碱锰电池的小电流恒阻放电特性  

Constant-Resistance Discharge Characteristics of Alkaline Batteries with Low Currents

作　　者：莫兴丹 刘伟 谢健 罗嵘[2] 胡顺仁 MO Xingdan;LIU Wei;XIE Jian;LUO Rong;HU Shunren(School of Electrical and Electronic Engineering,Chongqing University of Technology,Chongqing 400054,China;Department of Electronic Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]重庆理工大学电气与电子工程学院,重庆400054 [2]清华大学电子工程系,北京100084

出　　处：《重庆理工大学学报（自然科学）》2020年第5期220-225,共6页Journal of Chongqing University of Technology：Natural Science

基　　金：国家自然科学基金项目(61601069);重庆市教委科学技术研究项目(KJ1600935);重庆市基础科学与前沿技术研究专项(cstc2017jcyjAX0254)。

摘　　要：碱锰电池放电特性的现有研究工作,忽略了低功耗设备的工作电流范围。基于这一现状,通过实际测量研究了碱锰电池的小电流放电特性。结果表明,小电流放电特性与大电流放电特性有着显著的区别:小电流放电的电压-时间关系曲线虽然变化较慢,但电压波动较大。这说明在小电流放电过程中,松弛效应并不只在放电停止时出现,在放电过程中也会出现。在电压进入0.7~0.8 V之前,放电量变化较快。电压越接近0.7~0.8 V,电池利用越充分。然而,现有低功耗设备的截止电压较高,仅能利用电池容量的15%~30%。为了实现电池容量的充分利用,需要降低设备的截止电压或改变电池的连接方式。Recent researches on discharge characteristics of alkaline batteries neglect the operating current range of low-power devices. Based on this situation,discharge characteristics of alkaline batteries with low currents were studied by experiments. It is shown that there is notable difference between the characteristics of low current discharge and that of high current discharge. The voltagetime curve of low current discharge varies slowly,but the voltage fluctuates greatly. This suggests that the relaxation effect occurs not only when discharge stops,but also during the discharge process.Before voltage goes into 0. 7 ~ 0. 8 V interval,discharged quantity of electricity changes rapidly. The closer the voltage is to 0. 7 ~ 0. 8 V interval,the more efficient the battery is utilized. However,the cut-off voltage of existing low power devices is a little high and only 15% ~ 30% of the battery capacity can be consumed. Therefore,to make full use of the battery capacity,it is necessary to reduce the cut-off voltage of devices or change the connection mode of batteries.

关 键 词：碱锰电池 放电特性 电池容量 低功耗设备 剩余电量 松弛效应 

分 类 号：TP368[自动化与计算机技术—计算机系统结构]