Highly Stable and High Rate-Performance Na-Ion Batteries Using Polyanionic Anthraquinone as the Organic Cathode

作者：Tang, Wu; Liang, Ren; Li, Di; Yu, Qihang; Hula, Jiahui; Cao, Bei; Fan, Cong^*

来源：ChemSusChem, 2019, 12(10): 2181-2185.

DOI：10.1002/cssc.201900539

• anthraquinone
• batteries
• electrodes
• energy storage
• polyanions

Sodium 9,10-anthraquinone-2,6-disulfonate (Na(2)AQ26DS), with polyanionic character and two O-Na ionic bonds, is found to be a highly stable organic cathode in Na-ion batteries, delivering capacities of approximately 120mAhg(-1) for 300cycles (50mAg(-1)) and around 99mAhg(-1) for 1000cycles (1Ag(-1)). These results are the best performance reported to date for small-molecule, anthraquinone-based organic cathodes in Li-, Na-, or K-ion batteries.

• 单位
  电子科技大学; 香港中文大学