Anode Material Associated with Polymeric Networking of Triflate Ions Formed on Mg

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• 作者：Tohru Shiga ; Yuichi Kato ; Masae Inoue ; Naoko Takahashi ; Yoko Hase
• 刊名：Journal of Physical Chemistry C
• 出版年：2015
• 出版时间：February 19, 2015
• 年：2015
• 卷：119
• 期：7
• 页码：3488-3494
• 全文大小：475K
• ISSN：1932-7455

文摘

We have examined anode materials with anions as an ion transport species to solve metal deposition in rechargeable batteries intrinsically. Mg deposition-dissolution tests were conducted using some ionic liquid electrolytes at 60 掳C, and a new electrochemical reaction was observed in addition to Mg deposition and dissolution in an electrolyte of Mg(CF₃SO₃)₂ and N-methyl-N-propylpiperidinium bis(trifluoromethane sulfonyl)amide. The reaction was determined to be based on the formation and release of a polymeric network of triflate ions (CF₃SO₃^{鈥?/sup>) on the Mg metal surface, which suggests a novel anode material with anion carriers. An anion battery is also demonstrated using this phenomenon and incorporating an acrylate polymer with 2,2,6,6-tetramethylpiperidine-oxyl side units in the cathode to provide evidence of the rechargeability by the intermediary anion carrier.}