An Efficient Halogen‐Free Electrolyte for Use in Rechargeable Magnesium Batteries |
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| Authors: | Dr Oscar Tutusaus Dr Rana Mohtadi Dr Timothy S Arthur Dr Fuminori Mizuno Dr Emily G Nelson Prof Yulia V Sevryugina |
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| Institution: | 1. Materials Research Department, Toyota Research Institute of North America, Ann Arbor, MI 48105 (USA);2. Department of Chemistry, University of Michigan (USA);3. Department of Chemistry, Texas Christian University (USA) |
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| Abstract: | Unlocking the full potential of rechargeable magnesium batteries has been partially hindered by the reliance on chloride‐based complex systems. Despite the high anodic stability of these electrolytes, they are corrosive toward metallic battery components, which reduce their practical electrochemical window. Following on our new design concept involving boron cluster anions, monocarborane CB11H12? produced the first halogen‐free, simple‐type Mg salt that is compatible with Mg metal and displays an oxidative stability surpassing that of ether solvents. Owing to its inertness and non‐corrosive nature, the Mg(CB11H12)2/tetraglyme (MMC/G4) electrolyte system permits standardized methods of high‐voltage cathode testing that uses a typical coin cell. This achievement is a turning point in the research and development of Mg electrolytes that has deep implications on realizing practical rechargeable Mg batteries. |
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| Keywords: | carboranes electrochemistry magnesium non‐corrosive electrolytes rechargeable batteries |
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