本文選題：鋰離子電池 + 熱模型��； 參考：《化工學(xué)報》2017年08期

【摘要】：針對電動汽車電堆的熱管理系統(tǒng),建立了包含71節(jié)18650型鋰離子電池的電池模組的微通道液冷熱模型。該模型集總處理單電池?zé)徇^程、電池生熱基于實測結(jié)果,模型還特別考慮了電池間導(dǎo)熱�；谠撃Ｐ�,模擬研究了放電倍率、冷卻液入口流速、電池間接觸面積以及電池與水冷管外壁接觸面積對電池模組熱行為的影響。模擬結(jié)果證實了該微通道液冷方案對動力電池模組熱管理的有效性,并且發(fā)現(xiàn):放電倍率的增加會使電池模組內(nèi)單電池溫度增加、模組內(nèi)溫度一致性變差;增大冷卻液流量可以顯著降低電池模組的溫度,并改善其溫度一致性;增大電池間接觸面積可略微提升電池模組溫度一致性,但對控制其最高溫度作用有限;增大電池與液冷管外壁接觸面積可顯著降低電池模組內(nèi)電池的最高溫度,但會使其溫度一致性變差。
[Abstract]:Based on the thermal management system of electric vehicle stack, a model of microchannel cooling and heating was established for 71 battery modules of 18650 type lithium ion batteries. The model lumped the single cell heat process, the heat generation of the cell was based on the measured results, and the heat conduction between the cells was specially considered in the model. Based on the model, the effects of discharge rate, inlet flow rate of coolant, contact area between the battery and the outer wall of the water-cooled tube on the thermal behavior of the battery module were simulated and studied. The simulation results show that the microchannel liquid cooling scheme is effective for thermal management of power battery modules, and it is found that the increase of discharge rate will increase the temperature of single cell in the battery module, and the consistency of the temperature in the module will become worse. Increasing the flow rate of coolant can significantly reduce the temperature of the battery module and improve the consistency of the temperature, increase the contact area between the batteries can slightly enhance the consistency of the temperature of the battery module, but have limited effect on controlling the highest temperature of the battery module. Increasing the contact area between the battery and the outer wall of the liquid-cooled tube can significantly reduce the maximum temperature of the battery in the battery module, but it will make the consistency of the cell temperature become worse.
【作者單位】： 廣東省新能源和可再生能源研究開發(fā)與應(yīng)用重點(diǎn)實驗室中國科學(xué)院可再生能源重點(diǎn)實驗室中國科學(xué)院廣州能源研究所先進(jìn)能源系統(tǒng)研究室;中國科學(xué)院大學(xué);
【基金】：廣東省自然科學(xué)基金-重大基礎(chǔ)研究培育(2015A030308019) 廣東省自然科學(xué)基金項目(2016A030313172) 廣東省新能源和可再生能源研究開發(fā)與應(yīng)用重點(diǎn)實驗室基金項目(Y607jg1001) 中國科學(xué)院“百人計劃”項目(FJ)~~
【分類號】：TM912

【參考文獻(xiàn)】

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1 程昀;李R，

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