Cathode Surface-Induced, Solvation-Mediated, Micrometer-Sized Li₂O₂ Cycling for Li-O₂ Batteries

详细信息    查看全文

• 作者：Ji-Jing Xu ; Zhi-Wen Chang ; Ying Wang ; Da-Peng Liu ; Yu Zhang and Xin-Bo Zhang
• 刊名：Advanced Materials
• 出版年：2016
• 出版时间：November 16, 2016
• 年：2016
• 卷：28
• 期：43
• 页码：9620-9628
• 全文大小：3331K
• ISSN：1521-4095

文摘

The “nonsticky” surface of a highly stable RuO₂/carbon nanotube cathode enhances the formation and decomposition of cathode surface-induced, solvation-mediated, micrometer-sized discharge products Li₂O₂ in Li–O₂ batteries and thus significantly improves the specific capacity, overpotentials, and cycle life. These findings contribute to a new understanding how the cathode surface controls Li–O₂ electrochemistry.