摘要
高温对阀控式铅酸蓄电池的影响很大，所以在本文中，通过对电池容量、充电接受能力、极化曲线、交流阻抗及容量保持率等的测试来研究了不同温度（30～70℃）对铅酸蓄电池电化学性能的影响，并通过扫描电镜（SEM）观察了反应前后负极活性物质粒径及结构的变化。结果表明：温度的升高促进了电解液在活性物质内部的电荷传输能力，减小了极化和阻抗，从而提高了负极活性物质的导电性，提高了电池的初始放电容量及活性物质利用率；同时也使得电解液干涸、负极板硫酸盐化严重，降低了电池的循环使用寿命。
The influences of temperature on valve-regulated lead-acid.battery are great. In this paper,the influences of different temperature on valve-regulated lead-acid batteries were tested in view of capacity, charge acceptance, polarization, alternating current impedance and capacity retention ratio. The sizes and structures of negative active materials were observed by the scanning electronmicroscope. The results showed that the charge transfer capability of electrolyte was improved, andthe polarization and impedance of the batteries were reduced with temperature increasing. Then theconductivity and utilization of negative active materials were improved, and the initial discharge capacities of batteries were increased. However, due to the electrolyte drying out and the negative plate sulfating seriously, the cycle lives of batteries were decreased.
作者
黄婵
高爱梅
陈红雨
HUANG Chan;GAO Aimei;CHEN Hongyu(School of Chemistry and Environment, South China Normal University, Guangzhou Guangdong 510006, China)
出处
《蓄电池》
2016年第6期255-259,共5页
Chinese LABAT Man
关键词
铅酸蓄电池
负极活性物质
高温
极化
初始放电容量
循环寿命
电解液干涸
负极硫酸盐化
电荷传输
阻抗
lead-acid battery
negative active material
high temperature
polarization
initial discharge capacity
cycle life
electrolyte drying out
negative sulfation
chage trensfer
impedance
作者简介
通讯联系人;通讯联系人
