循环老化对锂离子电池开路电压的影响

Q3 Engineering
S. Barcellona, L. Codecasa, Silvia Colnago, L. Piegari
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引用次数: 3

摘要

目前,关于绿色交通和能源生产的问题是研究新型储能系统的主要方向。其中,锂离子电池是目前最热门的研究技术之一。电池建模和参数估计是建立可靠的电池管理系统的重要挑战,能够使电池在适当的条件下工作。荷电状态(SOC)估计是预测当前电池可用能量的重要方法之一。许多评估SOC的方法都需要了解开路电压(OCV)曲线。在文献中,可以找到许多OCV模型作为SOC的函数。另一个重要的方面是这些曲线如何随着电池退化而变化。一些研究讨论了考虑老化的OCV- soc曲线的修正,但似乎缺乏OCV曲线作为交换绝对电荷的函数对老化的依赖性。本文提出并分析了考虑循环老化的ocv充电曲线的简单模型。进行了一项实验来验证所提出的模型。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Cycle Aging Effect on the Open Circuit Voltage of Lithium-Ion Battery
Nowadays, the issues concerning green mobility and energy production are leading researchers to study novel energy storage systems. Among them, lithiumion batteries are currently one of the most popular technologies under study. Battery modeling and parameter estimation are important challenges to build reliable battery management systems able to allow the battery to work in proper conditions. State of charge (SOC) estimation is one of the most important for predicting the current battery available energy. Many methods to estimate the SOC need knowledge of the open circuit voltage (OCV) curve. In the literature, it is possible to find a lot of OCV models as a function of SOC. Another important aspect is how these curves change as a function of battery degradation. Some studies deal with the correction of the OCV-SOC curve considering the aging, but the dependency of the OCV curve as a function of the exchanged absolute charge on aging seems to be lacking. In the present work, a simple model of the OCV-charge curve that considers the cycle aging is proposed and analyzed. An experimental campaign was carried out to validate the proposed model.
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来源期刊
AUS
AUS Engineering-Architecture
CiteScore
0.40
自引率
0.00%
发文量
14
期刊介绍: Revista AUS es una publicación académica de corriente principal perteneciente a la comunidad de investigadores de la arquitectura y el urbanismo sostenibles, en el ámbito de las culturas locales y globales. La revista es semestral, cuenta con comité editorial y sus artículos son revisados por pares en el sistema de doble ciego. Periodicidad semestral.
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