The behaviour of the coup de fouet of valve-regulated lead–acid batteries

Pascoe, P.E.; Anbuky, A.H.

doi:10.1016/s0378-7753(02)00316-6

Cited by 36 publications

(14 citation statements)

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“…Ambient temperature is a major influence on the battery capacity. Several studies [13,14] have indicated that the lower the temperature, the fewer the capacity available. In pulse discharge applications, the degradation in capacity becomes more significant.…”

Section: Discharge Capacitymentioning

confidence: 99%

Enhanced performance of hybrid power source under low temperature

et al. 2012

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The performance of a battery-electrical double layer capacitor (EDLC) hybrid power source at low ambient temperature has been experimentally analyzed. EDLC can enhance the performance of lead-acid battery as it acts as a buffer during charging and discharging, and plays more significant role at low temperature than room temperature. The behaviors of current and voltage of both battery and EDLC have been detailed studied, and described by a mathematical model. With EDLC assistance, the battery can maintain longer discharge duration at -25 and -10°C, compared with the battery alone. Adding an EDLC in parallel with the battery exhibits a considerable capacity increase compared to battery standalone in continuous discharge processes: from 13.6 to 36.5 %, corresponding to 25 to 200 A. These improvements of capacity become even more significant at low temperature. The increases in available capacity of different pulse duty, amounted to 72, 58, and 4 % at 0.1, 0.5, and 0.9 duty cycle values, compared to the capacity measured at constant current rate, respectively (calculated by 50 A discharge).

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Section: Discharge Capacitymentioning

confidence: 99%

Enhanced performance of hybrid power source under low temperature

et al. 2012

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“…Once the discharge is initiated the discharge voltage of a fully charge VRLA battery will drop abruptly to a trough. A recovery in the voltage occurs, where a plateau voltage is reached, signalling the end of what is known as the coup de fouet [1][2][3][4][5]. Both the negative and positive electrodes contribute to the coup de fouet.…”

Section: Test Proceduresmentioning

confidence: 99%

“…Both the negative and positive electrodes contribute to the coup de fouet. The response of the negative electrode is, however, much faster than that of the positive electrode [3,4]. The coup de fouet phenomenon is only present in lead acid based batteries.…”

Section: Test Proceduresmentioning

confidence: 99%

“…This is due to the coup de fouet. The abruptness of the coup de fouet is primarily dependent on the discharge rate relative to the size (capacity) of the battery [1][2][3][4]. Therefore the sampling frequency required to acquire the trough voltage is also dependent on the discharge rate as well as the voltage acquisition resolution.…”

Section: Voltagementioning

confidence: 99%

“…Although the VRLA battery is based on well-established technology, there are still many poorly understood mechanisms. An example is the coup de fouet, which occurs at the start of discharge of a fully charged battery [1][2][3][4]. This phenomenon will be described in more detail in a later section.…”

Section: Introductionmentioning

confidence: 99%

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Automated battery test system

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Modeling and Simulation of Flow Batteries

Esan

Shi

Pan

et al. 2020

Advanced Energy Materials

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Flow batteries have received extensive recognition for large‐scale energy storage such as connection to the electricity grid, due to their intriguing features and advantages including their simple structure and principles, long operation life, fast response, and inbuilt safety. Market penetration of this technology, however, is still hindered by some critical issues such as electroactive species crossover and its corresponding capacity loss, undesirable side reactions, scale‐up and optimization of structural geometries at different scales, and battery operating conditions. Overcoming these remaining challenges requires a comprehensive understanding of the interrelated structural design parameters and the multivariable operations within the battery system. Numerical modeling and simulation are effective tools not only for gaining an understanding of the underlying mechanisms at different spatial and time scales of flow batteries but also for cost‐effective optimization of reaction interfaces, battery components, and the entire system. Here, the research and development progress in modeling and simulation of flow batteries is presented. In addition to the most studied all‐vanadium redox flow batteries, the modelling and simulation efforts made for other types of flow battery are also discussed. Finally, perspectives for future directions on model development for flow batteries, particularly for the ones with limited model‐based studies are highlighted.

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The behaviour of the coup de fouet of valve-regulated lead–acid batteries

Cited by 36 publications

References 1 publication

Enhanced performance of hybrid power source under low temperature

Enhanced performance of hybrid power source under low temperature

Automated battery test system

Modeling and Simulation of Flow Batteries

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