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|a Kwabi, David Gator
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|a Massachusetts Institute of Technology. Department of Materials Science and Engineering
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|a Massachusetts Institute of Technology. Department of Mechanical Engineering
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|a Kwabi, David Gator
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|a Batcho, Thomas Peter
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|a Thompson, Carl Vernette
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|a Shao-Horn, Yang
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|a Bryantsev, Vyacheslav S.
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|a Batcho, Thomas Peter
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|a Itkis, Daniil M.
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|a Thompson, Carl Vernette
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|a Shao-Horn, Yang
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|a Experimental and Computational Analysis of the Solvent-Dependent O[subscript 2]/Li+-O[subscript 2][superpscript −] Redox Couple: Standard Potentials, Coupling Strength, and Implications for Lithium-Oxygen Batteries
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|a Experimental and Computational Analysis of the Solvent-Dependent O2/Li+-O2− Redox Couple: Standard Potentials, Coupling Strength, and Implications for Lithium-Oxygen Batteries
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|b John Wiley & Sons,
|c 2016-06-08T16:39:53Z.
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|z Get fulltext
|u http://hdl.handle.net/1721.1/103059
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|a Understanding and controlling the kinetics of O[subscript 2] reduction in the presence of Li+-containing aprotic solvents, to either Li+-O[subscript 2]− by one-electron reduction or Li[subscript 2]O[subscript 2] by two-electron reduction, is instrumental to enhance the discharge voltage and capacity of aprotic Li-O[subscript 2] batteries. Standard potentials of O[subscript 2]/Li+-O[subscript 2]− and O[subscript 2]/O[subscript 2]− were experimentally measured and computed using a mixed cluster-continuum model of ion solvation. Increasing combined solvation of Li+ and O[subscript 2]− was found to lower the coupling of Li+-O[subscript 2]− and the difference between O[subscript 2]/Li+-O[subscript 2]− and O[subscript 2]/O[subscript 2]− potentials. The solvation energy of Li+ trended with donor number (DN), and varied greater than that of O[subscript 2]− ions, which correlated with acceptor number (AN), explaining a previously reported correlation between Li+-O[subscript 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.
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|a National Science Foundation (U.S.) (NSF award no. ECS-0335765)
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|a China Clean Energy Research Center-Clean Vehicles Consortium (CERC-CVC)
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|a United States. Dept. of Energy (Award number DEPI0000012)
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|a National Science Foundation (U.S.) (Award number DMR-0819762)
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|a Robert Bosch GmbH (Bosch Energy Research Network (BERN) Grant)
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|a Skolkovo Institute of Science and Technology (Skoltech-MIT Center for Electochemical Energy Storage)
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|a en_US
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|a Article
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|t Angewandte Chemie International Edition
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