阴极
硫化物
钾
阳极
材料科学
碳纤维
储能
钾离子电池
化学
化学工程
离子
电极
冶金
复合材料
磷酸钒锂电池
有机化学
物理化学
功率(物理)
物理
量子力学
复合数
工程类
作者
Zelang Jian,Yanliang Liang,Ismael A. Rodríguez‐Pérez,Yan Yao,Xiulei Ji
标识
DOI:10.1016/j.elecom.2016.07.011
摘要
Potassium-ion batteries (KIBs) are a promising sustainable energy storage technology due to the high abundance and low cost of potassium. Carbon anode materials for KIBs have seen great successes, but the development of cathode materials is yet to catch up. In this study, poly(anthraquinonyl sulfide) (PAQS) is evaluated as a cathode material for KIBs. It exhibits a high reversible capacity of 200 mAh/g, which is the highest value for a potassium storage cathode material. The cell shows two slopes averaged at 2.1 and 1.6 V vs. K+/K. It shows a good cycling performance with the capacity retention of 75% after 50 cycles at a rate of C/10. These preliminary results indicate that PAQS is a promising cathode material for KIBs.
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