【摘要】 将制备的NiCo₂O₄电极进行电化学性能测试，结果表明，NiCo₂O₄电极活性材料通过准可逆的氧化还原反应进行储能，表现出良好的电化学性能.进而使用Simulink仿真模拟了非对称超级电容器单体的放电过程，并使用AVL CRUISE仿真计算了超级电容器-锂离子电池复合储能系统的电动汽车行驶过程.结果表明，汽车在WLTC循环工况下的最大电池功率为38.0 kW,行驶时间为4.9 h,续航里程为224.4 km,相比单独的锂离子电池储能系统最大电池功率减小了31.3%,续航里程提高了11.4%.超级电容器对复合储能系统的电动汽车起到了平衡电池功率和提高续航里程的作用.更多还原

【Abstract】 The electrochemical performance of NiCo₂O₄ electrode was tested. The results show that the active material of NiCo₂O₄ electrode is stored by quasi-reversible redox reaction and has good electrochemical performance. Then, the discharge process of asymmetric supercapacitor was simulated by Simulink, and the driving process of electric vehicle with supercapacitor and lithium-ion battery compound energy storage system was simulated by AVLCRUISE. The results show that the maximum battery power is 38.0 kW, the driving time is 4.9 h, and the driving range is 224.4 km under the WLTC cycle condition. Compared with the single lithium-ion battery energy storage system, the maximum battery power is reduced by 31.3%, and the driving range is increased by 11.4%. Supercapacitors play a role in balancing battery power and improving driving range in electric vehicles with compound energy storage system.更多还原