锂离子电池安全性特点及热模型研究

Research on the safety characteristics and thermal model for lithium-ion batteries

锂离子电池的安全问题越来越受到重视。本文从锂离子电池热安全性特点着手,分析了锂离子电池的着火、爆炸和电解液泄漏等安全事故特点。简单介绍了锂离子电池主要材料的产热特性、相互反应产热特性。讨论了锂离子电池热模型建立的两种途径,即量热仪途径和化学反应途径, 通过这些热模型的建立,来指导锂离子电池的安全设计和管理。

The safety of lithium-ion batteries is being concerned more and more. From the batteries＇ thermal safety characteristics, its performances of fire, explosion, and electrolyte 1 point of lithium-ion eakage are analyzed in this paper. The heat generation of main materials and theirs interactions are introduced simply. Based on the studies of heat generation of the materials, two establishing methods of thermal models of lithium-ion batteries are discussed, that is, calorimeter method and chemical reaction method. The establishment of thermal model for lithium-ion batteries will play the direction role in lithium-ion cell safety management.