N-methylacetamide as an electrolyte solvent for rechargeable Li-O 2 batteries: Unexpected stability at the O2 electrode

Vincent Giordani; Vyacheslav S. Bryantsev; Jasim Uddin; Wesley Walker; Gregory V. Chase; Dan Addison

doi:10.1149/2.007401eel

N-methylacetamide as an electrolyte solvent for rechargeable Li-O ₂ batteries: Unexpected stability at the O₂ electrode

Vincent Giordani, Vyacheslav S. Bryantsev, Jasim Uddin, Wesley Walker, Gregory V. Chase, Dan Addison

Research output: Contribution to journal › Article › peer-review

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Abstract

We report on the use of N-methylacetamide (NMA) as an electrolyte solvent in a rechargeable Li-O₂ battery. Despite a relatively high acidity of the secondary amide N-H group, NMA shows unexpected stability toward superoxide. Quantum chemical calculations are used to rationalize this behavior. A Li-O₂ cell using a novel NMA/LiNO₃ electrolyte is shown to have good cycling performance with a consistent charging profile, Li ₂O₂ formed during discharge, and O₂ detected as the primary gaseous product during charge. Resistance of secondary amides to chemical degradation in the O₂ electrode makes them attractive candidates as electrolyte solvents for rechargeable Li-O₂ batteries.

Original language	English
Pages (from-to)	A11-A14
Journal	ECS Electrochemistry Letters
Volume	3
Issue number	1
DOIs	https://doi.org/10.1149/2.007401eel
State	Published - 2014
Externally published	Yes

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10.1149/2.007401eel

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abstract = "We report on the use of N-methylacetamide (NMA) as an electrolyte solvent in a rechargeable Li-O2 battery. Despite a relatively high acidity of the secondary amide N-H group, NMA shows unexpected stability toward superoxide. Quantum chemical calculations are used to rationalize this behavior. A Li-O2 cell using a novel NMA/LiNO3 electrolyte is shown to have good cycling performance with a consistent charging profile, Li 2O2 formed during discharge, and O2 detected as the primary gaseous product during charge. Resistance of secondary amides to chemical degradation in the O2 electrode makes them attractive candidates as electrolyte solvents for rechargeable Li-O2 batteries.",

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AU - Giordani, Vincent

AU - Bryantsev, Vyacheslav S.

AU - Uddin, Jasim

AU - Walker, Wesley

AU - Chase, Gregory V.

AU - Addison, Dan

PY - 2014

Y1 - 2014

N2 - We report on the use of N-methylacetamide (NMA) as an electrolyte solvent in a rechargeable Li-O2 battery. Despite a relatively high acidity of the secondary amide N-H group, NMA shows unexpected stability toward superoxide. Quantum chemical calculations are used to rationalize this behavior. A Li-O2 cell using a novel NMA/LiNO3 electrolyte is shown to have good cycling performance with a consistent charging profile, Li 2O2 formed during discharge, and O2 detected as the primary gaseous product during charge. Resistance of secondary amides to chemical degradation in the O2 electrode makes them attractive candidates as electrolyte solvents for rechargeable Li-O2 batteries.

AB - We report on the use of N-methylacetamide (NMA) as an electrolyte solvent in a rechargeable Li-O2 battery. Despite a relatively high acidity of the secondary amide N-H group, NMA shows unexpected stability toward superoxide. Quantum chemical calculations are used to rationalize this behavior. A Li-O2 cell using a novel NMA/LiNO3 electrolyte is shown to have good cycling performance with a consistent charging profile, Li 2O2 formed during discharge, and O2 detected as the primary gaseous product during charge. Resistance of secondary amides to chemical degradation in the O2 electrode makes them attractive candidates as electrolyte solvents for rechargeable Li-O2 batteries.

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SP - A11-A14

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JF - ECS Electrochemistry Letters

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ER -

N-methylacetamide as an electrolyte solvent for rechargeable Li-O ₂ batteries: Unexpected stability at the O₂ electrode

Abstract

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