Experiments on thermal run-a-way and its management for electrolyte immobilized lead-acid batteries

[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI:10.1109/INTLEC.1991.172367

F. Vaccaro, R.E. Landwehrle

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引用次数: 10

Abstract

The thermal characteristics of the AT&T VR electrolyte immobilized (EI) lead-acid battery have been evaluated from ambient temperatures to 158 degrees F and float voltages to 2.5 V/cell. The intent of this experimental program was to determine and evaluate the battery's thermal behavior in applications and configurations in which it is presently used. The test program included free-standing cells and a 48 V 375 Ah battery in a close packed cubical configuration. It was concluded that free-standing cells and cells closely packed in a cube configuration will not exhibit thermal runaway when floated at 2.27 V/cell and temperatures at or below 131 degrees F. The 48 V 375 Ah battery at 77 degrees F and potentials above 2.5 V/cell exhibits the symptoms of thermal runaway. When elevated temperature and voltage conditions are encountered it is recommended that the battery float voltage be temperature compensated. The recommended coefficient to temperature compensate float voltage is -3 mV/ degrees C. The derivation of this coefficient is given.<>

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电解液固定化铅酸电池热运行试验及管理

研究了AT&T VR电解液固定化(EI)铅酸电池在环境温度至158华氏度、浮子电压至2.5 V/cell时的热特性。本实验计划的目的是确定和评估电池在目前使用的应用和配置中的热行为。测试程序包括独立的电池和一个48v 375 Ah的电池，在一个封闭的立方体配置中。得出的结论是，独立式电池和紧密排列成立方体结构的电池在2.27 V/电池、温度在131华氏度或低于131华氏度时，不会出现热失控的症状。48 V 375 Ah电池在77华氏度、电位高于2.5 V/电池时，表现出热失控的症状。当遇到温度和电压过高的情况时，建议对电池浮压进行温度补偿。温度补偿浮子电压的推荐系数为-3 mV/℃，给出了该系数的推导

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[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91

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