Abstract:

Through the comparison of different storage period, the thermodynamic characteristics of Zn-Ag battery AgO capacity characteristics, the effectiveness of the thermodynamic method study of AgO thermal stability and the feasibility of the battery to meet or expand the storage period are evaluated. Based on the he reaction depth at the peak and moderate peak temperature of DSC curve under different constant temperature heating conditions. A method for determining the kinetic factors E and A of AgO decomposition reaction was proposed. With the mathematical model, the decay rates of Zn-Ag battery with different storages period and under different temperatures were compared, and the method of accelerated life test for ffor Zn-Ag battery is got.

Key words: Zn-Ag battery, capacity decay, thermal decomposition, accelerated life test method