动力锂电池剩余寿命评价方法及系统的研究

摘要

The life attenuation features of power lithium battery were studied,and the lithium battery life evaluation scheme with high precision based on ampere time metering was put forward.The affecting factors of lithium battery life were discussed;the analysis model of lithium battery life attenuation was established;the hardware and software design of the life evaluation system were completed.The system can achieve the automatic detection of battery parameters such as temperature,current,voltage,and analyze the calculation of residual life of the battery.The designed system can grasp the running status of the battery timely,avoid the battery failure accidents,and guarantee the reliability of power supply system.%对动力锂电池寿命衰减进行了研究,提出了一种基于安时计量法的高精度锂电池寿命评价方案.讨论了影响电池寿命的因素,建立了电池寿命衰减分析模型,完成了寿命评价系统的软硬件设计.该系统可以实现电池温度、电流、电压等参数的自动在线检测,并分析计算电池的剩余寿命.通过这些参数的检查,可以及时了解电池运行状况,避免电池故障造成安全事故,保障供电系统的可靠性.