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An efficient battery thermal management system is crucial for the safe operation of lithium batteries. In this paper, an embedded composite cooling plate that integrates wavy flow channels with phase change material (PCM) and liquid cooling for thermal management of lithium batteries was designed. From the perspective of recovering the latent heat of thermally saturated PCM, an evaluation method was proposed to quantitatively analyze the latent heat recovery performance, flow energy consumption, and overall performance of different structural configurations, and the optimal structural configuration was obtained by comparing the overall performances: circular flow shape - circular cross-section - double channels - cross-sectional area of 36 mm2 - circular arc angle of 150°. The validity of the numerical model was verified by the temperature experiment on the manufactured cooling plate. Based on the optimal cooling plate structure, the heat generation of lithium batteries during 3 C rate operation was equated using a surface heat source, and the effects of several delayed-start strategies for liquid cooling based on the PCM liquid phase fraction on the thermal management performance were discussed. The results show that the best temperature performance can be achieved by switching on the liquid cooling when the PCM liquid phase fraction reaches 0.6.

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Copyright of Advances in New & Renewable Energy is the property of Editorial Office of Advances in New & Renewable Energy and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Advances in New & Renewable Energy is the property of Editorial Office of Advances in New & Renewable Energy and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)