碱性锌锰电池漏液的检测

Leak Examination of Alkaline Zn/MnO_2 Dioxide Battery

碱性锌锰电池漏液的检测方法应该是在规定的贮存条件下来检测电池漏液与贮存时间的变化 ,以此来说明电池的耐漏性能 ,但该法所需时间太长 ,不能快速地对电池耐漏性能作出估价 ,所以一般采用加速试验来检测电池漏液情况。由于碱性锌锰电池的漏液机理是由物理因素和电化学因素所引起的 ,所以加速试验方法也应考虑这两个因素。虽然加速漏液试验方法有各种各样 ,但从10Ω连续放电48h的电池电压变化 ,目测漏液 ,停止放电后电池电压回升的变化 ,正负极的电位和锌粉在不同温度的析氢情况 ,以及结合电池漏液的机理分析 ,说明高温高湿加速试验方法较合理 ,较切合实际 ,

Accelerated method of leak examination in alkaline Zn/MnO2 battery has different methods. Through analyses of battery voltage change under 10Ω discharge for 24h, change of battery UOC after stop discharge, leak of battery by direct observation, potential change for positive and negative electrodes, separating hydrogen of zinc powder in electrolyte, and mechanism of physical and electrochemical climb leak etc., the accelerated method of high temperature and high humidity conformes with mechanism of climb leak and is a better method in all accelerated methodes of leak examination.