抄録
Electrolytes highly enriched with oxygen for lithium-oxygen (Li-O2) batteries were prepared by combining perfluorohexyl bromide as an oxygen-uptake perfluorochemical (PFC) medium with lithium perfluorooctane sulfonate (LiPFOS) as a perfluoro-surfactant and a supporting electrolyte, which allowed an exceptionally high miscibility of PFCs with tetraethylene glycol dimethyl ether (TEGDME). The electrochemical reduction current of oxygen was enhanced three times in the LiPFOS-TEGDME electrolyte with ca. 60 wt% PFC content in comparison with that of a conventional Li-O2 battery electrolyte, which was ascribed to the high oxygen solubility of the electrolyte. A Li-O2 cell fabricated with the PFC-based electrolyte exhibited an excellent discharging capacity of 6500 mA h g-1 which was approximately 1.5 times higher than that obtained with the conventional electrolyte.
本文言語 | English |
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ページ(範囲) | 10845-10850 |
ページ数 | 6 |
ジャーナル | Journal of Materials Chemistry A |
巻 | 3 |
号 | 20 |
DOI | |
出版ステータス | Published - 2015 5月 28 |
ASJC Scopus subject areas
- 化学 (全般)
- 再生可能エネルギー、持続可能性、環境
- 材料科学(全般)