铅碳超级电池混合负极的研究

超级电池是目前很多科研工作者关注的研究领域.制备铅碳超级电池的关键是负极,本文通过研究不同碳材料对混合负极的影响,制备出了具有较高放电容量的铅碳超级电池.循环伏安测试表明,混合负极中活性炭含量为1.0％时电极的可逆性最好,活性炭含量为8.0％时,电极表现出明显的电容特性.混合负极中添加球形石墨的电池低温性能最好,而且在循环过程中电池的失水和内阻变化都较小,并能有效抑制负极铅颗粒的团聚.

Study on the hybrid negative plates for Pb-C ultrabatter

The ultrabatteries are now a field to which many researchers have paid their attention.The key to produce ultrabattery is the technology of negative plate.Based on the study of the influence of different carbons on the hybrid negative plates,we prepared ultrabatteries with high discharge capcity.The results of electrochemistry cyclic voltammetric measurement show that,when the activated carbon content is 1.0 %,the reversibility of hybrid negative electrode is best,and when the activated carbon content is 8.0 %,the electrode is characterized by good capacitance performance.When the spherical graphite was added to hybrid negative plates which can effectively inhibit the agglomeration of lead in the negative plates,the ultrabatteries have the best discharge performance at low temperature,less water loss and less change of internal resistance.