Open AccessSimulation Study on Liquid Cooling of Lithium-ion Battery Pack with a Novel Pipeline Structure
Author(s) -
Chao Lv,
Tianyuan Xia,
Hengbo Yin,
Minghe Sun
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2125/1/012062
Subject(s) - battery pack , battery (electricity) , coolant , nuclear engineering , materials science , lithium ion battery , pipeline (software) , lithium (medication) , volumetric flow rate , work (physics) , ion , computer cooling , power (physics) , automotive engineering , thermodynamics , chemistry , mechanical engineering , engineering , thermal management of electronic devices and systems , physics , medicine , organic chemistry , endocrinology
Lithium-ion battery is widely used as the mainstream power source of electric vehicles owing to its high specific energy and low self-discharge rate. However, the performance of the lithium-ion battery is largely hindered by its heat dissipation issue. In this paper, lithium-ion battery pack with main channel and multi-branch channel based on liquid cooling sys-tem is studied. Further, numerical simulation was used to analyze the effects of coolant temperature and flow rate on cooling performance. Based on the original pipeline structure, a new pipeline structure was proposed in the present work. The results show that increasing the cool-ant flow rate not only reduces the maximum temperature of the battery pack, but also reduces the temperature difference. Lowering the coolant temperature could largely decrease the maximum temperature of the battery pack, but it tends to widen the temperature difference and worsen the temperature uniformity. Up-on comparison, maximum temperature is found to be decreased by 0.44K, whereas, the temperature difference of the battery decreased and the temperature uniformity is improved.