多孔电极内部离子电阻的测量  

Determination of the internal ionic resistance of porous electrodes

作　　者：金先波[1] 庄林[1] 陆君涛[1] 

机构地区：[1]武汉大学化学系,湖北武汉430072

出　　处：《电池》2003年第2期90-92,共3页Battery Bimonthly

摘　　要：对4种测试多孔电极内离子电阻的方法,即线性电势扫描法、电势阶跃计时库仑法、电流阶跃计时电势法和交流阻抗法进行了比较性研究。4种方法都可在双层区对符合一维传输线模型的多孔电极进行离子电阻的测定。在多数场合,所提出的简化计时库仑法因操作简易和重现性好而最值得推荐,如电极的双层区电势范围很窄,则交流阻抗较为合适。Four methods including linear potential scan, potential step chronocoulometry, current step chronopotentiometry and AC impedance for determining the internal ionic resistance of porous electrodes were studiedThe four methods were all applicable to determining the internal resistance of porous electrodes conforming to the one dimensional transmission line modelThe simplified chronocoulometry proposed was most recommendable due to easy operation and high reproducibility In case the double layer region was narrow, AC impedance was most suitable

关 键 词：银锌电池 多孔电极 离子电阻 测量 电势法 交流阻抗法 

分 类 号：TM910.1[电气工程—电力电子与电力传动]