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A few days ago, it was widely rumored on the Internet that a 5-minute monitoring video clip of a new energy vehicle spontaneous combustion caused damage to a number of cars at the scene of the accident. According to the surveillance video, the fire at the scene spread more and more to nearby vehicles, thick smoke billowed and the sound of explosion was heard.

The accident occurred at about 14:24 on May 8, 2020, when a new energy vehicle was parked in a charging station, the charging gun was connected to the vehicle, and a number of new energy vehicles were densely parked nearby. At the beginning of the video, some strange noises were heard, then the emergency flasher of the white car on the right came on, and then the chassis of the car began to smoke.

At this time, the vehicle has obviously malfunctioned, with more and more black smoke, the bottom of the white car on the right appeared open fire and very rapidly, showing a flame ejection. As the fire was fierce, the fire swept through the whole car and ignited a new energy van parked next to it.

14:24, the ignited new energy minivan suddenly moved backward, and the fire continued to break out. Dozens of seconds later, the new energy minivan was also severely burned, during which the explosion was heard. Unfortunately, an all-electric car next to the minivan was also ignited, causing many cars to continue to burn.

An electric car in Tangxia in Dongguan suddenly burst into flames while charging at a charging post at 14:24 on May 8, according to fire officials in Dongguan, Guangdong. Dongguan fire quickly rushed to the scene to put out the fire, but fortunately there were no casualties in time for the fire, but the spontaneous combustion vehicles and several cars around them were burnt to skeletons.

It is said that the accident caused three new energy vehicles to be seriously damaged to a scrapped state, while two other vehicles were partially damaged.

Through the analysis, it is found that the white car on the right side of the surveillance video is Zhengzhou Nissan Shuaike Pure Electric (Shuaike EV), which was put on the market in July 2018, with a price of 203000 yuan before subsidy, using a ternary lithium battery pack with a capacity of 49.572kW h, and its comprehensive operating range is 301km. In May 2019, Shuai Ke Pure Electric ushered in a product update, which was adjusted to RMB 16.88-170800 according to different configurations. The supplier of the power battery of the new car was replaced by the ternary lithium battery of Bic Power, the capacity was increased to 54.35kWh, the comprehensive mileage of the Ministry of Industry and Information Technology was increased to 320km, and its maximum speed was 100km/h.

From the analysis of the accident, the deflagration phenomenon is generally the combustion reaction of the power battery. Since the accident occurred, the authorities involved in the brand have not made any explanation on the matter.

With the frequent occurrence of car spontaneous combustion due to high temperature in summer has aroused social concern, at the end of April this year, a new energy vehicle caught fire and exploded in a charging station in Shenzhen, and ignited many new energy vehicles, which has aroused people's vigilance. For the spontaneous combustion accidents of these new energy vehicles, we hope to attract the attention of the relevant departments, find out the causes of the accidents and hold responsible for them, so as to improve and improve the quality and safety level of new energy vehicles.

In fact, while vigorously promoting new energy vehicles, China is also popularizing the application of new energy vehicle early warning and monitoring platform, which can know the charging time, charging location and other information of all new energy vehicles in real time. to achieve the safety status and operation of each new energy vehicle monitoring. Through the establishment of battery early warning model, the batteries of high-risk vehicles can be accurately identified and real-time early warning can be provided.

Many netizens believe that as an emerging industry, some actions of new energy vehicles will be infinitely magnified by the outside world, and the incident of spontaneous combustion has become the focus of network attention, so there is the illusion of "high spontaneous combustion rate". There are also many views that there is no analysis report that the spontaneous combustion rate of new energy vehicles is higher than that of fuel vehicles, so spontaneous combustion should be treated correctly and rationally. Relevant manufacturers and management departments should investigate in time so as to continuously improve the quality and safety level of new energy vehicles.

According to the China Automobile Association, sales of new energy vehicles in China in 2019 were 1.206 million, 4.0% respectively compared with the same period last year, and new energy vehicles showed negative annual growth for the first time. In 2020, affected by the cold winter of the car market and the epidemic situation, new energy vehicles were even more severely hit. Sales of new energy vehicles from January to March were 114000, down 56.4 percent from the same period last year. So far, the sales of new energy vehicles in China have declined for nine months in a row, and policy help is urgently needed to tide over the difficulties. And some adverse events occurred, but also hit the new energy vehicle industry.

The fire department reminds the vast number of new energy vehicle users that they should pay attention to the problems of smoke and spontaneous combustion: 1. If there is a burning smell or pungent smell in the car, it proves that the temperature of something is too high, and it takes minutes to cause the plastic parts to catch fire. At this time, do not panic, stop immediately, then turn off the engine, get off, and call the 4S store rescue number. Let professional personnel come to deal with it as soon as possible; 2. The battery of an electric car tends to emit white smoke before it catches fire, and then it starts to burn a few minutes later. Therefore, when there is smoke from an unknown source in the car, stop immediately, and after getting off, keep a certain distance from the problem vehicle and call the rescue phone. Remember not to start or enter the vehicle until the source of the smoke has been identified. In addition, in order to avoid the disaster of nearby vehicles, a warning sign should be placed 3 meters behind the car. If the battery of an electric car is on fire, you must stop, get off and stay away from it immediately. The power battery has caught fire, and it is no longer important to turn off the fire. if the fire is not good enough, use a fire extinguisher to extinguish the fire. if the fire is big and there is no explosion, stay away from the electric car, call the fire alarm number, and do not approach the electric vehicle without authorization.

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