锂离子动力汽车火灾危险性评价

本科论文With China's continuous promotion of the development of electric vehicles,lithium-ionbatteries in the industry has greatly improved the application.Although today's lithium-ionelectric vehicles have steadily improved their processes,related fire accidents continue tooccur.We cannot deny the benefits of the popularity of lithium-ion electric vehicles,but wecan reduce the probability of accidents as much as possible,reducing the economic andproperty damage caused by accidents.Lithium-ion power edgy cars are the most typical fireaccidents,because lithium battery cars have their special characteristics compared toconventional fuel cars,the rapid spread of fire,less control measures and so on,we have topay more attention to the fire danger of electric vehicles.This paper consults the data to understand the structure and working principle oflithium-ion electric vehicles and other related knowledge,combined with the actual situationof objective analysis of the various factors leading to the fire,including but not limited tohigh-voltage lines,battery packs.According to the corresponding principles,thecorresponding principles of the rational division of indicators,including people and varioushardware and software,the use of hierarchical analysis and expert assignment method todetermine the weight value of the indicators,reflecting the most worthy of attention to the keyindicators,strengthen the degree of attention.The actual investigation of lithium-ion poweredvehicles is carried out to further study its fire risk.Experiments on lithium batteries canconfirm that battery pack failure plays an important role in fire risk.According to the fire riskanalysis of electric vehicles,the corresponding preventive measures of battery pack,designproduction and fire protection can minimize the fire risk and ensure the safety of people'slives and property,and promote the development of lithium-ion power edi-power vehicleandand its phase industry.Key words:Lithium-ion powered cars;Fire hazard;Hazard identification;Safety evaluation;Precautions