三氧化钼/活性炭钠离子电化学电容器

doi:10.3724/SP.J.1095.2013.20562

摘要/Abstract

摘要： 以三氧化钼(MoO3)作为负极材料,活性炭(AC)作为正极材料，组成混合型电化学电容器。研究了电容器在1 mol/L NaPF6的碳酸丙烯酯(PC)中的电化学性能,其电位窗为0~3 V,能量密度和功率密度分别达到33.0 W·h/kg和595.6 W/kg,经1000次循环后容量为第20次的93.8%，库仑效率在经过20次循环后达到95.1%以上。

关键词: 三氧化钼, 活性炭, 钠离子, 电化学电容器

Abstract: Hybrid electrochemical capacitors composed with molybdenum trioxide as negative materials and activated carbon as positive materials were studied in 1 mol/L NaPF6-propylene carbonate（PC）. The voltage window of the electrochemical capacitors is in the range of 0~3 V, the energy density and power density is 33.0 W·h/kg and 595.6 W/kg respectively, the capacity is reduced to 93.8% after 1000 cycles compared with the 20th cycle, and the coulombic efficiency reaches 95.1% of the value of the 20th cycle.

Key words: molybdenum trioxide, activated carbon, sodium-ion, electrochemical capacitors

中图分类号:

O646

赵立平, 齐力, 王宏宇. 三氧化钼/活性炭钠离子电化学电容器[J]. 应用化学, DOI: 10.3724/SP.J.1095.2013.20562.

ZHAO Liping, QI Li, WANG Hongyu*. MoO3/Activated Carbon Sodium-ion Electrochemical Capacitors[J]. Chinese Journal of Applied Chemistry, DOI: 10.3724/SP.J.1095.2013.20562.

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