Revealing instability and irreversibility in nonaqueous sodium-O2 battery chemistry

Charging kinetics and reversibility of Na-O2 batteries can be influenced greatly by the particle size of NaO2 formed upon discharge, and exposure time (reactivity) of NaO2 to the electrolyte. Micrometer-sized NaO2 cubes formed at high discharge rates were charged at smaller overpotentials compared t...

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Bibliographic Details
Published inChemical communications (Cambridge, England) Vol. 52; no. 62; pp. 9691 - 9694
Main Authors Sayed, Sayed Youssef, Yao, Koffi P C, Kwabi, David G, Batcho, Thomas P, Amanchukwu, Chibueze V, Feng, Shuting, Thompson, Carl V, Shao-Horn, Yang
Format Journal Article
LanguageEnglish
Published England 26.07.2016
Subjects
Charging
Discharge
Electric batteries
Electrolytes
Instability
Nanostructure
Particle size
Stability
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Summary:Charging kinetics and reversibility of Na-O2 batteries can be influenced greatly by the particle size of NaO2 formed upon discharge, and exposure time (reactivity) of NaO2 to the electrolyte. Micrometer-sized NaO2 cubes formed at high discharge rates were charged at smaller overpotentials compared to nanometer-sized counterparts formed at low rates.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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ISSN:1359-7345
1364-548X
DOI:10.1039/c6cc02291j