Open AccessAnalysis of the structure arrangement on the thermal characteristics of Li‐ion battery pack in thermoelectric generator
Author(s) -
Zhu WenChao,
Xie Changjun,
Shi Ying,
Li Weibo,
Tang Zebo
Publication year - 2020
Publication title -
energy science and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.638
H-Index - 29
ISSN - 2050-0505
DOI - 10.1002/ese3.777
Subject(s) - battery pack , battery (electricity) , thermoelectric generator , automotive engineering , fluent , lithium ion battery , thermoelectric effect , automotive battery , electrical engineering , materials science , mechanical engineering , engineering , power (physics) , aerospace engineering , computational fluid dynamics , physics , quantum mechanics , thermodynamics
Traditional automobile exhaust contains a large amount of thermal energy. Thermoelectric generators (TEGs) can store recovered electrical energy into battery packs and supply to vehicle‐mounted electrical equipment. A reasonable battery pack structure is designed to facilitate stable vehicle operation based on the actual conditions of the vehicle. This paper presents investigation on thermal performance of air‐cooled li‐ion battery pack in different arrangements. Taking the AVIC (Aviation Industry Corporation of China) lithium battery as the research object, a battery pack model based on T‐type parallel ventilation structure is established in Fluent, and the accuracy of the model is verified through experiments. In the same battery module, there are three typical arrangements of forming battery cells into an equal arrangement, an increasing arrangement, and a decreasing arrangement. The changes of the temperature field of the battery pack under different discharge rates and wind speeds are studied, respectively. Studies have found that battery pack arranged in decreasing order has the best temperature consistency and the temperature difference is reduced by 14.82% and 6.21%, respectively, at 1C and 2C discharge rates, compared to the equally spaced arrangement.