R20型锌-锰干电池放电过程交流阻抗研究

The Impedence Spectrum of R20 Zn-MnO_2Cell In Discharging Process

本文给出了R20型锌-锰干电池在不同放电状态下的交流阻抗图谱,解释了阻抗变化原因。分析表明,从阻抗半圆求得的电容值C_(?)与放电量之间存在明显的线性关系,这一规律对于Zn-MnO_2干电池电容量预测具有重要的参考价值。

The impedence behaveior of Zn-MnO_2 cell at differrent stages of discharge has been researched over extensive frequency range. It is shown that there is a fine linear relation between impedence component C_p and the stages of discharge. The changes of impedcnce spectrum of cells arc discuss.