标准电池滞后效应的研究

Study of The Hysteresis Effect of Weston Standard Cell

根据电极过程动力学的基本原理,推导出在不同条件下标准电池电动势的表达式。对标准电池电动势——温度滞后及充放电后电池电压的滞后效应作了较深入的研究,对引起滞后的原因给出了理论解释。从而指出滞后效应与电池内在因素(杂质、晶体盐尺寸、电池结构、活性物质等)之间的依赖关系。因此,滞后效应的大小可作为判断电池性能优劣的主要依据。

Abstract On the basis of electrode reactions kineties, a formula is derived for the equilibrium electromative force (EMF) of Weston standard cell in different condition which contains all the patential-determining perameters. studying deeply the hysteresis effect of Weston standard cell EMF/temperature and charging/discharging the origin that causes the hysteresis is proposed onto the theory. We get out the relationship between the hysteresis and the factor of the cell itself (such as impurity, size of the fransistor, the struc-ture of the cell, and active substace etc). Hysteresis effect is a criterion for judging the cell’s property.