Co3O4/Co9S8 核壳结构电极准固态超级电容器的制备和性能

杨志儒, 侯文涛, 周海, 杨子, 何浩, 金超

Synthesis of High-performance Core-shell Structured Electrodes of Co3O4/Co9S8 for Quasi-solid-state Supercapacitors

YANG Zhiru, HOU Wentao, ZHOU Hai, YANG Zi, HE Hao, JIN Chao

表3 钴基材料的性能对比

Table 3 Performance comparison of cobalt-based materials

Active material Specific capacitance-current density Long-cycle performance References Co3O4/Co9S8 3.54 F·cm-2-2 mA·cm-2 After 3000 cycles, it retains 77.42% of the initial specific capacitance This work CFF 1.538 F·cm-2-1.5 mA·cm-2 After 10000 cycles, it retains 100% of the initial specific capacitance [34] CC@Co(OH)2:Mn2+@T3 52.2 mF·cm-2-5 mA·cm-2 After 1000 cycles, it retains 85.5% of the initial specific capacitance [35] Co-1/NF 1.925 F·cm-2-1 mA·cm-2 After 10000 cycles, it retains 80.3% of the initial specific capacitance [36] FSCs 1.29 F·cm-2-2 mA·cm-2 After 5000 cycles, it retains 80.13% of the initial specific capacitance [37] Co(OH)2 2.313 F·cm-2-0.4 mA·cm-2 After 7000 cycles, it retains 83% of the initial specific capacitance [38]