含氟物质在提升动力锂离子电池安全性方面的应用  

Application of Fluorine-Containing Substances in Improving Safety of Power Lithium-Ion Batteries

作　　者：严丽霞 傅荣幸[1] 胡凯瑞 王正禹 江依义 王久菊 YAN Lixia;FU Rongxing;HU Kairui;WANG Zhengyu;JIANG Yiyi;WANG Jiuju(Zhejiang Research Institute of Chemical Industry Co.,Ltd.,Hangzhou,Zhejiang 310023,China)

机构地区：[1]浙江省化工研究院有限公司,浙江杭州310023

出　　处：《浙江化工》2024年第5期5-12,共8页Zhejiang Chemical Industry

摘　　要：随着新能源汽车渗透率的提升,动力用锂离子电池能量密度不断攀升,研制高性能高能量密度电池体系,满足续航里程、充电时间和高安全性能,是目前重要的研究方向。锂离子电池热失控是其安全性研究中亟待解决的问题,含氟物质在提高锂离子电池热稳定性、预防热失控措施中具有广泛应用。本文从动力锂离子电池热失控现象出发,分类概述了电池热失控的诱导因素、含氟物质在优化单体电池材料(阳极、阴极、电解质和隔膜)、电池热管理技术中的应用以及提高锂电池热安全性的方法,为解决动力锂离子电池的热失控问题提供参考。With the increase of the penetration rate of new energy vehicles,the energy density of lithium-ion batteries for power is rising,and the development of high-performance and high-energy-density battery systems to meet the requirements of mileage,charging time and high safety performance is an important research direction at present.Thermal runaway of lithium-ion batteries is an urgent problem to be solved in their safety research,and fluorine-containing substances have been widely used in improving the thermal stability of lithium-ion batteries and preventing thermal runaway.Starting from the thermal runaway phenomenon of power lithium-ion batteries,this paper classifies and summarizes the inducing factors of battery thermal runaway,the application of fluorine-containing substances in optimizing single battery materials(anode,cathode,electrolyte and separator),battery thermal management technology,and methods to improve the thermal safety of power lithium batteries,so as to provide a reference for solving the thermal runaway problem of power lithium-ion batteries.

关 键 词：锂离子电池 热失控 热管理 电池安全性 氟材料 

分 类 号：TM912[电气工程—电力电子与电力传动]