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
严丽霞 1傅荣幸 1胡凯瑞 1王正禹 1江依义 1王久菊1
作者信息
- 1. 浙江省化工研究院有限公司,浙江 杭州 310023
- 折叠
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.
Abstract
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Key words
lithium-ion batteries/thermal runaway/thermal management/battery safety/fluorinated materials引用本文复制引用
出版年
2024
NETL
NSTL
万方数据