储能科学与技术

• 储能XXXX    

锂电池系统热管理技术研究进展

朱信龙, 王敏俊, 徐鑫甜, 张倩维, 王均毅, 施红   

  1. 江苏科技大学能源与动力学院

Research progress of thermal management technology for lithium battery systems

摘要:

近年来,电动汽车技术和新能源电站储能技术发展迅猛,这些技术对所使用的电池要求越来越高。锂电池因其转换效率高、能量密度大、环境友好等优点,具有较好的应用前景。但锂电池的使用寿命、安全性等特性受温度的影响较大,需要对其进行有效的热管理研究。针对此问题,本文主要分析了锂电池的温度特性,总结了锂电池在电动汽车和储能电站中的应用情况以及热释放特点,比较了目前已有的锂电池热管理技术。最后指出了动力锂电池热管理系统轻量化、经济化的发展方向。

关键词: 锂电池系统, 热管理技术, 储能, 热特性

Abstract:

In recent years, electric vehicle technology and energy storage technology for new energy power plants have developed rapidly, and these technologies have increasingly high requirements for the batteries in operation within a narrow optimal temperature range. Lithium batteries are commonly employed because of their high conversion efficiency, high energy density and environmental friendliness. Particularly, the service life, safety and other characteristics of lithium batteries are greatly affected by temperature, which requires effective thermal management. In this paper, the thermal performance of lithium batteries is analyzed, and the application of lithium batteries in electric vehicles and energy storage power stations are investigated. Also, the existing thermal management technologies for lithium batteries are compared. Finally, the development direction of lightweight and economical thermal management system for power lithium battery is pointed out.

Key words: Lithium battery system, Thermal management technology, Energy storage, Thermal performance

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