Study of Thermal Management System Using Composite Phase Change Materials and Thermoelectric Cooling Sheet for Power Battery Pack

Chuan-Wei Zhang, Shang-Rui Chen, Huai-Bin Gao, Ke-Jun Xu, Zhan Xia and Shuai-Tian Li
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Chuan-Wei Zhang: College of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China
Shang-Rui Chen: College of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China
Huai-Bin Gao: College of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China
Ke-Jun Xu: College of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China
Zhan Xia: College of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China
Shuai-Tian Li: College of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China

Energies, 2019, vol. 12, issue 10, 1-14

Abstract: Scientific and reasonable battery thermal management systems contribute to improve the performance of a power battery, prolong its life of service, and improve its safety. Based on TAFEL-LAE895 type 100Ah ternary lithium ion power battery, this paper is conducted on charging and discharging experiments at different rates to study the rise of temperature and the uniformity of the battery. Paraffin can be used to reduce the surface temperature of the battery, while expanded graphite (EG) is added to improve the thermal conductivity and viscosity of the composite phase change material (CPCM), and to reduce the fluidity after melting. With the increase of graphite content, the heat storage capacity of phase change material (PCM) decreases, which affects the thermal management effect directly. Therefore, this paper combines heat pipe and semiconductor refrigeration technology to transform heat from the inner CPCM to the thermoelectric cooling sheet for heat dissipation. The results show that the surface temperature of the battery can be kept within a reasonable range when discharging at high rate. The temperature uniformity of the battery is improved and the energy of the battery is saved.

Keywords: power battery; thermal management system; composite phase change material; thermoelectric cooling (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (7)

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