材料科学
阴极
密度泛函理论
铝
化学工程
电流密度
电化学
衍生工具(金融)
有机自由基电池
电极
纳米技术
复合材料
物理化学
计算化学
金融经济学
物理
工程类
量子力学
经济
化学
作者
Qing Liu,Wenbin Luo,Shuangxing Lu,Zhen Zhang,Zi‐Sheng Chao,Jincheng Fan
标识
DOI:10.1021/acsami.2c14365
摘要
Aluminum batteries (ABs) have triggered increasing interest due to the geochemically abundant aluminum, high theoretical energy density, and excellent safety characteristics. Organic materials with engineered active groups have the advantages of low cost, flexible structural design, and benignity to the environment. Herein, we report an appropriately heat treated aromatic carbonyl derivative PTCDA/500 °C as an organic cathode material for ABs. The constructed aluminum organic batteries exhibited excellent cycling stability, with a capacity retention rate of 91% (111 mAh/g) after 200 cycles at a current density of 1000 mA/g and also displayed the more excellent rate capability at different current densities. In addition, the electrochemical reaction mechanism of AlCl2+ and PTCDA was studied based on density functional theory (DFT) as well as the ion diffusion behavior on the electrode surface being probed. The research results provide new ideas for the development of green and sustainable aluminum organic batteries.
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