Ethylene sulfite based electrolyte for non-aqueous lithium oxygen batteries

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• 作者：Chaolumen Wu^a ; Chen-Bo Liao^a ; Lei Li^a ; ^{lilei0323@sjtu.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; Jun Yang^b
• 关键词：Lithium&ndash ; oxygen batteries ; Electrolyte ; Ethylene sulfite ; Cycling stability ; Electrochemical stability
• 刊名：Chinese Chemical Letters
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：27
• 期：9
• 页码：1485-1489
• 全文大小：650 K

文摘

Non-aqueous lithium–oxygen (Li–O₂) batteries have been considered as the superior energy storage system due to their high-energy density, however, some challenges limit the practical application of Li–O₂ batteries. One of them is the lack of stable electrolyte. In this communication, a novel electrolyte with ethylene sulfite (ES) used as solvent for Li–O₂ batteries was reported. ES solvent showed low volatility and high electrochemical stability. Without a catalyst in the air-electrode of Li–O₂ batteries, the batteries showed high specific capacity, good round-trip efficiency and cycling stability.