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基于红薯基活性炭的超级电容器充放电模型
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Abstract:
恒电流充放电性能测试在超级电容器比电容量、能量密度、功率密度、和库伦效率等性能研究中具有非常重要的意义。本文提出一种新的恒流充放电模型，该模型对超级电容器恒流充放电过程中的电压响应进行建模，利用实验数据和非线性优化方法提出了一组经验性公式，据此研究了超级电容器的充放电过程。所提出的方法经过与制备的红薯基超级电容器给出的实验数据进行了验证，结果显示模型与实验数据具有良好的一致性。
Constant current charge/discharge performance test is of great significance in the study of specific capacity, energy density, power density and coulomb efficiency of supercapacitors. In this paper, a new constant current charging and discharging model is proposed, which is used to model the voltage response of supercapacitor during constant current charging and discharging. Based on the experimental data and nonlinear optimization method, a group of empirical formulas are proposed to study the charging and discharging process of supercapacitor. The proposed method is verified by the experimental data of the activated carbon derived from sweet potato, and the results show that the model is in good agreement with the experimental data.
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https://doi.org/10.1109/MWSCAS.2017.8052901 |
