基于锂电池的空间电源系统钝化研究  

Passivation of spacecraft power system based on Li-ion batteries

作　　者：郑犁[1] 李康 章玄 姜垚先 李键 ZHENG Li;LI Kang;ZHANG Xuan;JIANG Yaoxian;LI Jian(Institute of Telecommunication Satellites,China Academy of Space Technology,Beijing 100094,China)

机构地区：[1]中国空间技术研究院通信与导航卫星总体部,北京100094

出　　处：《电源技术》2022年第1期100-103,共4页Chinese Journal of Power Sources

摘　　要：针对空间能源系统在卫星寿命末期的钝化需求,分析了不同轨道卫星锂电池的温度条件,同时分析了锂电池位置、卫星姿态对其温度的影响。基于上述分析的温度范围,研究了锂电池在钝化后发生热失控的可能性和影响因素,分析得到基于锂电池的空间电源系统钝化需求。在此基础上,提出了4种可行的钝化解决方案,并从受空间环境影响程度、额外增加元器件的情况以及钝化后电路受电流应力情况等方面进行对比,分析结果表明,旁路钝化方案是基于锂离子电池的电源系统钝化的首选方案。With the demand of spacecraft power passivation these years,the temperature of Li-ion batteries with 15 years operation life and 25 years of operate passivation life in different orbit were analyzed.Based on the temperature range above,the possibility of thermal runaway and its contributing factors for Li-ion batteries were analyzes.The request of passivation of spacecraft power system based on Li-ion batteries was summarized.On this basis,4 kinds of feasible passivation solutions were proposed,and they were compared with the influence by space environment,additional components or circuits and the current stress after passivation.The results show that bypass resistances is the best solution for Li-ion batteries based power systems.

关 键 词：锂离子电池 钝化 空间电源系统 

分 类 号：TM912[电气工程—电力电子与电力传动]