The production of electric vehicles and their accessories is grooming day by day in the automotive industry. The heart of these electric vehicles is the power source, which is known as batteries. The capacity and performance of such batteries demand a high rating, due to the customer's need and improved vehicle features. Unfortunately, the batteries are facing thermal failures caused by the poor thermal management approach. Li-ion batteries are the most familiar ones which have a very high energy density compared to others. But, these batteries lead to the breakdown of ions and lithium plating because of the fluctuation in temperature distribution and fast charging characteristics. The temperature distribution varies with respect to loading and application. However, this process is accompanied by thermal runaway, which may result in the fatal destruction of batteries. To overcome such issues, the present work selected looped heat pipes (LHP) as a device to transfer the excessive temperature on batteries using nanofluids. Water, Ethylene glycol and acetone were selected as working fluids along with graphene oxide (GO) Nanoparticles. The experiment is conducted for a constant heat input of 30W and various filling ratios (20%, 35%, 50%, 65%). Stability, thermal conductivity, thermal resistance and temperature distributions are discussed. The experiment results are validated with Computational fluid dynamics.

电动汽车及其配件的生产在汽车行业日趋完善。这些电动汽车的核心是电源，也就是众所周知的电池。由于客户的需要和改进的车辆特性，此类电池的容量和性能需要高评级。不幸的是，由于热管理方法不佳，电池面临着热故障。锂离子电池是最常见的电池，与其他电池相比，它具有非常高的能量密度。但是，由于温度分布的波动和快速充电特性，这些电池会导致离子和锂镀层的击穿。温度分布因负载和应用而异。然而，这个过程伴随着热失控，这可能会导致电池的致命破坏。为了克服这些问题，目前的工作选择了环形热管（LHP）作为使用纳米流体传递电池过度温度的装置。水、乙二醇和丙酮与氧化石墨烯 (GO) 纳米颗粒一起被选为工作流体。该实验是在 30W 的恒定热输入和各种填充率（20%、35%、50%、65%）下进行的。讨论了稳定性、热导率、热阻和温度分布。实验结果通过计算流体动力学进行了验证。乙二醇和丙酮与氧化石墨烯 (GO) 纳米颗粒一起被选为工作流体。该实验是在 30W 的恒定热输入和各种填充率（20%、35%、50%、65%）下进行的。讨论了稳定性、热导率、热阻和温度分布。实验结果通过计算流体动力学进行了验证。乙二醇和丙酮与氧化石墨烯 (GO) 纳米颗粒一起被选为工作流体。该实验是在 30W 的恒定热输入和各种填充率（20%、35%、50%、65%）下进行的。讨论了稳定性、热导率、热阻和温度分布。实验结果通过计算流体动力学进行了验证。