摘要
由PbCO3 、添加剂和硫酸溶液分别混合成正、负极膏 ,制成涂膏式铅酸蓄电池电极 .研究了不同化成方法和充放电条件对电极放电容量和活性物质利用率的影响 .结果表明 ,正极以 2 .0mA/cm2 化成后 ,在同一电流密度下充放电时 ,其性能优于较高电流密度化成的电极 ,活性物质利用率达 74.4% ;以不对称方波电流化成的负极 ,其活性明显高于恒电流化成负极的活性 .这种电极在 2 .0mA/cm2 放电条件下 ,活性物质利用率达 90 %以上 .文中还讨论了由上述正负极组成的简单模拟电池的放电行为 .
The positive and negative pastes were prepared by mixing PbCO 3 and H 2SO 4 solution as well as relative additives, respectively. The effects of the various formation methods and the charge/discharge conditions on discharge capacity and active material utilization of both electrodes were examined. The results indicate that the performance of the positive electrode formed at 2.0 mA/cm 2 is better than that formed at higher current density under the same charge/discharge condition, the PAM utilization reaches 74.4 % under discharging at 2.0 mA/cm 2; and the property of the negative electrode formed by unsymmetrical square wave is superior to that formed by constant current when using the same density, the AM utilization of the former is more than 90 % under discharging at 2.0 mA/cm 2. Moreover, the discharge behavior of a lead/acid battery composed of the above positive and negative electrodes was discussed.
出处
《电化学》
CAS
CSCD
2000年第1期95-101,共7页
Journal of Electrochemistry
基金
国家自然科学基金!资助项目 (2 96 770 13)
关键词
碳酸铅
铅酸蓄电池
涂膏式电极
电极制备
Lead carbonate, Lead/acid battery, Paste electrodes, Preparation