摘要随着科学技术的进步和人类环境保护意识的增强，国内外的绿色能源产业已经 进入了高速发展的阶段，电动车行业、通讯行业以及某些特种行业都普遍的采用高 能量和高倍率的锂离子电池作为电源，并要求电池模块的质量比和体积比及安全性 在适当的范围内。从绿色能源产业兴起以来，人们对电池的安全性能、电池组结构 设计和生产效率等不断地在进行钻研。86007

本文主要研究对象是 LiFePO4 电池，根据锂离子电池的性能和设计任务书要求， 需要完成的任务如下：

(1)查阅了大量资料，了解不同种类电池散热方式并探究其研究现状，发掘现有 散热方式的不足，创新设计一种新型的电池模组散热方式。

(2)研究电池的工作特性，总结出电池发挥正常功能时的最佳工作环境，首先了 解锂电池的结构和工作原理，然后分析影响锂离子电池性能指标的因素。

(3)利用 Simulation 插件对锂电池模组进行热力分析中的瞬态模拟。建立了空气 冷却方式下的电池模组的结构模型，对在空冷方式下的锂离子电池模块仿真模拟， 分析仿真结果然后总结问题，从而优化设计出效果好的散热结构。

(4)增强电池模组的散热效果，我们对处于空冷方式下的电池模组进行改进：在 两个电池单体之间增加一个特定形状的平板热管。通过 Simulation 插件对自己创新 设计出来的新型结构的锂电池模组进行瞬态热力分析，比较两种锂电池模组结构仿 真得出的结果，验证新的锂电池模组结构的益处。

毕业论文关键词:  电池模组；平板热管；散热方式；仿真模拟；

Abstract With the progress of science and technology and the human environment protection consciousness enhancement, the domestic and foreign green energy industry has entered the stage of rapid development of electric vehicle industry, communications industry, as well as some special industry are widely used high power lithium ion battery as a power source, and the weight ratio and volume ratio of the power supply module safety high demands are put forward。Since the green energy industry rise, people for safety performance of the battery, battery pack structure design and the production efficiency continuously in the study。

In  this paper, the  main  research object is  the LiFePO4 battery,  according  to the performance of lithium ion battery and design specification requirements, the need to complete the task is as follows:

(1)Consult a large amount of data, understand the different types of battery cooling mode and explore its research status, the shortage of the existing cooling way, innovative design a new type of battery module, the cooling way。

(2)The working characteristics of battery, summed up the best working environment, when the battery function first understand the structure and working principle of lithium-ion batteries, and then analyzes the influential elements of the lithium ion battery performance indicators。

(3)Using Simulation plug-in for lithium ion battery module for thermal analysis of transient Simulation。Air cooling mode was established structure model of battery module, in the air cooling mode of lithium ion battery module simulation, the simulation results and then summarizes the problems, so as to optimize design the heat dissipation structure with good effect。

(4)Enhance the cooling effect of the battery module, we at air cooling mode of battery module for improvement: between the two battery monomer adding a specific shape of the flat heat pipe。Through Simulation plug-in for their innovative design of new type structure of lithium battery module for transient thermal analysis, comparing two

lithium battery module structure of the Simulation results, verify the benefits of a new lithium battery module structure。