Huang Xiaodan, Liu Yang, Liu Chao, Zhang Jun, Noonan Owen, Yu Chengzhong
Australian Institute for Bioengineering and Nanotechnology , The University of Queensland , Brisbane QLD 4072 , Australia . Email:
Chem Sci. 2018 May 17;9(23):5178-5182. doi: 10.1039/c8sc01054d. eCollection 2018 Jun 21.
Rechargeable aluminum (Al) batteries are emerging as a promising post lithium-ion battery technology. Herein, we demonstrate a conceptually new design of rechargeable aluminum-selenium (Al-Se) batteries by understanding the selenium chemistry and controlling the electrode reaction. The Al-Se battery consists of a composite cathode including selenium nanowires and mesoporous carbon (CMK-3) nanorods, an Al metal anode and chloroaluminate ionic liquid electrolyte. The working mechanism of the Al-Se battery is the reversible redox reaction of the SeCl/Se pair confined in the mesopores of CMK-3 nanorods. Al-Se batteries deliver a high reversible capacity of 178 mA h g (by Se mass), high discharge voltages (mainly above 1.5 V), and good cycling/rate performances.
可充电铝电池正作为一种有前景的后锂离子电池技术崭露头角。在此，我们通过理解硒化学并控制电极反应，展示了一种概念全新的可充电铝-硒（Al-Se）电池设计。Al-Se电池由包含硒纳米线和介孔碳（CMK-3）纳米棒的复合阴极、铝金属阳极和氯铝酸盐离子液体电解质组成。Al-Se电池的工作机制是局限于CMK-3纳米棒介孔中的SeCl/Se对的可逆氧化还原反应。Al-Se电池具有178 mA h g（按Se质量计）的高可逆容量、高放电电压（主要高于1.5 V）以及良好的循环/倍率性能。
