The battery temperature is one of the important factor that affects the performance of the battery and lifetime. To overcome these issues, the need and usage of an effective battery thermal management system (BTMS) is increased in recent years. The results of BTMS with conventional heat transfer fluids appears in many articles but the very few researchers developed and studied the performance of refrigerant based BTMS. In this research, a novel BTMS is developed and detailed study is conducted to analyze the impact of CuO based refrigerant (R134a) on its performance. Different quantity of CuO nanoparticles mixed with base refrigerant (R134a) and used as a heat transfer fluid. Initially, five different volume proportions (i.e. ɸ – 0.01, 0.02, 0.03, 0.04 and 0.05%) of CuO-R134a nano refrigerants are prepared and the thermophysical properties are studied. The test results reveal that the peak thermal conductivity and viscosity of about 1.28 W/mK and 0.00047 Pa-S is obtained for refrigerant with 0.05 vol.% CuO nanoparticle at 325 K and 300 K respectively. The average cell temperature of about 51 °C, 37 °C, 33 °C and 32 °C is observed for battery without cooling system, BTMS with R134a, 0.01% and 0.05% CuO/R134a respectively. From the results of this study, it can be suggested that the CuO- R134a nano refrigerant will be a promising cooling medium in the battery cooling system.

电池温度是影响电池性能和寿命的重要因素之一。为了克服这些问题，近年来增加了对有效电池热管理系统（BTMS）的需求和使用。使用传统传热流体进行BTMS的结果出现在许多文章中，但很少有研究人员开发和研究基于制冷剂的BTMS的性能。在这项研究中，开发了一种新型的BTMS并进行了详细的研究，以分析基于CuO的制冷剂（R134a）对其性能的影响。不同数量的CuO纳米颗粒与基础制冷剂（R134a）混合并用作传热流体。最初有五个不同的体积比例（即ɸ– 0.01、0.02、0.03、0.04和0。制备了05％的CuO-R134a纳米制冷剂，并对其热物理性质进行了研究。测试结果表明，对于含0.05％（体积）CuO纳米颗粒的制冷剂，在325 K和300 K处分别获得约1.28 W / mK和0.00047 Pa-S的峰值导热率和粘度。对于不带冷却系统的电池，分别具有R134a，0.01％和0.05％CuO / R134a的BTMS，电池的平均电池温度约为51°C，37°C，33°C和32°C。从这项研究的结果可以表明，CuO-R134a纳米制冷剂将成为电池冷却系统中有希望的冷却介质。对于不带冷却系统的电池，分别具有R134a，0.01％和0.05％CuO / R134a的BTMS，电池的平均电池温度约为51°C，37°C，33°C和32°C。从这项研究的结果可以表明，CuO-R134a纳米制冷剂将成为电池冷却系统中有希望的冷却介质。对于不带冷却系统的电池，分别具有R134a，0.01％和0.05％CuO / R134a的BTMS，电池的平均电池温度约为51°C，37°C，33°C和32°C。从这项研究的结果可以表明，CuO-R134a纳米制冷剂将成为电池冷却系统中有希望的冷却介质。