标题：Using an AlCl3/Urea Ionic Liquid Analog Electrolyte for Improving the Lifetime of Aluminum-Sulfur Batteries
作者：Bian, Yinghui; Li, Yu; Yu, Zhichao; Chen, Hui; Du, Kewen; Qiu, Chaochao; Zhang, Guoxin; Lv, Zichuan; Lin, Meng-Chang
作者机构：[Bian, Yinghui; Li, Yu; Yu, Zhichao; Chen, Hui; Du, Kewen; Qiu, Chaochao; Zhang, Guoxin; Lv, Zichuan; Lin, Meng-Chang] Shandong Univ Sci & Technol, Co 更多
通讯作者：Lin, MC;Lin, MengChang
通讯作者地址：[Lin, MC]Shandong Univ Sci & Technol, Coll Elect Engn & Automat, Qingdao 266590, Peoples R China.
关键词：aluminium-sulfurbatteries; AlCl3/urea; carbon nanotubes; long cycle; life; high discharge voltage plateau
摘要：Aluminum-sulfur (Al-S) chemistry is attractive for the development of next-generation rechargeable battery systems. However, only a few reversible Al-S cells have been reported until now. This paper demonstrates that the use of an AlCl3/urea electrolyte in Al-S cells is a promising approach to improve the cycle life and reach a high discharge voltage plateau of similar to 1.6-2.0 V. In contrast to the instability of sulfur in the conventional AlCl3/EMIC electrolyte, sulfur is chemically stable in the AlCl3/urea electrolyte, which allows better cell cycling stability. The Al-S cell delivers an initial capacity of similar to 700 mAh g(s)(-1) and maintains a capacity of up to similar to 500 mAh g(s)(-1) after 100 cycles.