为解决铋基材料作为电极稳定性差的问题，采用电化学电镀、退火等手段在碳织布表面生长纳米片状的大层间距碳酸氧铋制备碳酸氧铋/碳织布负极。经过电化学测试表明，制备的碳酸氧铋/碳织布负极在7 mA/cm²下实现了2.51 F/cm²的高面积电容值，在20 mA/cm²充放电5 000圈后电容值仍保持最大值的88.73%，与同等实验条件下制备的铋/碳织布相比提升了31.99%，展现了良好的电化学性能。

In order to solve the problem that bismuth-based materials as electrode show poor stability, Bi₂O₂CO₃/CC anode is prepared by growing large layer-spacing bismuth-oxycarbonate on the surface of carbon cloth through electrochemical electroplating and annealing methods.The electrochemical test shows that the prepared Bi₂O₂CO₃/CC achieves a high area capacitance of 2.51 F·cm^-2 at 7 mA·cm^-2, and its capacitance remains 88.73% of the maximum value after 5 000 cycles of charging and discharging at 20 mA·cm^-2, which is 31.99% higher than Bi/CC prepared under the same experimental conditions, showing good electrochemical performance.

杨壮(1999-),男,硕士生,研究方向为超级电容器,yangzhuang@sjtu.edu.cn