An Advanced Lithium-Air Battery Exploiting an Ionic Liquid-Based Electrolyte

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.

doi:10.1021/nl5031985

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An Advanced Lithium-Air Battery Exploiting an Ionic Liquid-Based Electrolyte

Elia, G. A.;
Hassoun, J.;
Kwak, W. -J.;
Sun, Yang Kook;
Scrosati, B.;
외 6명

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204

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211

초록

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.

키워드

Li-O-2 cell; ionic liquied; electrolyte; energy efficiency; lithium-oxygen battery; NONAQUEOUS ELECTROLYTE; OXYGEN REDUCTION; LI; STABILITY; SOLVENTS; PERFORMANCE

제목: An Advanced Lithium-Air Battery Exploiting an Ionic Liquid-Based Electrolyte

저자: 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.

DOI: 10.1021/nl5031985

발행일: 2014-11

유형: Article

저널명: Nano Letters

권: 14

호: 11

페이지: 6572 ~ 6577