VXG的音标

The oxidation and reduction peaks of cyclic voltammetry were symmetrical and steady, the peak currents had large values, which showed that the electrochemical reversibility and activity of PPy/ VXG were good.

循环伏安曲线的氧化-还原峰较对称和稳定，且具有较大的峰电流，表明PPy/VXG具有较好的电化学可逆性和较高的电极活性；

The results showed that the charge-discharge of PPy/ VXG composite cathode material was realized by doping-undoping of anions and lithium ions.

结果表明：PPy/VXG复合正极材料是通过阴离子的掺杂/脱掺杂及锂离子的嵌脱反应来实现充放电的；

The electrochemical performances of PPy/ V_2O_5 and PPy/ VXG were compared.

比较了PPy/V2O5及PPy/VXG复合材料的电化学性能，PPy/VXG较PPy/V2O5容量有所下降，但循环性能得到提高，且开路电压的静置稳定性较好。