期刊
ENERGIES
卷 10, 期 11, 页码 -出版社
MDPI
DOI: 10.3390/en10111723
关键词
battery; thermal management; heat transfer coefficient; temperature rise models
资金
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology (Chongqing University) [2007DA10512716416]
- Science Funds for the Young Innovative Talents of HUST [201503]
- National Natural Science Foundation of China [51377149]
- University Nursing Program for Young Scholars with Creative Talents in Heilongjiang Province [UNPYSCT-2016164]
This study investigated the heat problems that occur during the operation of power batteries, especially thermal runaway, which usually take place in high temperature environments. The study was conducted on a ternary polymer lithium-ion battery. In addition, a lumped parameter thermal model was established to analyze the thermal behavior of the electric bus battery system under the operation conditions of the driving cycles of the Harbin city electric buses. Moreover, the quantitative relationship between the optimum heat transfer coefficient of the battery and the ambient temperature was investigated. The relationship between the temperature rise (T-r), the number of cycles (c), and the heat transfer coefficient (h) under three Harbin bus cycles have been investigated at 30 degrees C, because it can provide a basis for the design of the battery thermal management system. The results indicated that the heat transfer coefficient that meets the requirements of the battery thermal management system is the cubic power function of the ambient temperature. Therefore, if the ambient temperature is 30 degrees C, the heat transfer coefficient should be at least 12 W/m(2)K in the regular bus lines, 22 W/m(2)K in the bus rapid transit lines, and 32 W/m(2)K in the suburban lines.
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