CAJ | 학술논문

以电动汽车用方形磷酸铁锂电池为研究对象，通过分析恒流放电过程中有/无高导热石墨片的电池单体表面以及电池模块不同位置间温差的变化情况，研究了高导热石墨片对提高锂离子电池温度均匀性的作用。试验结果表明，高导热石墨片作为强化传热措施，能够有效提高电池单体表面以及电池模块内部的热均匀性，进而提高电动汽车用动力电池热管理系统的性能。
이전동기차용방형린산철리전지위연구대상，통과분석항류방전과정중유/무고도열석묵편적전지단체표면이급전지모괴불동위치간온차적변화정황，연구료고도열석묵편대제고리리자전지온도균균성적작용。시험결과표명，고도열석묵편작위강화전열조시，능구유효제고전지단체표면이급전지모괴내부적열균균성，진이제고전동기차용동력전지열관리계통적성능。
In this paper, we take the rectangular LiFePO4 batteries for EV as the research object to study the effect of high conductive graphite sheets on the temperature uniformity in lithium -ion battery packs through comparing temperature difference changes on battery cell surface and between different cells with or without graphite sheets in the process of constant-current discharge. Experiment result shows that this high conductive graphite sheets, as the enhanced heat transfer method, can effectively increase the thermal uniformity on cell surfaces and between different cells, which means that it is helpful to enhance the performance of thermal management system (TNS) for battery packs in battery electric vehicle(BEV).