrochemical reduction of dioxygen journal September 1982
Elucidating the Mechanism of Oxygen Reduction for Lithium-Air Battery Applications journal November 2009
Oxygen Reduction Reactions in Ionic Liquids and the Formulation of a General ORR Mechanism for Li–Air Batteries journal September 2012
Influence of Nonaqueous Solvents on the Electrochemistry of Oxygen in the Rechargeable Lithium−Air Battery journal April 2010
The acceptor number ? A quantitative empirical parameter for the electrophilic properties of solvents journal January 1975
Solvent effects on half-wave potentials journal October 1986
Nucleation and Growth of Lithium Peroxide in the Li–O 2 Battery journal August 2015
A rechargeable room-temperature sodium superoxide (NaO2) battery journal December 2012
Oxygen Reactions in a Non-Aqueous Li+ Electrolyte journal May 2011
Don't Forget Long-Term Fundamental Research in Energy journal February 2007
A Rechargeable Li–O 2 Battery Using a Lithium Nitrate/ N , N -Dimethylacetamide Electrolyte journal January 2013
Oxidation of Dimethyl Sulfoxide Solutions by Electrochemical Reduction of Oxygen journal September 2013
Current density dependence of peroxide formation in the Li–O2 battery and its effect on charge journal January 2013
Powering the planet with solar fuel journal April 2009
Solvating additives drive solution-mediated electrochemistry and enhance toroid growth in non-aqueous Li–O2 batteries journal December 2014
Trade-Offs in Capacity and Rechargeability in Nonaqueous Li–O 2 Batteries: Solution-Driven Growth versus Nucleophilic Stability journal March 2015
Structure and Stability of Lithium Superoxide Clusters and Relevance to Li–O2 Batteries journal February 2014
Glyme–Lithium Salt Equimolar Molten Mixtures: Concentrated Solutions or Solvate Ionic Liquids? journal August 2012
Charging a Li–O2 battery using a redox mediator journal May 2013
Solvation of Metal Cations in Non-aqueous Liquids journal August 2011
Die Lithium-Sauerstoff-Batterie mit etherbasierten Elektrolyten journal July 2011
Theoretical Analysis on De-Solvation of Lithium, Sodium, and Magnesium Cations to Organic Electrolyte Solvents journal January 2013
Unusual Li + Ion Solvation Structure in Bis(fluorosulfonyl)amide Based Ionic Liquid journal September 2013
Lithium peroxide crystal clusters as a natural growth feature of discharge products in Li–O 2 cells journal January 2013
Towards a Stable Organic Electrolyte for the Lithium Oxygen Battery journal August 2014
Solvent effects on the reactivities of organometallic compounds journal February 1976
Hydrogen Cars: Fad or the Future? journal June 2009
The role of LiO2 solubility in O2 reduction in aprotic solvents and its consequences for Li–O2 batteries journal November 2014
The Identification of Stable Solvents for Nonaqueous Rechargeable Li-Air Batteries journal November 2012
Infrared Spectroscopy Studies on Stability of Dimethyl Sulfoxide for Application in a Li–Air Battery journal August 2013
Li + solvation in glyme–Li salt solvate ionic liquids journal January 2015
A rotating ring disk electrode study of the oxygen reduction reaction in lithium containing non aqueous electrolyte journal June 2013
The chemistry of superoxide ion journal January 1979
All-carbon-nanofiber electrodes for high-energy rechargeable Li–O2 batteries journal January 2011
Just a Dream—or Future Reality? journal April 2009
Influence of Li2O2 morphology on oxygen reduction and evolution kinetics in Li–O2 batteries journal January 2013
Electronic Effects of Substituents on Redox Shuttles for Overcharge Protection of Li-ion Batteries journal January 2012
Hard and Soft Acids and Bases journal November 1963
On the Mechanism of Nonaqueous Li–O 2 Electrochemistry on C and Its Kinetic Overpotentials: Some Implications for Li–Air Batteries journal November 2012
Materials challenges in rechargeable lithium-air batteries journal May 2014
The Lithium-Oxygen Battery with Ether-Based Electrolytes journal July 2011
Li–O2 and Li–S batteries with high energy storage journal January 2012
Li–O 2 Battery with a Dimethylformamide Electrolyte journal April 2012
Predicting Solvent Stability in Aprotic Electrolyte Li–Air Batteries: Nucleophilic Substitution by the Superoxide Anion Radical (O 2 •– ) journal November 2011
Reducion of Oxygen to Superoxide Anion in Aprotic Solvents. journal November 1965
Electrolyte-Directed Reactions of the Oxygen Electrode in Lithium-Air Batteries journal December 2014
The electrochemistry of noble metal electrodes in aprotic organic solvents containing lithium salts journal January 1991
Chemical Instability of Dimethyl Sulfoxide in Lithium–Air Batteries journal August 2014
Novel DMSO-based electrolyte for high performance rechargeable Li–O2 batteries journal January 2012
Studies of Li-Air Cells Utilizing Dimethyl Sulfoxide-Based Electrolyte journal December 2012

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