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Invited Presentation: Air Batteries with Ionic Liquid Electrolytes: The Abile Project

Friday, 13 June 2014: 15:30
Central Pavilion (Villa Erba)
D. Bresser (Institute of Physical Chemistry & MEET, University of Muenster), G. A. Elia (Sapienza - University of Rome), J. Hassoun (Sapienza University of Rome), W. J. Kwak (Hanyang University), P. Lamp (BMW Group), F. Mueller (Institute of Physical Chemistry & MEET, University of Muenster), S. Nuernberger, P. Oberhumer, O. Paschos (BMW Group), S. Passerini (Institute of Physical Chemistry, University of Muenster, Helmholtz Institute Ulm, Karlsruhe Institute of Technology), J. Reiter (BMW Group), B. Scrosati (Elettrochimica ed Energia), Y. K. Sun (Department of Energy Engineering, Hanyang University), and N. Tsiouvaras (BMW Group)
Electrification has been a major focus of BMW and large efforts have been initiated in order to investigate technologies of high potential to be integrated in future electric vehicles. Metal-air and particularly lithium-air batteries [1] are one of the possible solutions that may substantially enhance the electric drive range. The main challenges in Li-air batteries are related to the stability of the electrolyte and safety of the negative electrode. BMW, together with three scientific teams initiated a project focusing on the use of ionic liquids and alternative anodes as potential components for Li-air batteries.

Due to their excellent electrochemical and chemical properties, onium-based ionic liquids [2] were chosen as the first candidates. The presentation will describe the electrochemical behaviour of a Li-air cell comprising such ionic liquid-based electrolytes. The results prove the concept that the chosen ionic liquid may assure the proper lithium-oxygen cell operation and electrochemical stability during cycling.

In this presentation work towards system safety improvement will be also shown [3]. In this field, alternatives to the lithium metal anode were investigated. The latter include: i) tin-carbon composite, ii) carbon-coated Zn1-xFexO [4], iii) SiOx-carbon and SiOx-silicon materials. Electrochemical tests have shown reversible behaviour of all materials both in conventional organic electrolytes as well as in electrolytes based on ionic liquids.

References:

  1. Girishkumar G., McCloskey B., Luntz A.C., Wanson S., Wilcke W.: Lithium-air battery: Promise and Challenges. J. Phys. Chem. Lett., 2010, 1 (14), p. 2193-2203.
  2. Armand M., Endres F., MacFarlane D.R., Ohno H., Scrosati B.: Ionic-liquid materials for the Electrochemical Challenges. Nature Mat., 2009, 8 (8), p. 621-629.
  3. Hassoun J., Jung H.G., Lee D.J., Park J.B., Amine K., Sun Y.K., Scrosati B.: A Metal-Free, Lithium-Ion Oxygen Battery: A Step Forward to Safety in Lithium-Air Batteries. Nano Letters, 2012, 12, p. 5775-5779.
  4. Bresser D., Mueller F., Fiedler M., Krueger S., Kloepsch R., Baither D., Winter M., Paillard E., Passerini S.: Transition-Metal-Doped Zinc Oxide Nanoparticles as a New Lithium-Ion Anode Material. Chemistry of Materials, 2013, 25 (24), p. 4977-4985.
See more of: Session 10
See more of: O1: Oral Presentations
See more of: Batteries and Energy Storage
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