摘要
锂离子电池随着时间的推移,其性能逐步下降退化直至寿命终结,往往会导致系统整体功能失效,应用于军事目的将直接导致各种无人作战系统无法完成战略战术预期,失去作战能力。分析了锂离子电池电学特性,给出电池内部阻抗与容量退化的关系,提出一种根据容量退化速率优先确定整数变量的条件三参数容量退化经验模型,并通过不同退化速率的锂离子电池退化实验数据对模型的可性行及实用性加以验证,为基于数据驱动的锂离子电池寿命预测和健康管理提供理论支撑。
With the time growing of lithium-ion battery,the performance of the batteries goes down or even gets over,and it always causes great loss both functionally and economically.In military applications,the failure will make unmanned combat system fail to carry out the strategic and tactical tasks.The electrical properties of lithium-ion batteries were analyzed,and the relation between lithium-ion batteries inner impedance and capacity degradation was set up.A conditional three-parameter capacity degradation model in which integer variable was determined firstly according to batteries capacity degradation rate was proposed.Three instance studies were conducted to validate the developed model.The results show that extrapolation of the conditional three-parameter capacity degradation model to failure threshold can be used to estimate the remaining useful life of lithium-ion batteries.
出处
《电源技术》
CAS
CSCD
北大核心
2016年第6期1176-1179,共4页
Chinese Journal of Power Sources
基金
安徽省自然科学基金(1308085ME80)
装备预研基金(914A17050312JB91202)
关键词
锂离子电池
容量退化模型
三参数
lithium-ion battery
capacity degradation model
three-parameters
作者简介
张金（1973-），男，安徽省人，博士，教授。主要研究方向为精密测试技术与仪器。
