为了解决相变材料潜热有限导致电池热管理失效问题，本文提出了一种新型复合电池热管理系统，该系统采用带有翅片的蛇形液冷管以恢复相变材料的潜热。采用数值模拟方法研究了电池间距、液冷结构参数以及冷却液流速等因素对复合系统热管理性能的影响，并确定了最佳参数取值。结果表明，采用三种液冷运行模式都能将电池模组温度稳定地控制在50°C 以内。此外，通过优化液冷运行时间，可以保证相变材料的潜热得到及时恢复，并且实现相变材料潜热的最大化利用。

To address the problem of battery thermal management failure caused by the limited latent heat of phase change materials (PCMs), this paper proposes a novel composite battery thermal management system. The system utilizes serpentine liquid cooling tubes with fins to recover the latent heat of PCMs. Numerical simulations were employed to study the effects of battery spacing, liquid cooling structural parameters, and coolant flow rates on the thermal management performance of the hybrid system, leading to the determination of optimal parameter values. The results indicate that all three liquid cooling operation modes can consistently maintain the temperature of the battery module below 50°C. Furthermore, by optimizing the operation time of the liquid cooling system, the latent heat of PCMs can be promptly restored, thereby maximizing the utilization of the latent heat of PCMs.