电池(电)
佩多:嘘
聚(3,4-亚乙基二氧噻吩)
材料科学
电解质
法拉第效率
铝
有机自由基电池
电极
离子液体
化学工程
储能
纳米技术
复合材料
聚合物
化学
有机化学
功率(物理)
催化作用
物理化学
工程类
物理
量子力学
作者
Theresa Schoetz,Ben Craig,Carlos Ponce de León,Andreas Bund,Mikito Ueda,Chee Tong John Low
标识
DOI:10.1016/j.est.2019.101176
摘要
Aluminium is one of the promising negative electrode materials for modern batteries. It is environmentally abundant, affordable and recyclable, and its three-electron redox reaction offers high theoretical specific energy and power. However, the development of a suitable positive electrode continues to limit the practical performance of aluminium batteries. In this study, the application of a 3D conductive polymer poly(3,4-ethylenedioxythiophene) (PEDOT) as a potential positive electrode material is reported. The battery performance, C-rate versus capacity extraction and successive charge/discharge cycling of a full cell (aluminium (-); PEDOT (+); EMImCl-AlCl3 ionic liquid electrolyte) is investigated. The design of the PEDOT electrode (using 3D reticulated vitreous carbon as substrate) is studied, and is supported by microstructure characterisation. The aluminium-PEDOT battery provides 50–64 Wh kg−1 specific energy and 32–40 W kg−1 specific power. The battery has a coulombic efficiency >95%, stable operation over 100 cycles and charge rates up to 80C. In summary, direct and meaningful progress has been made towards achieving useful capacity and cycling stability from aluminium batteries intended for future energy storage.
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