KOH浓度对密封锌镍电池性能的影响  

Influence of KOH concentration on the performance of sealed Ni-Zn battery

作　　者：王升威[1] 杨占红[1] 曾利辉[1] 王学文 

机构地区：[1]中南大学化学化工学院,湖南长沙410083 [2]新乡联达华中电源有限公司,河南新乡453731

出　　处：《电池》2007年第6期450-452,共3页Battery Bimonthly

摘　　要：考察了电解液中的KOH浓度对AA型密封锌镍电池充放电电压、充放电内阻、放电容量及循环寿命的影响。结果表明,当电解液中的KOH浓度较高时,电池的充电电压较低,内阻较小,放电容量较高。KOH浓度越高,电池的循环寿命越长。当KOH浓度为7.5mol/L时,电池的循环寿命为120次(放电容量为设计容量的60%)。The effects of KOH concentration in electrolyte on the charge-discharge voltage, charge-discharge internal resistance, discharge capacity and cycle life of AA type sealed Ni-Zn battery were examined. The results showed that the battery had lower charge voltage,smaller internal resistance and higher discharge capacity when the KOH concentration in electrolyte was higher. The cycle life of the battery was prolonged with the increasing of KOH concentration. When the KOH concentration was 7.5 mol/ L,the cycle life of the battery was 120 times （discharge capacity was 60% of designed capacity）.

关 键 词：锌镍电池 电解液 浓度 循环寿命 电压 

分 类 号：TM911[电气工程—电力电子与电力传动]