Journal
ENERGY
Volume 141, Issue -, Pages 613-623Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.energy.2017.09.083
Keywords
Battery thermal management; Quaternary phase change material composites; Copper mesh; Optimal thermal performance
Categories
Funding
- Science and Technology Planning Project of Guangdong Province, China [20146010128001]
- South Wisdom Valley Innovative Research Team Program [2015CXTD07]
- Scientific and technological project of Administration of Quality and Technology Supervision of Guangdong Province [2015PJ03]
- Science and technology application research and development projects of Guangdong Province, China [2015B010135010]
- Science and Technology Plan Projects of Guangdong Province. China [20168090918015]
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A coupled battery thermal management (BTM) system based on novel quaternary phase change material plate (PCMP) is developed to balance the temperature in rectangular LiFePO4 battery modules. Paraffin (PA), expanded graphite (EG), low-density polyethylene, and copper mesh were combined into a quaternary PCMP to strengthen the heat transfer. The thermal conductivity of the PCMP with double copper mesh (DCM-PCMP) was increased by 36.0% compared with that of PCMP composed of EG and PA. Accordingly, the DCM-PCMP reduced the maximum temperature and maximum temperature difference within the battery module to less than 52.8 and 3 degrees C, respectively, both the lowest among the four methods. The coupled system based on DCM-PCMP and forced air convection showed excellent thermal performance, which contributed to a stable temperature during the cycling process. Thermal simulations showed that the double outstretched copper mesh through the DCM-PCMP disturbed the air flow tempestuously, giving rise to a decrease in thermal resistance. Thus, the temperature distribution inside the battery and temperature uniformity within the battery module were both better optimized. The analysis of the power consumption of the DCM-PCMP method revealed that the optimal heat dissipation performance for the battery module is achieved at an air velocity of 6 m/s. (C) 2017 Published by Elsevier Ltd.
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