锂离子动力电池充电优化技术现状
2017-10-12吴海桑陈英杰孙孝峰
吴海桑,刘 伟,陈英杰,耿 华,孙孝峰,杨 耕
(1.清华大学自动化系,北京 100084;2.燕山大学电气工程学院,秦皇岛 066004)
锂离子动力电池充电优化技术现状
吴海桑1,刘 伟2,陈英杰1,耿 华1,孙孝峰2,杨 耕1
(1.清华大学自动化系,北京 100084;2.燕山大学电气工程学院,秦皇岛 066004)
锂离子动力电池的传统充电方法虽然具有设计成本低廉、通用性强、可靠性高等优势,但存在充电时间较长、对锂电池循环寿命影响较大等问题。因此,锂电池充电优化技术已经成为最近的研发热点。首先分析了锂电池的充电机理以及传统充电方法的过程及其存在的问题;然后介绍了锂电池充电优化技术的研究现状,分别以充电时间、循环寿命、存储能量为优化目标分析了锂电池的典型充电优化技术;最后,总结了锂电池充电优化技术的要点。
锂离子动力电池;优化充电;循环寿命;充电时间;存储能量
Abstract:The charging optimization technology of Li-ion battery has become a R&D hotspot recently.There are some problems in traditional charging such as long charging time and large influence on the life cycle,although the method has the advantages of low cost,versatility and high reliability.In this paper,the charging mechanism of Li-ion battery was analyzed and the process and the problems of the traditional charging method were described.Then,the research status of charging optimization technology was introduced,and several typical methods based on the Li-ion battery charging time,the life cycles and the energy storage were analyzed.Finally,the points of the optimization technology for Li-ion battery are summarized.
Keywords:Li-ion battery;charging optimization;life cycle;charging time;energy storage
锂离子动力电池(简称为锂电池)是应用在高能量、高功率需求领域的一类电池,充电管理技术是锂电池应用的重要组成部分。传统充电方法(例如恒流、恒压、恒流恒压等充电方法)具有成本低廉、通用性强、可靠性高等优势,能够满足大部分场合下的应用需求,目前得到了广泛应用[1]。然而,此类充电方法中完全充满锂电池所需充电时间较长,且提高充电电流以缩短充电时间时容易导致锂电池寿命损伤,充入锂电池的能量也有进一步的提升空间。因此,在某些应用场合下传统充电方法仍然无法满足锂电池的实际需求[2]。……
