Non-aqueous aluminium―air battery based on ionic liquid electrolyte

• Published in: Journal of power sources Vol. 272; pp. 415 - 421
• Main Authors: REVEL, Renaud, AUDICHON, Thomas, GONZALEZ, Serge
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier 25.12.2014
• Subjects: Aluminium; Applied sciences; Density; Direct energy conversion and energy accumulation; Electric batteries; Electrical engineering. Electrical power engineering; Electrical power engineering; Electrochemical conversion: primary and secondary batteries, fuel cells; Electrodes; Electrolytes; Exact sciences and technology; Ionic liquids; Metal air batteries; Voltage; High density; Aluminium―air battery; Secondary cell; High capacity; Ionic liquid; Non aqueous solution; Electrolyte; High current; Aluminium air batteries; Capacitance; High current density; Current density; Non aqueous solvent
• ISSN: 0378-7753; 1873-2755
• DOI: 10.1016/j.jpowsour.2014.08.056

A promising metal-air secondary battery based on aluminium-oxygen couple is described. In this paper, we observed that an aluminium-air battery employing EMImCl, AlCl sub(3) room temperature ionic liquid (RTIL) as electrolyte and aluminium as negative electrode, has an exceptional reduced self-discharged rate. Due to its new and innovative type of electrolyte, this aluminium-air battery can support relatively high current densities (up to 0.6 mA cm super(-2)) and an average voltage of 0.6-0.8 V. Such batteries may find immediate applications, as they can provide an internal, built-in autonomous and self-sustained energy source.