The effect of VRLA separator saturation on EV battery life

R. Brost
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引用次数: 3

Abstract

Field and experimental data are used to describe the relationship between the estimated initial separator saturation of VRLA traction batteries and the susceptibility of an EV battery pack to failure under shallow discharge conditions in climates such as that encountered in the southeastern United States. Arguments are made in support of the theory that low or reduced separator saturation leads to escalating oxygen recombination rates in VRLA, which in turn elevates the pack operating temperature and results in increased corrosion and electrolyte dryout. A method to estimate the charge acceptance based on thermal data is also described.
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VRLA隔膜饱和对电动汽车电池寿命的影响
利用现场和实验数据,描述了在美国东南部等气候条件下,VRLA牵引电池估计的初始分离器饱和度与电动汽车电池组在浅放电条件下的失效敏感性之间的关系。有观点认为,分离器饱和度低或降低会导致VRLA中的氧复合速率升高,从而提高电池组的工作温度,导致腐蚀加剧和电解质干燥。本文还描述了一种基于热数据估计电荷接受度的方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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