The widespread adoption of lithium-ion (Li-ion) batteries in electric and hybrid vehicles has garnered significant attention due to their high energy density, impressive power-to-mass ratio, and extended lifespan. However, challenges like non-uniform temperature distribution, suboptimal energy storage, and slower release rates have surfaced. The rising incidents of battery explosions underscore the urgent need for a thorough understanding of Li-ion battery technology, particularly in thermal management. This knowledge is vital for maintaining batteries within an optimal temperature range, improving operational efficiency, and ensuring stability and safety. This review section meticulously explores critical aspects of battery thermal management, focusing on the process of heat generation and transfer within the cell and module. It also examines the thermal management challenges through active and passive techniques, emphasizing advancements in heat transfer methodologies. The investigation of integrating nano-enhanced phase change materials (NePCMs) with Li-ion batteries is particularly noteworthy as a promising approach to enhance thermal conductivity and management. The review comprehensively elaborates on the functions, strategies, emerging concerns, integration methodologies, and benefits of NePCMs, thoroughly examining their impact on thermal management. This comprehensive review anticipates advancements in this vital domain, envisioning development trends and prospects associated with the application of NePCMs in battery thermal management.

中文翻译：

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推进电池热管理：基于纳米增强相变材料的系统的未来方向和挑战


锂离子 （Li-ion） 电池因其高能量密度、令人印象深刻的功率质量比和更长的使用寿命而在电动和混合动力汽车中的广泛采用引起了广泛关注。然而，温度分布不均匀、能量储存不理想和释放速率缓慢等挑战已经浮出水面。不断增加的电池爆炸事件凸显了对锂离子电池技术，尤其是热管理技术的迫切需要。这些知识对于将电池保持在最佳温度范围内、提高运行效率以及确保稳定性和安全性至关重要。本综述部分详细探讨了电池热管理的关键方面，重点介绍了电池和模块内热量的产生和传递过程。它还研究了通过主动和被动技术应对的热管理挑战，强调了传热方法的进步。将纳米增强相变材料 （NePCM） 与锂离子电池集成的研究尤其值得注意，因为它是一种增强导热性和管理的有前途的方法。本综述全面阐述了 NePCM 的功能、策略、新出现的问题、集成方法和优势，彻底研究了它们对热管理的影响。本综述预测了这一重要领域的进步，设想了与 NePCM 在电池热管理中的应用相关的发展趋势和前景。