Enabling Rechargeable Magnesium Batteries through Bottom up Design Strategies

Wednesday, October 14, 2015: 11:20
102-C (Phoenix Convention Center)
R. Mohtadi, O. Tutusaus, T. S. Arthur (Toyota Research Institute of North America), and F. Mizuno (Toyota Research Institute of North America)
Recently, rechargeable magnesium battery has been attracting attention as a candidate for a post Li-ion battery owing to a high volumetric capacity of 3832 mAh/ cm3, and the absence of dendrites formation which eliminates a major safety concern hampering the utilization of Li metal anodes [1].  In addition, the abundance and low cost of Mg metal makes this battery very attractive for future commercialization. Nonetheless, current Mg battery technology suffers from several drawbacks which hamper its utilization. These are primarily related to the absence of practical high voltage cathodes and the occurence of severe corrosion of the current collectors caused by the electrolytes.  In this presentation, we will explain the current challenges associated with these batteries and offer potential approaches which could be used to overcome these challenges. In addition, we will discuss our electrolyte’s development research strategy using a new class of electrolytes based on magnesium borohydride and its derivatives which resulted in the first simple type, all around and non-corrosive salt that could be used in magnesium batteries [2,3,4,5].  The electrolyte prepared was used in the first demonstration of high voltage Mg battery coin cell making these batteries a step closer to becoming practical [5].

[1] a) H. D. Yoo, I. Shterenberg, Y. Gofer, G. Gershinsky, N. Pour, D. Aurbach, Energy Environ. Sci. 2013, 6, 2265-2279; b) J. Muldoon, C. B. Bucur, A. G. Oliver, T. Sugimoto, M. Matsui, H. S. Kim, G. D. Allred, J. Zajicek, Y. Kotani, Energy Environ. Sci. 201255941-5950; c) R. Mohtadi, F. Mizuno  Beilstein J. Nanotechnol. 20145, 1291–1311.

[2] R. Mohtadi, M. Matsui, T. S. Arthur, S.-J. Hwang, Angew. Chem. Int. Ed. 2012, 51,9780 –9783.

[3] T. J. Carter, R. Mohtadi, T. S. Arthur, F. Mizuno, R. Zhang, S. Shirai, J. W. Kampf,Angew. Chem. Int. Ed. 2014, 53, 3173-3177.

[4] O. Tutusaus, R. Mohtadi, ChemElectroChem. 2014 DOI: 10.1002/celc.201402207.

[5] O. Tutusaus, R. Mohtadi et al. Angew. Chem. Int. Ed. 2015, Accepted.