Promoting Li₂O₂ oxidation via solvent-assisted redox shuttle process for low overpotential Li-O₂ battery

详细信息    查看全文

• 作者：Wang Zhang^aAuthor Vitae ; Yue Shen^a ; ^{shenyue1213@hust.edu.cn}Author Vitae ; Dan Sun^aAuthor Vitae ; Zhimei Huang^aAuthor Vitae ; Jun Zhou^bAuthor Vitae ; He Yan^cAuthor Vitae ; Yunhui Huang^a ; ^{huangyh@hust.edu.cn}Author Vitae
• 关键词：Lithium-oxygen battery ; Cathode catalyst ; Redox mediator ; Electrolyte ; Electrochemical performance
• 刊名：Nano Energy
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：30
• 期：Complete
• 页码：43-51
• 全文大小：1678 K
• 卷排序：30

文摘

Reaction rate between oxidized redox mediator and Li2O2 is the speed-limiting step of the redox shuttle mechanism. Solvation of Li2O2 enhances the efficiency of redox shuttle mechanism. N-butanol has the proper proton activity to activate Li2O2 without triggering disproportionation. Li2O2-graphite cell is designed to avoid fake reversible capacity from unlimited Li anode.