镉镍电池组第三电极充电信号滞后分析及改进  

Analysis and improvement on signal hysteresis of the third electrode for Ni-Cd batteries

作　　者：杨德智[1] 郑智勇[1] 杨学毅[1] 杨恩鑫[1] 谢守韫[1] 

机构地区：[1]中国电子科技集团公司第十八研究所,天津300381

出　　处：《电源技术》2009年第6期489-492,501,共5页Chinese Journal of Power Sources

摘　　要：在镉镍全密封蓄电池内部增加吸氧辅助电极——Ag-Hg电极(下称"第三电极")可(实现)提供地球同步轨道(GEO)卫星镉镍蓄电池组的充电控制信号。分析结果表明,卫星在轨运行时出现第三电极信号电压滞后现象,主要是由于在镉镍电池中所带的第三电极的包覆方式减小甚至阻断了其氧气或电液通道(离子导电通道)。为了改善镉镍蓄电池内第三电极的氧气与电液通道,我们改进了第三电极的包覆设计,从而改进了第三电极信号电压滞后现象,使第三电极充电控制方法更可靠地应用于GEO卫星。The auxiliary oxygen-absorbing electrode, the third electrode, is used inside the hermetically sealed Ni-Cd battery to realize the charge controlling on the geosynchronous orbit （GEO） satellite. The analysis results indicate that the existence of the third electrode hysteresis is due to the former wrapped method of the electrode leading to the decrease/blockage of the oxygen or ionic channel. In order; to improve both the oxygen channel and the ionic channel of the electrode, we change the wrapped design of the third electrode. As results, the signal hysteresis of the third electrode is avoided, which guarantee its applicable reliability to GEO satellite.

关 键 词：地球同步轨道卫星 镉镍蓄电池 吸氧辅助电极 

分 类 号：TM912.2[电气工程—电力电子与电力传动]