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An Advanced Lithium-Air Battery Exploiting an Ionic Liquid-Based Electrolyteopen access
- Authors
- Elia, G. A.; Hassoun, J.; Kwak, W. -J.; Sun, Yang Kook; Scrosati, B.; Mueller, F.; Bresser, D.; Passerini, S.; Oberhumer, P.; Tsiouvaras, N.; Reiter, J.
- Issue Date
- Nov-2014
- Publisher
- AMER CHEMICAL SOC
- Keywords
- Li-O-2 cell; ionic liquied; electrolyte; energy efficiency; lithium-oxygen battery
- Citation
- NANO LETTERS, v.14, no.11, pp.6572 - 6577
- Indexed
- SCIE
SCOPUS
- Journal Title
- NANO LETTERS
- Volume
- 14
- Number
- 11
- Start Page
- 6572
- End Page
- 6577
- ISSN
- 1530-6984
- Abstract
- A novel lithium-oxygen battery exploiting PYR14TFSI-LiTFSI as ionic liquid-based electrolyte medium is reported. The Li/PYR14TFSI-LiTFSI/O-2 battery was fully characterized by electrochemical impedance spectroscopy, capacity-limited cycling, field emission scanning electron microscopy, high-resolution transmission electron microscopy, and X-ray photoelectron spectroscopy. The results of this extensive study demonstrate that this new Li/O-2 cell is characterized by a stable electrode-electrolyte interface and a highly reversible charge-discharge cycling behavior. Most remarkably, the charge process (oxygen oxidation reaction) is characterized by a very low overvoltage, enhancing the energy efficiency to 82%, thus, addressing one of the most critical issues preventing the practical application of lithium-oxygen batteries.
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Related Researcher
- Sun, Yang Kook
- COLLEGE OF ENGINEERING (DEPARTMENT OF ENERGY ENGINEERING)