化工学报2019，Vol.70Issue(5)：1713-1722,10.DOI:10.11949/j.issn.0438-1157.20181269
新型蜂巢式液冷动力电池模块传热特性研究
Heat transfer characteristics of honeycomb liquid-cooled power battery module
摘要
Abstract
To maintain the performance of the power battery and prolong its service life, the temperature and temperature difference during the operation of the battery module should be maintained within an appropriate range. Thus, a new type of honeycomb liquid-cooled power battery module is proposed. The structure has an inlet/outlet guide plate inside and the battery is honeycomb-like distribution. The cooling liquid contacts with the battery indirectly at 360°, which greatly strengthens the heat transfer effect. On the basis of the numerical simulation and experimental validation of the thermal characteristics of single battery, a new model of honeycomb liquid-cooled battery module was established by computational fluid dynamics(CFD) platform, the thermal behavior of the battery module was studied, and the effects of the coolant flow rate, the coolant temperature of battery on the heat dissipation performance of the battery module were studied. The results show that: (1) Increasing the flow rate of coolant can significantly reduce the maximum temperature of the battery module and improve the temperature uniformity, when the flow rate of coolant increases to 1.5 L/min, the maximum temperature and the maximum temperature difference of the battery module tend to be stable; (2) Decreasing the temperature of coolant can significantly reduce the highest temperature of the battery module, but to a certain extent, the temperature uniformity in the battery module is deteriorated; (3) The coolant flow rate and the coolant temperature have significant influence on the heating characteristics of the battery module. Therefore, liquid cooling is necessary.关键词
单体电池/数值模拟/蜂巢式液冷动力电池模块/实验验证/模型/传热性能Key words
single battery/numerical simulation/honeycomb liquid-cooled power battery module/experimental validation/model/heat transfer performance分类
化学化工引用本文复制引用
冯能莲,马瑞锦,陈龙科,董士康,王小凤,张星宇..新型蜂巢式液冷动力电池模块传热特性研究[J].化工学报,2019,70(5):1713-1722,10.基金项目
国家自然科学基金项目(51075010) （51075010）
北京市教育委员会重点项目(KZ200910005007) （KZ200910005007）
