【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。更多还原

【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.更多还原