This study used phenanthraquinone as an organic cathode material for sodium ion batteries,exploring its related room temperature and low temperature electrochemical performance,as well as kinetic performance.The results showed that the sodium ion electrode exhibited a high specific capacity of 124 mAh/g at a current density of 100 mA/g,while exhibiting excellent rate performance.Even after 2000 cycles of charging and discharging at a high current of 5 A/g,its capacity retention rate was 96%,demonstrating good cycling stability.By studying its electrochemical performance at low temperatures,the electrochemical reaction kinetics and interface reaction stability of the electrode material have been demonstrated,and excellent electrochemical performance can still be maintained at low temperatures.Meanwhile,the study of its reaction kinetics further proves the excellent reaction kinetics and reversibility of electrode materials.The rapid electrochemical reaction kinetics have demonstrated its excellent rate performance,adding an option for practical battery development.Therefore,PQ can serve as an ideal electrode material for sodium ion batteries and provide an effective strategy for developing high-performance sodium ion battery materials.
关键词
有机正极材料/钠离子电池/电化学性能/低温/反应动力学
Key words
organic cathode material/sodium ion battery/electrochemical performance/low temperature/reaction kinetics
维普
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