A Transmission Electron Microscopy Study of the Electrochemical Process of Lithium–Oxygen Cells

The electrochemical reaction of a lithium–oxygen cell using a tetraethylene glycol dimethyl ether-lithium triflate, TEGDME-LiCF3SO3 electrolyte, is investigated by a detailed transmission electron microscopy analysis. The results confirm the reversibility of the process by showing the formation–diss...

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Bibliographic Details
Published in:Nano letters 2012-08, Vol.12 (8), p.4333-4335
Main Authors: Jung, Hun-Gi, Kim, Hee-Soo, Park, Jin-Bum, Oh, In-Hwan, Hassoun, Jusef, Yoon, Chong Seung, Scrosati, Bruno, Sun, Yang-Kook
Format: Article
Language:English
Subjects:
Applied sciences
Charge
Dimethyl
Direct energy conversion and energy accumulation
Discharge
Electrical engineering. Electrical power engineering
Electrical power engineering
Electrochemical conversion: primary and secondary batteries, fuel cells
Electrolytes
Electrolytic cells
Electron microscopy
Exact sciences and technology
Lithium
Nanostructure
Peroxides
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Summary:The electrochemical reaction of a lithium–oxygen cell using a tetraethylene glycol dimethyl ether-lithium triflate, TEGDME-LiCF3SO3 electrolyte, is investigated by a detailed transmission electron microscopy analysis. The results confirm the reversibility of the process by showing the formation–dissolution of lithium peroxide, Li2O2, upon repeating cell charge and discharge cycles.
ISSN:1530-6984
1530-6992
DOI:10.1021/nl302066d